lib/perl5/5.6.1/msys/CORE/perl.h

   1 /*    perl.h
   2  *
   3  *    Copyright (c) 1987-2001, Larry Wall
   4  *
   5  *    You may distribute under the terms of either the GNU General Public
   6  *    License or the Artistic License, as specified in the README file.
   7  *
   8  */
   9 #ifndef H_PERL
  10 #define H_PERL 1
  11
  12 #ifdef PERL_FOR_X2P
  13 /*
  14  * This file is being used for x2p stuff.
  15  * Above symbol is defined via -D in 'x2p/Makefile.SH'
  16  * Decouple x2p stuff from some of perls more extreme eccentricities.
  17  */
  18 #undef MULTIPLICITY
  19 #undef USE_STDIO
  20 #define USE_STDIO
  21 #endif /* PERL_FOR_X2P */
  22
  23 #define VOIDUSED 1
  24 #include "config.h"
  25
  26 #if defined(USE_ITHREADS) && defined(USE_5005THREADS)
  27 #  include "error: USE_ITHREADS and USE_5005THREADS are incompatible"
  28 #endif
  29
  30 /* XXX This next guard can disappear if the sources are revised
  31    to use USE_5005THREADS throughout. -- A.D  1/6/2000
  32 */
  33 #if defined(USE_ITHREADS) && defined(USE_THREADS)
  34 #  include "error: USE_ITHREADS and USE_THREADS are incompatible"
  35 #endif
  36
  37 /* See L<perlguts/"The Perl API"> for detailed notes on
  38  * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */
  39
  40 #ifdef USE_ITHREADS
  41 #  if !defined(MULTIPLICITY) && !defined(PERL_OBJECT)
  42 #    define MULTIPLICITY
  43 #  endif
  44 #endif
  45
  46 #ifdef USE_THREADS
  47 #  ifndef PERL_IMPLICIT_CONTEXT
  48 #    define PERL_IMPLICIT_CONTEXT
  49 #  endif
  50 #endif
  51
  52 #if defined(MULTIPLICITY)
  53 #  ifndef PERL_IMPLICIT_CONTEXT
  54 #    define PERL_IMPLICIT_CONTEXT
  55 #  endif
  56 #endif
  57
  58 #ifdef PERL_CAPI
  59 #  undef PERL_OBJECT
  60 #  ifndef MULTIPLICITY
  61 #    define MULTIPLICITY
  62 #  endif
  63 #  ifndef PERL_IMPLICIT_CONTEXT
  64 #    define PERL_IMPLICIT_CONTEXT
  65 #  endif
  66 #  ifndef PERL_IMPLICIT_SYS
  67 #    define PERL_IMPLICIT_SYS
  68 #  endif
  69 #endif
  70
  71 #ifdef PERL_OBJECT
  72 #  ifndef PERL_IMPLICIT_CONTEXT
  73 #    define PERL_IMPLICIT_CONTEXT
  74 #  endif
  75 #  ifndef PERL_IMPLICIT_SYS
  76 #    define PERL_IMPLICIT_SYS
  77 #  endif
  78 #endif
  79
  80 #ifdef PERL_OBJECT
  81
  82 /* PERL_OBJECT explained  - DickH and DougL @ ActiveState.com
  83
  84 Defining PERL_OBJECT turns on creation of a C++ object that
  85 contains all writable core perl global variables and functions.
  86 Stated another way, all necessary global variables and functions
  87 are members of a big C++ object. This object's class is CPerlObj.
  88 This allows a Perl Host to have multiple, independent perl
  89 interpreters in the same process space. This is very important on
  90 Win32 systems as the overhead of process creation is quite high --
  91 this could be even higher than the script compile and execute time
  92 for small scripts.
  93
  94 The perl executable implementation on Win32 is composed of perl.exe
  95 (the Perl Host) and perlX.dll. (the Perl Core). This allows the
  96 same Perl Core to easily be embedded in other applications that use
  97 the perl interpreter.
  98
  99 +-----------+
 100 | Perl Host |
 101 +-----------+
 102       ^
 103       |
 104       v
 105 +-----------+   +-----------+
 106 | Perl Core |<->| Extension |
 107 +-----------+   +-----------+ ...
 108
 109 Defining PERL_OBJECT has the following effects:
 110
 111 PERL CORE
 112 1. CPerlObj is defined (this is the PERL_OBJECT)
 113 2. all static functions that needed to access either global
 114 variables or functions needed are made member functions
 115 3. all writable static variables are made member variables
 116 4. all global variables and functions are defined as:
 117         #define var CPerlObj::PL_var
 118         #define func CPerlObj::Perl_func
 119         * these are in embed.h
 120 This necessitated renaming some local variables and functions that
 121 had the same name as a global variable or function. This was
 122 probably a _good_ thing anyway.
 123
 124
 125 EXTENSIONS
 126 1. Access to global variables and perl functions is through a
 127 pointer to the PERL_OBJECT. This pointer type is CPerlObj*. This is
 128 made transparent to extension developers by the following macros:
 129         #define var pPerl->PL_var
 130         #define func pPerl->Perl_func
 131         * these are done in objXSUB.h
 132 This requires that the extension be compiled as C++, which means
 133 that the code must be ANSI C and not K&R C. For K&R extensions,
 134 please see the C API notes located in Win32/GenCAPI.pl. This script
 135 creates a perlCAPI.lib that provides a K & R compatible C interface
 136 to the PERL_OBJECT.
 137 2. Local variables and functions cannot have the same name as perl's
 138 variables or functions since the macros will redefine these. Look for
 139 this if you get some strange error message and it does not look like
 140 the code that you had written. This often happens with variables that
 141 are local to a function.
 142
 143 PERL HOST
 144 1. The perl host is linked with perlX.lib to get perl_alloc. This
 145 function will return a pointer to CPerlObj (the PERL_OBJECT). It
 146 takes pointers to the various PerlXXX_YYY interfaces (see iperlsys.h
 147 for more information on this).
 148 2. The perl host calls the same functions as normally would be
 149 called in setting up and running a perl script, except that the
 150 functions are now member functions of the PERL_OBJECT.
 151
 152 */
 153
 154
 155 class CPerlObj;
 156
 157 #define STATIC
 158 #define CPERLscope(x)           CPerlObj::x
 159 #define CALL_FPTR(fptr)         (aTHXo->*fptr)
 160
 161 #define pTHXo                   CPerlObj *pPerl
 162 #define pTHXo_                  pTHXo,
 163 #define aTHXo                   this
 164 #define aTHXo_                  this,
 165 #define PERL_OBJECT_THIS        aTHXo
 166 #define PERL_OBJECT_THIS_       aTHXo_
 167 #define dTHXoa(a)               pTHXo = (CPerlObj*)a
 168 #define dTHXo                   pTHXo = PERL_GET_THX
 169
 170 #define pTHXx           void
 171 #define pTHXx_
 172 #define aTHXx
 173 #define aTHXx_
 174
 175 #else /* !PERL_OBJECT */
 176
 177 #ifdef PERL_IMPLICIT_CONTEXT
 178 #  ifdef USE_THREADS
 179 struct perl_thread;
 180 #    define pTHX        register struct perl_thread *thr
 181 #    define aTHX        thr
 182 #    define dTHR        dNOOP /* only backward compatibility */
 183 #    define dTHXa(a)    pTHX = (struct perl_thread*)a
 184 #  else
 185 #    ifndef MULTIPLICITY
 186 #      define MULTIPLICITY
 187 #    endif
 188 #    define pTHX        register PerlInterpreter *my_perl
 189 #    define aTHX        my_perl
 190 #    define dTHXa(a)    pTHX = (PerlInterpreter*)a
 191 #  endif
 192 #  define dTHX          pTHX = PERL_GET_THX
 193 #  define pTHX_         pTHX,
 194 #  define aTHX_         aTHX,
 195 #  define pTHX_1        2
 196 #  define pTHX_2        3
 197 #  define pTHX_3        4
 198 #  define pTHX_4        5
 199 #endif
 200
 201 #define STATIC static
 202 #define CPERLscope(x) x
 203 #define CPERLarg void
 204 #define CPERLarg_
 205 #define _CPERLarg
 206 #define PERL_OBJECT_THIS
 207 #define _PERL_OBJECT_THIS
 208 #define PERL_OBJECT_THIS_
 209 #define CALL_FPTR(fptr) (*fptr)
 210
 211 #endif /* PERL_OBJECT */
 212
 213 #define CALLRUNOPS  CALL_FPTR(PL_runops)
 214 #define CALLREGCOMP CALL_FPTR(PL_regcompp)
 215 #define CALLREGEXEC CALL_FPTR(PL_regexecp)
 216 #define CALLREG_INTUIT_START CALL_FPTR(PL_regint_start)
 217 #define CALLREG_INTUIT_STRING CALL_FPTR(PL_regint_string)
 218 #define CALLREGFREE CALL_FPTR(PL_regfree)
 219
 220 #ifdef PERL_FLEXIBLE_EXCEPTIONS
 221 #  define CALLPROTECT CALL_FPTR(PL_protect)
 222 #endif
 223
 224 #define NOOP (void)0
 225 #define dNOOP extern int Perl___notused
 226
 227 #ifndef pTHX
 228 #  define pTHX          void
 229 #  define pTHX_
 230 #  define aTHX
 231 #  define aTHX_
 232 #  define dTHXa(a)      dNOOP
 233 #  define dTHX          dNOOP
 234 #  define pTHX_1        1
 235 #  define pTHX_2        2
 236 #  define pTHX_3        3
 237 #  define pTHX_4        4
 238 #endif
 239
 240 #ifndef pTHXo
 241 #  define pTHXo         pTHX
 242 #  define pTHXo_        pTHX_
 243 #  define aTHXo         aTHX
 244 #  define aTHXo_        aTHX_
 245 #  define dTHXo         dTHX
 246 #  define dTHXoa(x)     dTHXa(x)
 247 #endif
 248
 249 #ifndef pTHXx
 250 #  define pTHXx         register PerlInterpreter *my_perl
 251 #  define pTHXx_        pTHXx,
 252 #  define aTHXx         my_perl
 253 #  define aTHXx_        aTHXx,
 254 #  define dTHXx         dTHX
 255 #endif
 256
 257 #undef START_EXTERN_C
 258 #undef END_EXTERN_C
 259 #undef EXTERN_C
 260 #ifdef __cplusplus
 261 #  define START_EXTERN_C extern "C" {
 262 #  define END_EXTERN_C }
 263 #  define EXTERN_C extern "C"
 264 #else
 265 #  define START_EXTERN_C
 266 #  define END_EXTERN_C
 267 #  define EXTERN_C extern
 268 #endif
 269
 270 #ifdef OP_IN_REGISTER
 271 #  ifdef __GNUC__
 272 #    define stringify_immed(s) #s
 273 #    define stringify(s) stringify_immed(s)
 274 register struct op *Perl_op asm(stringify(OP_IN_REGISTER));
 275 #  endif
 276 #endif
 277
 278 /*
 279  * STMT_START { statements; } STMT_END;
 280  * can be used as a single statement, as in
 281  * if (x) STMT_START { ... } STMT_END; else ...
 282  *
 283  * Trying to select a version that gives no warnings...
 284  */
 285 #if !(defined(STMT_START) && defined(STMT_END))
 286 # if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
 287 #   define STMT_START   (void)( /* gcc supports ``({ STATEMENTS; })'' */
 288 #   define STMT_END     )
 289 # else
 290    /* Now which other defined()s do we need here ??? */
 291 #  if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
 292 #   define STMT_START   if (1)
 293 #   define STMT_END     else (void)0
 294 #  else
 295 #   define STMT_START   do
 296 #   define STMT_END     while (0)
 297 #  endif
 298 # endif
 299 #endif
 300
 301 #define WITH_THX(s) STMT_START { dTHX; s; } STMT_END
 302 #define WITH_THR(s) WITH_THX(s)
 303
 304 /*
 305  * SOFT_CAST can be used for args to prototyped functions to retain some
 306  * type checking; it only casts if the compiler does not know prototypes.
 307  */
 308 #if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
 309 #define SOFT_CAST(type)
 310 #else
 311 #define SOFT_CAST(type) (type)
 312 #endif
 313
 314 #ifndef BYTEORDER  /* Should never happen -- byteorder is in config.h */
 315 #   define BYTEORDER 0x1234
 316 #endif
 317
 318 /* Overall memory policy? */
 319 #ifndef CONSERVATIVE
 320 #   define LIBERAL 1
 321 #endif
 322
 323 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90
 324 #define ASCIIish
 325 #else
 326 #undef  ASCIIish
 327 #endif
 328
 329 /*
 330  * The following contortions are brought to you on behalf of all the
 331  * standards, semi-standards, de facto standards, not-so-de-facto standards
 332  * of the world, as well as all the other botches anyone ever thought of.
 333  * The basic theory is that if we work hard enough here, the rest of the
 334  * code can be a lot prettier.  Well, so much for theory.  Sorry, Henry...
 335  */
 336
 337 /* define this once if either system, instead of cluttering up the src */
 338 #if defined(MSDOS) || defined(atarist) || defined(WIN32)
 339 #define DOSISH 1
 340 #endif
 341
 342 #if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus) || defined( EPOC)
 343 # define STANDARD_C 1
 344 #endif
 345
 346 #if defined(__cplusplus) || defined(WIN32) || defined(__sgi) || defined(OS2) || defined(__DGUX) || defined( EPOC) || defined(__QNX__)
 347 # define DONT_DECLARE_STD 1
 348 #endif
 349
 350 #if defined(HASVOLATILE) || defined(STANDARD_C)
 351 #   ifdef __cplusplus
 352 #       define VOL              // to temporarily suppress warnings
 353 #   else
 354 #       define VOL volatile
 355 #   endif
 356 #else
 357 #   define VOL
 358 #endif
 359
 360 #define TAINT           (PL_tainted = TRUE)
 361 #define TAINT_NOT       (PL_tainted = FALSE)
 362 #define TAINT_IF(c)     if (c) { PL_tainted = TRUE; }
 363 #define TAINT_ENV()     if (PL_tainting) { taint_env(); }
 364 #define TAINT_PROPER(s) if (PL_tainting) { taint_proper(Nullch, s); }
 365
 366 /* XXX All process group stuff is handled in pp_sys.c.  Should these
 367    defines move there?  If so, I could simplify this a lot. --AD  9/96.
 368 */
 369 /* Process group stuff changed from traditional BSD to POSIX.
 370    perlfunc.pod documents the traditional BSD-style syntax, so we'll
 371    try to preserve that, if possible.
 372 */
 373 #ifdef HAS_SETPGID
 374 #  define BSD_SETPGRP(pid, pgrp)        setpgid((pid), (pgrp))
 375 #else
 376 #  if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
 377 #    define BSD_SETPGRP(pid, pgrp)      setpgrp((pid), (pgrp))
 378 #  else
 379 #    ifdef HAS_SETPGRP2  /* DG/UX */
 380 #      define BSD_SETPGRP(pid, pgrp)    setpgrp2((pid), (pgrp))
 381 #    endif
 382 #  endif
 383 #endif
 384 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
 385 #  define HAS_SETPGRP  /* Well, effectively it does . . . */
 386 #endif
 387
 388 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
 389     our life easier :-) so we'll try it.
 390 */
 391 #ifdef HAS_GETPGID
 392 #  define BSD_GETPGRP(pid)              getpgid((pid))
 393 #else
 394 #  if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
 395 #    define BSD_GETPGRP(pid)            getpgrp((pid))
 396 #  else
 397 #    ifdef HAS_GETPGRP2  /* DG/UX */
 398 #      define BSD_GETPGRP(pid)          getpgrp2((pid))
 399 #    endif
 400 #  endif
 401 #endif
 402 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
 403 #  define HAS_GETPGRP  /* Well, effectively it does . . . */
 404 #endif
 405
 406 /* These are not exact synonyms, since setpgrp() and getpgrp() may
 407    have different behaviors, but perl.h used to define USE_BSDPGRP
 408    (prior to 5.003_05) so some extension might depend on it.
 409 */
 410 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
 411 #  ifndef USE_BSDPGRP
 412 #    define USE_BSDPGRP
 413 #  endif
 414 #endif
 415
 416 /* HP-UX 10.X CMA (Common Multithreaded Architecure) insists that
 417    pthread.h must be included before all other header files.
 418 */
 419 #if (defined(USE_THREADS) || defined(USE_ITHREADS)) \
 420     && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD)
 421 #  include <pthread.h>
 422 #endif
 423
 424 #ifndef _TYPES_         /* If types.h defines this it's easy. */
 425 #   ifndef major                /* Does everyone's types.h define this? */
 426 #       include <sys/types.h>
 427 #   endif
 428 #endif
 429
 430 #ifdef __cplusplus
 431 #  ifndef I_STDARG
 432 #    define I_STDARG 1
 433 #  endif
 434 #endif
 435
 436 #ifdef I_STDARG
 437 #  include <stdarg.h>
 438 #else
 439 #  ifdef I_VARARGS
 440 #    include <varargs.h>
 441 #  endif
 442 #endif
 443
 444 #ifdef USE_NEXT_CTYPE
 445
 446 #if NX_CURRENT_COMPILER_RELEASE >= 500
 447 #  include <bsd/ctypes.h>
 448 #else
 449 #  if NX_CURRENT_COMPILER_RELEASE >= 400
 450 #    include <objc/NXCType.h>
 451 #  else /*  NX_CURRENT_COMPILER_RELEASE < 400 */
 452 #    include <appkit/NXCType.h>
 453 #  endif /*  NX_CURRENT_COMPILER_RELEASE >= 400 */
 454 #endif /*  NX_CURRENT_COMPILER_RELEASE >= 500 */
 455
 456 #else /* !USE_NEXT_CTYPE */
 457 #include <ctype.h>
 458 #endif /* USE_NEXT_CTYPE */
 459
 460 #ifdef METHOD   /* Defined by OSF/1 v3.0 by ctype.h */
 461 #undef METHOD
 462 #endif
 463
 464 #ifdef I_LOCALE
 465 #   include <locale.h>
 466 #endif
 467
 468 #if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
 469 #   define USE_LOCALE
 470 #   if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
 471        && defined(HAS_STRXFRM)
 472 #       define USE_LOCALE_COLLATE
 473 #   endif
 474 #   if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
 475 #       define USE_LOCALE_CTYPE
 476 #   endif
 477 #   if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
 478 #       define USE_LOCALE_NUMERIC
 479 #   endif
 480 #endif /* !NO_LOCALE && HAS_SETLOCALE */
 481
 482 #include <setjmp.h>
 483
 484 #ifdef I_SYS_PARAM
 485 #   ifdef PARAM_NEEDS_TYPES
 486 #       include <sys/types.h>
 487 #   endif
 488 #   include <sys/param.h>
 489 #endif
 490
 491 /* Use all the "standard" definitions? */
 492 #if defined(STANDARD_C) && defined(I_STDLIB)
 493 #   include <stdlib.h>
 494 #endif
 495
 496 /* If this causes problems, set i_unistd=undef in the hint file.  */
 497 #ifdef I_UNISTD
 498 #   include <unistd.h>
 499 #endif
 500
 501 #ifdef PERL_MICRO /* Last chance to export Perl_my_swap */
 502 #  define MYSWAP
 503 #endif
 504
 505 #if !defined(PERL_FOR_X2P) && !defined(WIN32)
 506 #  include "embed.h"
 507 #endif
 508
 509 #define MEM_SIZE Size_t
 510
 511 #if defined(STANDARD_C) && defined(I_STDDEF)
 512 #   include <stddef.h>
 513 #   define STRUCT_OFFSET(s,m)  offsetof(s,m)
 514 #else
 515 #   define STRUCT_OFFSET(s,m)  (Size_t)(&(((s *)0)->m))
 516 #endif
 517
 518 #if defined(I_STRING) || defined(__cplusplus)
 519 #   include <string.h>
 520 #else
 521 #   include <strings.h>
 522 #endif
 523
 524 /* This comes after <stdlib.h> so we don't try to change the standard
 525  * library prototypes; we'll use our own in proto.h instead. */
 526
 527 #ifdef MYMALLOC
 528 #  ifdef PERL_POLLUTE_MALLOC
 529 #   ifndef PERL_EXTMALLOC_DEF
 530 #    define Perl_malloc         malloc
 531 #    define Perl_calloc         calloc
 532 #    define Perl_realloc        realloc
 533 #    define Perl_mfree          free
 534 #   endif
 535 #  else
 536 #    define EMBEDMYMALLOC       /* for compatibility */
 537 #  endif
 538 Malloc_t Perl_malloc (MEM_SIZE nbytes);
 539 Malloc_t Perl_calloc (MEM_SIZE elements, MEM_SIZE size);
 540 Malloc_t Perl_realloc (Malloc_t where, MEM_SIZE nbytes);
 541 /* 'mfree' rather than 'free', since there is already a 'perl_free'
 542  * that causes clashes with case-insensitive linkers */
 543 Free_t   Perl_mfree (Malloc_t where);
 544
 545 typedef struct perl_mstats perl_mstats_t;
 546
 547 #  define safemalloc  Perl_malloc
 548 #  define safecalloc  Perl_calloc
 549 #  define saferealloc Perl_realloc
 550 #  define safefree    Perl_mfree
 551 #else  /* MYMALLOC */
 552 #  define safemalloc  safesysmalloc
 553 #  define safecalloc  safesyscalloc
 554 #  define saferealloc safesysrealloc
 555 #  define safefree    safesysfree
 556 #endif /* MYMALLOC */
 557
 558 #if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
 559 #define strchr index
 560 #define strrchr rindex
 561 #endif
 562
 563 #ifdef I_MEMORY
 564 #  include <memory.h>
 565 #endif
 566
 567 #ifdef HAS_MEMCPY
 568 #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
 569 #    ifndef memcpy
 570         extern char * memcpy (char*, char*, int);
 571 #    endif
 572 #  endif
 573 #else
 574 #   ifndef memcpy
 575 #       ifdef HAS_BCOPY
 576 #           define memcpy(d,s,l) bcopy(s,d,l)
 577 #       else
 578 #           define memcpy(d,s,l) my_bcopy(s,d,l)
 579 #       endif
 580 #   endif
 581 #endif /* HAS_MEMCPY */
 582
 583 #ifdef HAS_MEMSET
 584 #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
 585 #    ifndef memset
 586         extern char *memset (char*, int, int);
 587 #    endif
 588 #  endif
 589 #else
 590 #  define memset(d,c,l) my_memset(d,c,l)
 591 #endif /* HAS_MEMSET */
 592
 593 #if !defined(HAS_MEMMOVE) && !defined(memmove)
 594 #   if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
 595 #       define memmove(d,s,l) bcopy(s,d,l)
 596 #   else
 597 #       if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
 598 #           define memmove(d,s,l) memcpy(d,s,l)
 599 #       else
 600 #           define memmove(d,s,l) my_bcopy(s,d,l)
 601 #       endif
 602 #   endif
 603 #endif
 604
 605 #if defined(mips) && defined(ultrix) && !defined(__STDC__)
 606 #   undef HAS_MEMCMP
 607 #endif
 608
 609 #if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
 610 #  if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
 611 #    ifndef memcmp
 612         extern int memcmp (char*, char*, int);
 613 #    endif
 614 #  endif
 615 #  ifdef BUGGY_MSC
 616   #  pragma function(memcmp)
 617 #  endif
 618 #else
 619 #   ifndef memcmp
 620 #       define memcmp   my_memcmp
 621 #   endif
 622 #endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
 623
 624 #ifndef memzero
 625 #   ifdef HAS_MEMSET
 626 #       define memzero(d,l) memset(d,0,l)
 627 #   else
 628 #       ifdef HAS_BZERO
 629 #           define memzero(d,l) bzero(d,l)
 630 #       else
 631 #           define memzero(d,l) my_bzero(d,l)
 632 #       endif
 633 #   endif
 634 #endif
 635
 636 #ifndef memchr
 637 #   ifndef HAS_MEMCHR
 638 #       define memchr(s,c,n) ninstr((char*)(s), ((char*)(s)) + n, &(c), &(c) + 1)
 639 #   endif
 640 #endif
 641
 642 #ifndef HAS_BCMP
 643 #   ifndef bcmp
 644 #       define bcmp(s1,s2,l) memcmp(s1,s2,l)
 645 #   endif
 646 #endif /* !HAS_BCMP */
 647
 648 #ifdef I_NETINET_IN
 649 #   include <netinet/in.h>
 650 #endif
 651
 652 #ifdef I_ARPA_INET
 653 #   include <arpa/inet.h>
 654 #endif
 655
 656 #if defined(SF_APPEND) && defined(USE_SFIO) && defined(I_SFIO)
 657 /* <sfio.h> defines SF_APPEND and <sys/stat.h> might define SF_APPEND
 658  * (the neo-BSD seem to do this).  */
 659 #   undef SF_APPEND
 660 #endif
 661
 662 #ifdef I_SYS_STAT
 663 #   include <sys/stat.h>
 664 #endif
 665
 666 /* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
 667    like UTekV) are broken, sometimes giving false positives.  Undefine
 668    them here and let the code below set them to proper values.
 669
 670    The ghs macro stands for GreenHills Software C-1.8.5 which
 671    is the C compiler for sysV88 and the various derivatives.
 672    This header file bug is corrected in gcc-2.5.8 and later versions.
 673    --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94.  */
 674
 675 #if defined(uts) || (defined(m88k) && defined(ghs))
 676 #   undef S_ISDIR
 677 #   undef S_ISCHR
 678 #   undef S_ISBLK
 679 #   undef S_ISREG
 680 #   undef S_ISFIFO
 681 #   undef S_ISLNK
 682 #endif
 683
 684 #ifdef I_TIME
 685 #   include <time.h>
 686 #endif
 687
 688 #ifdef I_SYS_TIME
 689 #   ifdef I_SYS_TIME_KERNEL
 690 #       define KERNEL
 691 #   endif
 692 #   include <sys/time.h>
 693 #   ifdef I_SYS_TIME_KERNEL
 694 #       undef KERNEL
 695 #   endif
 696 #endif
 697
 698 #if defined(HAS_TIMES) && defined(I_SYS_TIMES)
 699 #    include <sys/times.h>
 700 #endif
 701
 702 #if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
 703 #   undef HAS_STRERROR
 704 #endif
 705
 706 #include <errno.h>
 707
 708 #if defined(WIN32) && (defined(PERL_OBJECT) || defined(PERL_IMPLICIT_SYS) || defined(PERL_CAPI))
 709 #  define WIN32SCK_IS_STDSCK            /* don't pull in custom wsock layer */
 710 #endif
 711
 712 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
 713 # include <sys/socket.h>
 714 # if defined(USE_SOCKS) && defined(I_SOCKS)
 715 #   if !defined(INCLUDE_PROTOTYPES)
 716 #       define INCLUDE_PROTOTYPES /* for <socks.h> */
 717 #       define PERL_SOCKS_NEED_PROTOTYPES
 718 #   endif
 719 #   ifdef USE_THREADS
 720 #       define PERL_USE_THREADS /* store our value */
 721 #       undef USE_THREADS
 722 #   endif
 723 #   include <socks.h>
 724 #   ifdef USE_THREADS
 725 #       undef USE_THREADS /* socks.h does this on its own */
 726 #   endif
 727 #   ifdef PERL_USE_THREADS
 728 #       define USE_THREADS /* restore our value */
 729 #       undef PERL_USE_THREADS
 730 #   endif
 731 #   ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */
 732 #       undef INCLUDE_PROTOTYPES
 733 #       undef PERL_SOCKS_NEED_PROTOTYPES
 734 #   endif
 735 #   ifdef USE_64_BIT_ALL
 736 #       define SOCKS_64BIT_BUG /* until proven otherwise */
 737 #   endif
 738 # endif
 739 # ifdef I_NETDB
 740 #  include <netdb.h>
 741 # endif
 742 # ifndef ENOTSOCK
 743 #  ifdef I_NET_ERRNO
 744 #   include <net/errno.h>
 745 #  endif
 746 # endif
 747 #endif
 748
 749 #ifdef SETERRNO
 750 # undef SETERRNO  /* SOCKS might have defined this */
 751 #endif
 752
 753 #ifdef VMS
 754 #   define SETERRNO(errcode,vmserrcode) \
 755         STMT_START {                    \
 756             set_errno(errcode);         \
 757             set_vaxc_errno(vmserrcode); \
 758         } STMT_END
 759 #else
 760 #   define SETERRNO(errcode,vmserrcode) (errno = (errcode))
 761 #endif
 762
 763 #ifdef USE_THREADS
 764 #  define ERRSV (thr->errsv)
 765 #  define DEFSV THREADSV(0)
 766 #  define SAVE_DEFSV save_threadsv(0)
 767 #else
 768 #  define ERRSV GvSV(PL_errgv)
 769 #  define DEFSV GvSV(PL_defgv)
 770 #  define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv))
 771 #endif /* USE_THREADS */
 772
 773 #define ERRHV GvHV(PL_errgv)    /* XXX unused, here for compatibility */
 774
 775 #ifndef errno
 776         extern int errno;     /* ANSI allows errno to be an lvalue expr.
 777                                * For example in multithreaded environments
 778                                * something like this might happen:
 779                                * extern int *_errno(void);
 780                                * #define errno (*_errno()) */
 781 #endif
 782
 783 #ifdef HAS_STRERROR
 784 #       ifdef VMS
 785         char *strerror (int,...);
 786 #       else
 787 #ifndef DONT_DECLARE_STD
 788         char *strerror (int);
 789 #endif
 790 #       endif
 791 #       ifndef Strerror
 792 #           define Strerror strerror
 793 #       endif
 794 #else
 795 #    ifdef HAS_SYS_ERRLIST
 796         extern int sys_nerr;
 797         extern char *sys_errlist[];
 798 #       ifndef Strerror
 799 #           define Strerror(e) \
 800                 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
 801 #       endif
 802 #   endif
 803 #endif
 804
 805 #ifdef I_SYS_IOCTL
 806 #   ifndef _IOCTL_
 807 #       include <sys/ioctl.h>
 808 #   endif
 809 #endif
 810
 811 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
 812 #   ifdef HAS_SOCKETPAIR
 813 #       undef HAS_SOCKETPAIR
 814 #   endif
 815 #   ifdef I_NDBM
 816 #       undef I_NDBM
 817 #   endif
 818 #endif
 819
 820 #if INTSIZE == 2
 821 #   define htoni htons
 822 #   define ntohi ntohs
 823 #else
 824 #   define htoni htonl
 825 #   define ntohi ntohl
 826 #endif
 827
 828 /* Configure already sets Direntry_t */
 829 #if defined(I_DIRENT)
 830 #   include <dirent.h>
 831     /* NeXT needs dirent + sys/dir.h */
 832 #   if  defined(I_SYS_DIR) && (defined(NeXT) || defined(__NeXT__))
 833 #       include <sys/dir.h>
 834 #   endif
 835 #else
 836 #   ifdef I_SYS_NDIR
 837 #       include <sys/ndir.h>
 838 #   else
 839 #       ifdef I_SYS_DIR
 840 #           ifdef hp9000s500
 841 #               include <ndir.h>        /* may be wrong in the future */
 842 #           else
 843 #               include <sys/dir.h>
 844 #           endif
 845 #       endif
 846 #   endif
 847 #endif
 848
 849 #ifdef FPUTS_BOTCH
 850 /* work around botch in SunOS 4.0.1 and 4.0.2 */
 851 #   ifndef fputs
 852 #       define fputs(sv,fp) fprintf(fp,"%s",sv)
 853 #   endif
 854 #endif
 855
 856 /*
 857  * The following gobbledygook brought to you on behalf of __STDC__.
 858  * (I could just use #ifndef __STDC__, but this is more bulletproof
 859  * in the face of half-implementations.)
 860  */
 861
 862 #ifdef I_SYSMODE
 863 #include <sys/mode.h>
 864 #endif
 865
 866 #ifndef S_IFMT
 867 #   ifdef _S_IFMT
 868 #       define S_IFMT _S_IFMT
 869 #   else
 870 #       define S_IFMT 0170000
 871 #   endif
 872 #endif
 873
 874 #ifndef S_ISDIR
 875 #   define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
 876 #endif
 877
 878 #ifndef S_ISCHR
 879 #   define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
 880 #endif
 881
 882 #ifndef S_ISBLK
 883 #   ifdef S_IFBLK
 884 #       define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
 885 #   else
 886 #       define S_ISBLK(m) (0)
 887 #   endif
 888 #endif
 889
 890 #ifndef S_ISREG
 891 #   define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
 892 #endif
 893
 894 #ifndef S_ISFIFO
 895 #   ifdef S_IFIFO
 896 #       define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
 897 #   else
 898 #       define S_ISFIFO(m) (0)
 899 #   endif
 900 #endif
 901
 902 #ifndef S_ISLNK
 903 #   ifdef _S_ISLNK
 904 #       define S_ISLNK(m) _S_ISLNK(m)
 905 #   else
 906 #       ifdef _S_IFLNK
 907 #           define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
 908 #       else
 909 #           ifdef S_IFLNK
 910 #               define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
 911 #           else
 912 #               define S_ISLNK(m) (0)
 913 #           endif
 914 #       endif
 915 #   endif
 916 #endif
 917
 918 #ifndef S_ISSOCK
 919 #   ifdef _S_ISSOCK
 920 #       define S_ISSOCK(m) _S_ISSOCK(m)
 921 #   else
 922 #       ifdef _S_IFSOCK
 923 #           define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
 924 #       else
 925 #           ifdef S_IFSOCK
 926 #               define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
 927 #           else
 928 #               define S_ISSOCK(m) (0)
 929 #           endif
 930 #       endif
 931 #   endif
 932 #endif
 933
 934 #ifndef S_IRUSR
 935 #   ifdef S_IREAD
 936 #       define S_IRUSR S_IREAD
 937 #       define S_IWUSR S_IWRITE
 938 #       define S_IXUSR S_IEXEC
 939 #   else
 940 #       define S_IRUSR 0400
 941 #       define S_IWUSR 0200
 942 #       define S_IXUSR 0100
 943 #   endif
 944 #endif
 945
 946 #ifndef S_IRGRP
 947 #   ifdef S_IRUSR
 948 #       define S_IRGRP (S_IRUSR>>3)
 949 #       define S_IWGRP (S_IWUSR>>3)
 950 #       define S_IXGRP (S_IXUSR>>3)
 951 #   else
 952 #       define S_IRGRP 0040
 953 #       define S_IWGRP 0020
 954 #       define S_IXGRP 0010
 955 #   endif
 956 #endif
 957
 958 #ifndef S_IROTH
 959 #   ifdef S_IRUSR
 960 #       define S_IROTH (S_IRUSR>>6)
 961 #       define S_IWOTH (S_IWUSR>>6)
 962 #       define S_IXOTH (S_IXUSR>>6)
 963 #   else
 964 #       define S_IROTH 0040
 965 #       define S_IWOTH 0020
 966 #       define S_IXOTH 0010
 967 #   endif
 968 #endif
 969
 970 #ifndef S_ISUID
 971 #   define S_ISUID 04000
 972 #endif
 973
 974 #ifndef S_ISGID
 975 #   define S_ISGID 02000
 976 #endif
 977
 978 #ifndef S_IRWXU
 979 #   define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR)
 980 #endif
 981
 982 #ifndef S_IRWXG
 983 #   define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP)
 984 #endif
 985
 986 #ifndef S_IRWXO
 987 #   define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH)
 988 #endif
 989
 990 #ifndef S_IREAD
 991 #   define S_IREAD S_IRUSR
 992 #endif
 993
 994 #ifndef S_IWRITE
 995 #   define S_IWRITE S_IWUSR
 996 #endif
 997
 998 #ifndef S_IEXEC
 999 #   define S_IEXEC S_IXUSR
1000 #endif
1001
1002 #ifdef ff_next
1003 #   undef ff_next
1004 #endif
1005
1006 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
1007 #   define SLOPPYDIVIDE
1008 #endif
1009
1010 #ifdef UV
1011 #undef UV
1012 #endif
1013
1014 /*
1015     The IV type is supposed to be long enough to hold any integral
1016     value or a pointer.
1017     --Andy Dougherty    August 1996
1018 */
1019
1020 typedef IVTYPE IV;
1021 typedef UVTYPE UV;
1022
1023 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD)
1024 #  if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX)
1025 #    define IV_MAX INT64_MAX
1026 #    define IV_MIN INT64_MIN
1027 #    define UV_MAX UINT64_MAX
1028 #    ifndef UINT64_MIN
1029 #      define UINT64_MIN 0
1030 #    endif
1031 #    define UV_MIN UINT64_MIN
1032 #  else
1033 #    define IV_MAX PERL_QUAD_MAX
1034 #    define IV_MIN PERL_QUAD_MIN
1035 #    define UV_MAX PERL_UQUAD_MAX
1036 #    define UV_MIN PERL_UQUAD_MIN
1037 #  endif
1038 #  define IV_IS_QUAD
1039 #  define UV_IS_QUAD
1040 #else
1041 #  if defined(INT32_MAX) && IVSIZE == 4
1042 #    define IV_MAX INT32_MAX
1043 #    define IV_MIN INT32_MIN
1044 #    ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */
1045 #        define UV_MAX UINT32_MAX
1046 #    else
1047 #        define UV_MAX 4294967295U
1048 #    endif
1049 #    ifndef UINT32_MIN
1050 #      define UINT32_MIN 0
1051 #    endif
1052 #    define UV_MIN UINT32_MIN
1053 #  else
1054 #    define IV_MAX PERL_LONG_MAX
1055 #    define IV_MIN PERL_LONG_MIN
1056 #    define UV_MAX PERL_ULONG_MAX
1057 #    define UV_MIN PERL_ULONG_MIN
1058 #  endif
1059 #  if IVSIZE == 8
1060 #    define IV_IS_QUAD
1061 #    define UV_IS_QUAD
1062 #    ifndef HAS_QUAD
1063 #      define HAS_QUAD
1064 #    endif
1065 #  else
1066 #    undef IV_IS_QUAD
1067 #    undef UV_IS_QUAD
1068 #    undef HAS_QUAD
1069 #  endif
1070 #endif
1071
1072 #define IV_DIG (BIT_DIGITS(IVSIZE * 8))
1073 #define UV_DIG (BIT_DIGITS(UVSIZE * 8))
1074
1075 /*
1076  *  The macros INT2PTR and NUM2PTR are (despite their names)
1077  *  bi-directional: they will convert int/float to or from pointers.
1078  *  However the conversion to int/float are named explicitly:
1079  *  PTR2IV, PTR2UV, PTR2NV.
1080  *
1081  *  For int conversions we do not need two casts if pointers are
1082  *  the same size as IV and UV.   Otherwise we need an explicit
1083  *  cast (PTRV) to avoid compiler warnings.
1084  */
1085 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
1086 #  define PTRV                  UV
1087 #  define INT2PTR(any,d)        (any)(d)
1088 #else
1089 #  if PTRSIZE == LONGSIZE
1090 #    define PTRV                unsigned long
1091 #  else
1092 #    define PTRV                unsigned
1093 #  endif
1094 #  define INT2PTR(any,d)        (any)(PTRV)(d)
1095 #endif
1096 #define NUM2PTR(any,d)  (any)(PTRV)(d)
1097 #define PTR2IV(p)       INT2PTR(IV,p)
1098 #define PTR2UV(p)       INT2PTR(UV,p)
1099 #define PTR2NV(p)       NUM2PTR(NV,p)
1100 #if PTRSIZE == LONGSIZE
1101 #  define PTR2ul(p)     (unsigned long)(p)
1102 #else
1103 #  define PTR2ul(p)     INT2PTR(unsigned long,p)
1104 #endif
1105
1106 #ifdef USE_LONG_DOUBLE
1107 #  if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE == DOUBLESIZE
1108 #      define LONG_DOUBLE_EQUALS_DOUBLE
1109 #  endif
1110 #  if !(defined(HAS_LONG_DOUBLE) && (LONG_DOUBLESIZE > DOUBLESIZE))
1111 #     undef USE_LONG_DOUBLE /* Ouch! */
1112 #  endif
1113 #endif
1114
1115 #ifdef OVR_DBL_DIG
1116 /* Use an overridden DBL_DIG */
1117 # ifdef DBL_DIG
1118 #  undef DBL_DIG
1119 # endif
1120 # define DBL_DIG OVR_DBL_DIG
1121 #else
1122 /* The following is all to get DBL_DIG, in order to pick a nice
1123    default value for printing floating point numbers in Gconvert.
1124    (see config.h)
1125 */
1126 #ifdef I_LIMITS
1127 #include <limits.h>
1128 #endif
1129 #ifdef I_FLOAT
1130 #include <float.h>
1131 #endif
1132 #ifndef HAS_DBL_DIG
1133 #define DBL_DIG 15   /* A guess that works lots of places */
1134 #endif
1135 #endif
1136 #ifdef I_FLOAT
1137 #include <float.h>
1138 #endif
1139 #ifndef HAS_DBL_DIG
1140 #define DBL_DIG 15   /* A guess that works lots of places */
1141 #endif
1142
1143 #ifdef OVR_LDBL_DIG
1144 /* Use an overridden LDBL_DIG */
1145 # ifdef LDBL_DIG
1146 #  undef LDBL_DIG
1147 # endif
1148 # define LDBL_DIG OVR_LDBL_DIG
1149 #else
1150 /* The following is all to get LDBL_DIG, in order to pick a nice
1151    default value for printing floating point numbers in Gconvert.
1152    (see config.h)
1153 */
1154 # ifdef I_LIMITS
1155 #   include <limits.h>
1156 # endif
1157 # ifdef I_FLOAT
1158 #  include <float.h>
1159 # endif
1160 # ifndef HAS_LDBL_DIG
1161 #  if LONG_DOUBLESIZE == 10
1162 #   define LDBL_DIG 18 /* assume IEEE */
1163 #  else
1164 #   if LONG_DOUBLESIZE == 12
1165 #    define LDBL_DIG 18 /* gcc? */
1166 #   else
1167 #    if LONG_DOUBLESIZE == 16
1168 #     define LDBL_DIG 33 /* assume IEEE */
1169 #    else
1170 #     if LONG_DOUBLESIZE == DOUBLESIZE
1171 #      define LDBL_DIG DBL_DIG /* bummer */
1172 #     endif
1173 #    endif
1174 #   endif
1175 #  endif
1176 # endif
1177 #endif
1178
1179 typedef NVTYPE NV;
1180
1181 #ifdef I_IEEEFP
1182 #   include <ieeefp.h>
1183 #endif
1184
1185 #ifdef USE_LONG_DOUBLE
1186 #   ifdef I_SUNMATH
1187 #       include <sunmath.h>
1188 #   endif
1189 #   define NV_DIG LDBL_DIG
1190 #   ifdef LDBL_MANT_DIG
1191 #       define NV_MANT_DIG LDBL_MANT_DIG
1192 #   endif
1193 #   ifdef LDBL_MAX
1194 #       define NV_MAX LDBL_MAX
1195 #       define NV_MIN LDBL_MIN
1196 #   else
1197 #       ifdef HUGE_VALL
1198 #           define NV_MAX HUGE_VALL
1199 #       else
1200 #           ifdef HUGE_VAL
1201 #               define NV_MAX ((NV)HUGE_VAL)
1202 #           endif
1203 #       endif
1204 #   endif
1205 #   ifdef HAS_SQRTL
1206 #       define Perl_cos cosl
1207 #       define Perl_sin sinl
1208 #       define Perl_sqrt sqrtl
1209 #       define Perl_exp expl
1210 #       define Perl_log logl
1211 #       define Perl_atan2 atan2l
1212 #       define Perl_pow powl
1213 #       define Perl_floor floorl
1214 #       define Perl_fmod fmodl
1215 #   endif
1216 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */
1217 #   ifdef HAS_MODFL
1218 #       define Perl_modf(x,y) modfl(x,y)
1219 #   else
1220 #       define Perl_modf(x,y) ((long double)modf((double)(x),(double*)(y)))
1221 #   endif
1222 #   ifdef HAS_FREXPL
1223 #       define Perl_frexp(x,y) frexpl(x,y)
1224 #   else
1225 #       define Perl_frexp(x,y) ((long double)frexp((double)(x),y))
1226 #   endif
1227 #   ifdef HAS_ISNANL
1228 #       define Perl_isnan(x) isnanl(x)
1229 #   else
1230 #       ifdef HAS_ISNAN
1231 #           define Perl_isnan(x) isnan((double)(x))
1232 #       else
1233 #           define Perl_isnan(x) ((x)!=(x))
1234 #       endif
1235 #   endif
1236 #else
1237 #   define NV_DIG DBL_DIG
1238 #   ifdef DBL_MANT_DIG
1239 #       define NV_MANT_DIG DBL_MANT_DIG
1240 #   endif
1241 #   ifdef DBL_MAX
1242 #       define NV_MAX DBL_MAX
1243 #       define NV_MIN DBL_MIN
1244 #   else
1245 #       ifdef HUGE_VAL
1246 #           define NV_MAX HUGE_VAL
1247 #       endif
1248 #   endif
1249 #   define Perl_cos cos
1250 #   define Perl_sin sin
1251 #   define Perl_sqrt sqrt
1252 #   define Perl_exp exp
1253 #   define Perl_log log
1254 #   define Perl_atan2 atan2
1255 #   define Perl_pow pow
1256 #   define Perl_floor floor
1257 #   define Perl_fmod fmod
1258 #   define Perl_modf(x,y) modf(x,y)
1259 #   define Perl_frexp(x,y) frexp(x,y)
1260 #   ifdef HAS_ISNAN
1261 #       define Perl_isnan(x) isnan(x)
1262 #   else
1263 #       define Perl_isnan(x) ((x)!=(x))
1264 #   endif
1265 #endif
1266
1267 #if !defined(Perl_atof) && defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
1268 #   if !defined(Perl_atof) && defined(HAS_STRTOLD)
1269 #       define Perl_atof(s) (NV)strtold(s, (char**)NULL)
1270 #   endif
1271 #   if !defined(Perl_atof) && defined(HAS_ATOLF)
1272 #       define Perl_atof (NV)atolf
1273 #   endif
1274 #   if !defined(Perl_atof) && defined(PERL_SCNfldbl)
1275 #       define Perl_atof PERL_SCNfldbl
1276 #       define Perl_atof2(s,f) sscanf((s), "%"PERL_SCNfldbl, &(f))
1277 #   endif
1278 #endif
1279 #if !defined(Perl_atof)
1280 #   define Perl_atof atof /* we assume atof being available anywhere */
1281 #endif
1282 #if !defined(Perl_atof2)
1283 #   define Perl_atof2(s,f) ((f) = (NV)Perl_atof(s))
1284 #endif
1285
1286 /* Previously these definitions used hardcoded figures.
1287  * It is hoped these formula are more portable, although
1288  * no data one way or another is presently known to me.
1289  * The "PERL_" names are used because these calculated constants
1290  * do not meet the ANSI requirements for LONG_MAX, etc., which
1291  * need to be constants acceptable to #if - kja
1292  *    define PERL_LONG_MAX        2147483647L
1293  *    define PERL_LONG_MIN        (-LONG_MAX - 1)
1294  *    define PERL ULONG_MAX       4294967295L
1295  */
1296
1297 #ifdef I_LIMITS  /* Needed for cast_xxx() functions below. */
1298 #  include <limits.h>
1299 #else
1300 #ifdef I_VALUES
1301 #  include <values.h>
1302 #endif
1303 #endif
1304
1305 /*
1306  * Try to figure out max and min values for the integral types.  THE CORRECT
1307  * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE.  The
1308  * following hacks are used if neither limits.h or values.h provide them:
1309  * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
1310  *              for types <  int:  (unsigned TYPE)~(unsigned)0
1311  *      The argument to ~ must be unsigned so that later signed->unsigned
1312  *      conversion can't modify the value's bit pattern (e.g. -0 -> +0),
1313  *      and it must not be smaller than int because ~ does integral promotion.
1314  * <type>_MAX: (<type>) (U<type>_MAX >> 1)
1315  * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
1316  *      The latter is a hack which happens to work on some machines but
1317  *      does *not* catch any random system, or things like integer types
1318  *      with NaN if that is possible.
1319  *
1320  * All of the types are explicitly cast to prevent accidental loss of
1321  * numeric range, and in the hope that they will be less likely to confuse
1322  * over-eager optimizers.
1323  *
1324  */
1325
1326 #define PERL_UCHAR_MIN ((unsigned char)0)
1327
1328 #ifdef UCHAR_MAX
1329 #  define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
1330 #else
1331 #  ifdef MAXUCHAR
1332 #    define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
1333 #  else
1334 #    define PERL_UCHAR_MAX       ((unsigned char)~(unsigned)0)
1335 #  endif
1336 #endif
1337
1338 /*
1339  * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
1340  * ambiguous. It may be equivalent to (signed char) or (unsigned char)
1341  * depending on local options. Until Configure detects this (or at least
1342  * detects whether the "signed" keyword is available) the CHAR ranges
1343  * will not be included. UCHAR functions normally.
1344  *                                                           - kja
1345  */
1346
1347 #define PERL_USHORT_MIN ((unsigned short)0)
1348
1349 #ifdef USHORT_MAX
1350 #  define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
1351 #else
1352 #  ifdef MAXUSHORT
1353 #    define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
1354 #  else
1355 #    ifdef USHRT_MAX
1356 #      define PERL_USHORT_MAX ((unsigned short)USHRT_MAX)
1357 #    else
1358 #      define PERL_USHORT_MAX       ((unsigned short)~(unsigned)0)
1359 #    endif
1360 #  endif
1361 #endif
1362
1363 #ifdef SHORT_MAX
1364 #  define PERL_SHORT_MAX ((short)SHORT_MAX)
1365 #else
1366 #  ifdef MAXSHORT    /* Often used in <values.h> */
1367 #    define PERL_SHORT_MAX ((short)MAXSHORT)
1368 #  else
1369 #    ifdef SHRT_MAX
1370 #      define PERL_SHORT_MAX ((short)SHRT_MAX)
1371 #    else
1372 #      define PERL_SHORT_MAX      ((short) (PERL_USHORT_MAX >> 1))
1373 #    endif
1374 #  endif
1375 #endif
1376
1377 #ifdef SHORT_MIN
1378 #  define PERL_SHORT_MIN ((short)SHORT_MIN)
1379 #else
1380 #  ifdef MINSHORT
1381 #    define PERL_SHORT_MIN ((short)MINSHORT)
1382 #  else
1383 #    ifdef SHRT_MIN
1384 #      define PERL_SHORT_MIN ((short)SHRT_MIN)
1385 #    else
1386 #      define PERL_SHORT_MIN        (-PERL_SHORT_MAX - ((3 & -1) == 3))
1387 #    endif
1388 #  endif
1389 #endif
1390
1391 #ifdef UINT_MAX
1392 #  define PERL_UINT_MAX ((unsigned int)UINT_MAX)
1393 #else
1394 #  ifdef MAXUINT
1395 #    define PERL_UINT_MAX ((unsigned int)MAXUINT)
1396 #  else
1397 #    define PERL_UINT_MAX       (~(unsigned int)0)
1398 #  endif
1399 #endif
1400
1401 #define PERL_UINT_MIN ((unsigned int)0)
1402
1403 #ifdef INT_MAX
1404 #  define PERL_INT_MAX ((int)INT_MAX)
1405 #else
1406 #  ifdef MAXINT    /* Often used in <values.h> */
1407 #    define PERL_INT_MAX ((int)MAXINT)
1408 #  else
1409 #    define PERL_INT_MAX        ((int)(PERL_UINT_MAX >> 1))
1410 #  endif
1411 #endif
1412
1413 #ifdef INT_MIN
1414 #  define PERL_INT_MIN ((int)INT_MIN)
1415 #else
1416 #  ifdef MININT
1417 #    define PERL_INT_MIN ((int)MININT)
1418 #  else
1419 #    define PERL_INT_MIN        (-PERL_INT_MAX - ((3 & -1) == 3))
1420 #  endif
1421 #endif
1422
1423 #ifdef ULONG_MAX
1424 #  define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
1425 #else
1426 #  ifdef MAXULONG
1427 #    define PERL_ULONG_MAX ((unsigned long)MAXULONG)
1428 #  else
1429 #    define PERL_ULONG_MAX       (~(unsigned long)0)
1430 #  endif
1431 #endif
1432
1433 #define PERL_ULONG_MIN ((unsigned long)0L)
1434
1435 #ifdef LONG_MAX
1436 #  define PERL_LONG_MAX ((long)LONG_MAX)
1437 #else
1438 #  ifdef MAXLONG    /* Often used in <values.h> */
1439 #    define PERL_LONG_MAX ((long)MAXLONG)
1440 #  else
1441 #    define PERL_LONG_MAX        ((long) (PERL_ULONG_MAX >> 1))
1442 #  endif
1443 #endif
1444
1445 #ifdef LONG_MIN
1446 #  define PERL_LONG_MIN ((long)LONG_MIN)
1447 #else
1448 #  ifdef MINLONG
1449 #    define PERL_LONG_MIN ((long)MINLONG)
1450 #  else
1451 #    define PERL_LONG_MIN        (-PERL_LONG_MAX - ((3 & -1) == 3))
1452 #  endif
1453 #endif
1454
1455 #ifdef UV_IS_QUAD
1456
1457 #    define PERL_UQUAD_MAX      (~(UV)0)
1458 #    define PERL_UQUAD_MIN      ((UV)0)
1459 #    define PERL_QUAD_MAX       ((IV) (PERL_UQUAD_MAX >> 1))
1460 #    define PERL_QUAD_MIN       (-PERL_QUAD_MAX - ((3 & -1) == 3))
1461
1462 #endif
1463
1464 struct perl_mstats {
1465     UV *nfree;
1466     UV *ntotal;
1467     IV topbucket, topbucket_ev, topbucket_odd, totfree, total, total_chain;
1468     IV total_sbrk, sbrks, sbrk_good, sbrk_slack, start_slack, sbrked_remains;
1469     IV minbucket;
1470     /* Level 1 info */
1471     UV *bucket_mem_size;
1472     UV *bucket_available_size;
1473     UV nbuckets;
1474 };
1475
1476 typedef MEM_SIZE STRLEN;
1477
1478 typedef struct op OP;
1479 typedef struct cop COP;
1480 typedef struct unop UNOP;
1481 typedef struct binop BINOP;
1482 typedef struct listop LISTOP;
1483 typedef struct logop LOGOP;
1484 typedef struct pmop PMOP;
1485 typedef struct svop SVOP;
1486 typedef struct padop PADOP;
1487 typedef struct pvop PVOP;
1488 typedef struct loop LOOP;
1489
1490 typedef struct interpreter PerlInterpreter;
1491 #ifdef UTS
1492 #   define STRUCT_SV perl_sv /* Amdahl's <ksync.h> has struct sv */
1493 #else
1494 #   define STRUCT_SV sv
1495 #endif
1496 typedef struct STRUCT_SV SV;
1497 typedef struct av AV;
1498 typedef struct hv HV;
1499 typedef struct cv CV;
1500 typedef struct regexp REGEXP;
1501 typedef struct gp GP;
1502 typedef struct gv GV;
1503 typedef struct io IO;
1504 typedef struct context PERL_CONTEXT;
1505 typedef struct block BLOCK;
1506
1507 typedef struct magic MAGIC;
1508 typedef struct xrv XRV;
1509 typedef struct xpv XPV;
1510 typedef struct xpviv XPVIV;
1511 typedef struct xpvuv XPVUV;
1512 typedef struct xpvnv XPVNV;
1513 typedef struct xpvmg XPVMG;
1514 typedef struct xpvlv XPVLV;
1515 typedef struct xpvav XPVAV;
1516 typedef struct xpvhv XPVHV;
1517 typedef struct xpvgv XPVGV;
1518 typedef struct xpvcv XPVCV;
1519 typedef struct xpvbm XPVBM;
1520 typedef struct xpvfm XPVFM;
1521 typedef struct xpvio XPVIO;
1522 typedef struct mgvtbl MGVTBL;
1523 typedef union any ANY;
1524 typedef struct ptr_tbl_ent PTR_TBL_ENT_t;
1525 typedef struct ptr_tbl PTR_TBL_t;
1526
1527 #include "handy.h"
1528
1529 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO)
1530 #   if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO)
1531 #       define USE_64_BIT_RAWIO /* implicit */
1532 #   endif
1533 #endif
1534
1535 /* Notice the use of HAS_FSEEKO: now we are obligated to always use
1536  * fseeko/ftello if possible.  Don't go #defining ftell to ftello yourself,
1537  * however, because operating systems like to do that themself. */
1538 #ifndef FSEEKSIZE
1539 #   ifdef HAS_FSEEKO
1540 #       define FSEEKSIZE LSEEKSIZE
1541 #   else
1542 #       define FSEEKSIZE LONGSIZE
1543 #   endif
1544 #endif
1545
1546 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO)
1547 #   if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO)
1548 #       define USE_64_BIT_STDIO /* implicit */
1549 #   endif
1550 #endif
1551
1552 #ifdef USE_64_BIT_RAWIO
1553 #   ifdef HAS_OFF64_T
1554 #       undef Off_t
1555 #       define Off_t off64_t
1556 #       undef LSEEKSIZE
1557 #       define LSEEKSIZE 8
1558 #   endif
1559 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
1560  * will trigger defines like the ones below.  Some 64-bit environments,
1561  * however, do not.  Therefore we have to explicitly mix and match. */
1562 #   if defined(USE_OPEN64)
1563 #       define open open64
1564 #   endif
1565 #   if defined(USE_LSEEK64)
1566 #       define lseek lseek64
1567 #   else
1568 #       if defined(USE_LLSEEK)
1569 #           define lseek llseek
1570 #       endif
1571 #   endif
1572 #   if defined(USE_STAT64)
1573 #       define stat stat64
1574 #   endif
1575 #   if defined(USE_FSTAT64)
1576 #       define fstat fstat64
1577 #   endif
1578 #   if defined(USE_LSTAT64)
1579 #       define lstat lstat64
1580 #   endif
1581 #   if defined(USE_FLOCK64)
1582 #       define flock flock64
1583 #   endif
1584 #   if defined(USE_LOCKF64)
1585 #       define lockf lockf64
1586 #   endif
1587 #   if defined(USE_FCNTL64)
1588 #       define fcntl fcntl64
1589 #   endif
1590 #   if defined(USE_TRUNCATE64)
1591 #       define truncate truncate64
1592 #   endif
1593 #   if defined(USE_FTRUNCATE64)
1594 #       define ftruncate ftruncate64
1595 #   endif
1596 #endif
1597
1598 #ifdef USE_64_BIT_STDIO
1599 #   ifdef HAS_FPOS64_T
1600 #       undef Fpos_t
1601 #       define Fpos_t fpos64_t
1602 #   endif
1603 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that
1604  * will trigger defines like the ones below.  Some 64-bit environments,
1605  * however, do not. */
1606 #   if defined(USE_FOPEN64)
1607 #       define fopen fopen64
1608 #   endif
1609 #   if defined(USE_FSEEK64)
1610 #       define fseek fseek64 /* don't do fseeko here, see perlio.c */
1611 #   endif
1612 #   if defined(USE_FTELL64)
1613 #       define ftell ftell64 /* don't do ftello here, see perlio.c */
1614 #   endif
1615 #   if defined(USE_FSETPOS64)
1616 #       define fsetpos fsetpos64
1617 #   endif
1618 #   if defined(USE_FGETPOS64)
1619 #       define fgetpos fgetpos64
1620 #   endif
1621 #   if defined(USE_TMPFILE64)
1622 #       define tmpfile tmpfile64
1623 #   endif
1624 #   if defined(USE_FREOPEN64)
1625 #       define freopen freopen64
1626 #   endif
1627 #endif
1628
1629 #if defined(OS2)
1630 #  include "iperlsys.h"
1631 #endif
1632
1633 #if defined(__OPEN_VM)
1634 # include "vmesa/vmesaish.h"
1635 #endif
1636
1637 #ifdef DOSISH
1638 # if defined(OS2)
1639 #   include "os2ish.h"
1640 # else
1641 #   include "dosish.h"
1642 # endif
1643 #else
1644 # if defined(VMS)
1645 #   include "vmsish.h"
1646 # else
1647 #   if defined(PLAN9)
1648 #     include "./plan9/plan9ish.h"
1649 #   else
1650 #     if defined(MPE)
1651 #       include "mpeix/mpeixish.h"
1652 #     else
1653 #       if defined(__VOS__)
1654 #         include "vosish.h"
1655 #       else
1656 #         if defined(EPOC)
1657 #           include "epocish.h"
1658 #         else
1659 #           if defined(MACOS_TRADITIONAL)
1660 #             include "macos/macish.h"
1661 #             ifndef NO_ENVIRON_ARRAY
1662 #               define NO_ENVIRON_ARRAY
1663 #             endif
1664 #           else
1665 #             include "unixish.h"
1666 #           endif
1667 #         endif
1668 #       endif
1669 #     endif
1670 #   endif
1671 # endif
1672 #endif
1673
1674 #ifndef NO_ENVIRON_ARRAY
1675 #  define USE_ENVIRON_ARRAY
1676 #endif
1677
1678 #ifdef JPL
1679     /* E.g. JPL needs to operate on a copy of the real environment.
1680      * JDK 1.2 and 1.3 seem to get upset if the original environment
1681      * is diddled with. */
1682 #   define NEED_ENVIRON_DUP_FOR_MODIFY
1683 #endif
1684
1685 #ifndef PERL_SYS_INIT3
1686 #  define PERL_SYS_INIT3(argvp,argcp,envp) PERL_SYS_INIT(argvp,argcp)
1687 #endif
1688
1689 #ifndef MAXPATHLEN
1690 #  ifdef PATH_MAX
1691 #    ifdef _POSIX_PATH_MAX
1692 #       if PATH_MAX > _POSIX_PATH_MAX
1693 /* MAXPATHLEN is supposed to include the final null character,
1694  * as opposed to PATH_MAX and _POSIX_PATH_MAX. */
1695 #         define MAXPATHLEN (PATH_MAX+1)
1696 #       else
1697 #         define MAXPATHLEN (_POSIX_PATH_MAX+1)
1698 #       endif
1699 #    else
1700 #      define MAXPATHLEN (PATH_MAX+1)
1701 #    endif
1702 #  else
1703 #    ifdef _POSIX_PATH_MAX
1704 #       define MAXPATHLEN (_POSIX_PATH_MAX+1)
1705 #    else
1706 #       define MAXPATHLEN 1024  /* Err on the large side. */
1707 #    endif
1708 #  endif
1709 #endif
1710
1711 /*
1712  * USE_THREADS needs to be after unixish.h as <pthread.h> includes
1713  * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h>
1714  * this results in many functions being undeclared which bothers C++
1715  * May make sense to have threads after "*ish.h" anyway
1716  */
1717
1718 #if defined(USE_THREADS) || defined(USE_ITHREADS)
1719 #  if defined(USE_THREADS)
1720    /* pending resolution of licensing issues, we avoid the erstwhile
1721     * atomic.h everywhere */
1722 #  define EMULATE_ATOMIC_REFCOUNTS
1723 #  endif
1724 #  ifdef FAKE_THREADS
1725 #    include "fakethr.h"
1726 #  else
1727 #    ifdef WIN32
1728 #      include <win32thread.h>
1729 #    else
1730 #      ifdef OS2
1731 #        include "os2thread.h"
1732 #      else
1733 #        ifdef I_MACH_CTHREADS
1734 #          include <mach/cthreads.h>
1735 #          if (defined(NeXT) || defined(__NeXT__)) && defined(PERL_POLLUTE_MALLOC)
1736 #            define MUTEX_INIT_CALLS_MALLOC
1737 #          endif
1738 typedef cthread_t       perl_os_thread;
1739 typedef mutex_t         perl_mutex;
1740 typedef condition_t     perl_cond;
1741 typedef void *          perl_key;
1742 #        else /* Posix threads */
1743 #          ifdef I_PTHREAD
1744 #            include <pthread.h>
1745 #          endif
1746 typedef pthread_t       perl_os_thread;
1747 typedef pthread_mutex_t perl_mutex;
1748 typedef pthread_cond_t  perl_cond;
1749 typedef pthread_key_t   perl_key;
1750 #        endif /* I_MACH_CTHREADS */
1751 #      endif /* OS2 */
1752 #    endif /* WIN32 */
1753 #  endif /* FAKE_THREADS */
1754 #endif /* USE_THREADS || USE_ITHREADS */
1755
1756 #ifdef WIN32
1757 #  include "win32.h"
1758 #endif
1759
1760 #ifdef VMS
1761 #   define STATUS_NATIVE        PL_statusvalue_vms
1762 #   define STATUS_NATIVE_EXPORT \
1763         (((I32)PL_statusvalue_vms == -1 ? 44 : PL_statusvalue_vms) | (VMSISH_HUSHED ? 0x10000000 : 0))
1764 #   define STATUS_NATIVE_SET(n)                                         \
1765         STMT_START {                                                    \
1766             PL_statusvalue_vms = (n);                                   \
1767             if ((I32)PL_statusvalue_vms == -1)                          \
1768                 PL_statusvalue = -1;                                    \
1769             else if (PL_statusvalue_vms & STS$M_SUCCESS)                \
1770                 PL_statusvalue = 0;                                     \
1771             else if ((PL_statusvalue_vms & STS$M_SEVERITY) == 0)        \
1772                 PL_statusvalue = 1 << 8;                                \
1773             else                                                        \
1774                 PL_statusvalue = (PL_statusvalue_vms & STS$M_SEVERITY) << 8;    \
1775         } STMT_END
1776 #   define STATUS_POSIX PL_statusvalue
1777 #   ifdef VMSISH_STATUS
1778 #       define STATUS_CURRENT   (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
1779 #   else
1780 #       define STATUS_CURRENT   STATUS_POSIX
1781 #   endif
1782 #   define STATUS_POSIX_SET(n)                          \
1783         STMT_START {                                    \
1784             PL_statusvalue = (n);                               \
1785             if (PL_statusvalue != -1) {                 \
1786                 PL_statusvalue &= 0xFFFF;                       \
1787                 PL_statusvalue_vms = PL_statusvalue ? 44 : 1;   \
1788             }                                           \
1789             else PL_statusvalue_vms = -1;                       \
1790         } STMT_END
1791 #   define STATUS_ALL_SUCCESS   (PL_statusvalue = 0, PL_statusvalue_vms = 1)
1792 #   define STATUS_ALL_FAILURE   (PL_statusvalue = 1, PL_statusvalue_vms = 44)
1793 #else
1794 #   define STATUS_NATIVE        STATUS_POSIX
1795 #   define STATUS_NATIVE_EXPORT STATUS_POSIX
1796 #   define STATUS_NATIVE_SET    STATUS_POSIX_SET
1797 #   define STATUS_POSIX         PL_statusvalue
1798 #   define STATUS_POSIX_SET(n)          \
1799         STMT_START {                    \
1800             PL_statusvalue = (n);               \
1801             if (PL_statusvalue != -1)   \
1802                 PL_statusvalue &= 0xFFFF;       \
1803         } STMT_END
1804 #   define STATUS_CURRENT STATUS_POSIX
1805 #   define STATUS_ALL_SUCCESS   (PL_statusvalue = 0)
1806 #   define STATUS_ALL_FAILURE   (PL_statusvalue = 1)
1807 #endif
1808
1809 /* flags in PL_exit_flags for nature of exit() */
1810 #define PERL_EXIT_EXPECTED      0x01
1811
1812 #ifndef MEMBER_TO_FPTR
1813 #  define MEMBER_TO_FPTR(name)          name
1814 #endif
1815
1816 /* format to use for version numbers in file/directory names */
1817 /* XXX move to Configure? */
1818 #ifndef PERL_FS_VER_FMT
1819 #  define PERL_FS_VER_FMT       "%d.%d.%d"
1820 #endif
1821
1822 /* This defines a way to flush all output buffers.  This may be a
1823  * performance issue, so we allow people to disable it.
1824  */
1825 #ifndef PERL_FLUSHALL_FOR_CHILD
1826 # if defined(FFLUSH_NULL) || defined(USE_SFIO)
1827 #  define PERL_FLUSHALL_FOR_CHILD       PerlIO_flush((PerlIO*)NULL)
1828 # else
1829 #  ifdef FFLUSH_ALL
1830 #   define PERL_FLUSHALL_FOR_CHILD      my_fflush_all()
1831 #  else
1832 #   define PERL_FLUSHALL_FOR_CHILD      NOOP
1833 #  endif
1834 # endif
1835 #endif
1836
1837 #ifndef PERL_WAIT_FOR_CHILDREN
1838 #  define PERL_WAIT_FOR_CHILDREN        NOOP
1839 #endif
1840
1841 /* the traditional thread-unsafe notion of "current interpreter". */
1842 #ifndef PERL_SET_INTERP
1843 #  define PERL_SET_INTERP(i)            (PL_curinterp = (PerlInterpreter*)(i))
1844 #endif
1845
1846 #ifndef PERL_GET_INTERP
1847 #  define PERL_GET_INTERP               (PL_curinterp)
1848 #endif
1849
1850 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX)
1851 #  ifdef USE_THREADS
1852 #    define PERL_GET_THX                ((struct perl_thread *)PERL_GET_CONTEXT)
1853 #  else
1854 #  ifdef MULTIPLICITY
1855 #    define PERL_GET_THX                ((PerlInterpreter *)PERL_GET_CONTEXT)
1856 #  else
1857 #  ifdef PERL_OBJECT
1858 #    define PERL_GET_THX                ((CPerlObj *)PERL_GET_CONTEXT)
1859 #  endif
1860 #  endif
1861 #  endif
1862 #  define PERL_SET_THX(t)               PERL_SET_CONTEXT(t)
1863 #endif
1864
1865 #ifndef SVf
1866 #  ifdef CHECK_FORMAT
1867 #    define SVf "p"
1868 #  else
1869 #    define SVf "_"
1870 #  endif
1871 #endif
1872
1873 #ifndef UVf
1874 #  ifdef CHECK_FORMAT
1875 #    define UVf UVuf
1876 #  else
1877 #    define UVf "Vu"
1878 #  endif
1879 #endif
1880
1881 #ifndef VDf
1882 #  ifdef CHECK_FORMAT
1883 #    define VDf "p"
1884 #  else
1885 #    define VDf "vd"
1886 #  endif
1887 #endif
1888
1889 /* Some unistd.h's give a prototype for pause() even though
1890    HAS_PAUSE ends up undefined.  This causes the #define
1891    below to be rejected by the compiler.  Sigh.
1892 */
1893 #ifdef HAS_PAUSE
1894 #define Pause   pause
1895 #else
1896 #define Pause() sleep((32767<<16)+32767)
1897 #endif
1898
1899 #ifndef IOCPARM_LEN
1900 #   ifdef IOCPARM_MASK
1901         /* on BSDish systes we're safe */
1902 #       define IOCPARM_LEN(x)  (((x) >> 16) & IOCPARM_MASK)
1903 #   else
1904         /* otherwise guess at what's safe */
1905 #       define IOCPARM_LEN(x)   256
1906 #   endif
1907 #endif
1908
1909 #if defined(__CYGWIN__) || defined(__MSYS__)
1910 /* USEMYBINMODE
1911  *   This symbol, if defined, indicates that the program should
1912  *   use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
1913  *   that a file is in "binary" mode -- that is, that no translation
1914  *   of bytes occurs on read or write operations.
1915  */
1916 #  define USEMYBINMODE / **/
1917 #  define my_binmode(fp, iotype, mode) \
1918             (PerlLIO_setmode(PerlIO_fileno(fp), mode) != -1 ? TRUE : FALSE)
1919 #endif
1920
1921 #ifdef UNION_ANY_DEFINITION
1922 UNION_ANY_DEFINITION;
1923 #else
1924 union any {
1925     void*       any_ptr;
1926     I32         any_i32;
1927     IV          any_iv;
1928     long        any_long;
1929     void        (*any_dptr) (void*);
1930     void        (*any_dxptr) (pTHXo_ void*);
1931 };
1932 #endif
1933
1934 #ifdef USE_THREADS
1935 #define ARGSproto struct perl_thread *thr
1936 #else
1937 #define ARGSproto
1938 #endif /* USE_THREADS */
1939
1940 typedef I32 (*filter_t) (pTHXo_ int, SV *, int);
1941
1942 #define FILTER_READ(idx, sv, len)  filter_read(idx, sv, len)
1943 #define FILTER_DATA(idx)           (AvARRAY(PL_rsfp_filters)[idx])
1944 #define FILTER_ISREADER(idx)       (idx >= AvFILLp(PL_rsfp_filters))
1945
1946 #if !defined(OS2)
1947 #  include "iperlsys.h"
1948 #endif
1949 #include "regexp.h"
1950 #include "sv.h"
1951 #include "util.h"
1952 #include "form.h"
1953 #include "gv.h"
1954 #include "cv.h"
1955 #include "opnames.h"
1956 #include "op.h"
1957 #include "cop.h"
1958 #include "av.h"
1959 #include "hv.h"
1960 #include "mg.h"
1961 #include "scope.h"
1962 #include "warnings.h"
1963 #include "utf8.h"
1964
1965 /* Current curly descriptor */
1966 typedef struct curcur CURCUR;
1967 struct curcur {
1968     int         parenfloor;     /* how far back to strip paren data */
1969     int         cur;            /* how many instances of scan we've matched */
1970     int         min;            /* the minimal number of scans to match */
1971     int         max;            /* the maximal number of scans to match */
1972     int         minmod;         /* whether to work our way up or down */
1973     regnode *   scan;           /* the thing to match */
1974     regnode *   next;           /* what has to match after it */
1975     char *      lastloc;        /* where we started matching this scan */
1976     CURCUR *    oldcc;          /* current curly before we started this one */
1977 };
1978
1979 typedef struct _sublex_info SUBLEXINFO;
1980 struct _sublex_info {
1981     I32 super_state;    /* lexer state to save */
1982     I32 sub_inwhat;     /* "lex_inwhat" to use */
1983     OP *sub_op;         /* "lex_op" to use */
1984     char *super_bufptr; /* PL_bufptr that was */
1985     char *super_bufend; /* PL_bufend that was */
1986 };
1987
1988 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */
1989
1990 struct scan_data_t;             /* Used in S_* functions in regcomp.c */
1991 struct regnode_charclass_class; /* Used in S_* functions in regcomp.c */
1992
1993 typedef I32 CHECKPOINT;
1994
1995 struct ptr_tbl_ent {
1996     struct ptr_tbl_ent*         next;
1997     void*                       oldval;
1998     void*                       newval;
1999 };
2000
2001 struct ptr_tbl {
2002     struct ptr_tbl_ent**        tbl_ary;
2003     UV                          tbl_max;
2004     UV                          tbl_items;
2005 };
2006
2007 #if defined(iAPX286) || defined(M_I286) || defined(I80286)
2008 #   define I286
2009 #endif
2010
2011 #if defined(htonl) && !defined(HAS_HTONL)
2012 #define HAS_HTONL
2013 #endif
2014 #if defined(htons) && !defined(HAS_HTONS)
2015 #define HAS_HTONS
2016 #endif
2017 #if defined(ntohl) && !defined(HAS_NTOHL)
2018 #define HAS_NTOHL
2019 #endif
2020 #if defined(ntohs) && !defined(HAS_NTOHS)
2021 #define HAS_NTOHS
2022 #endif
2023 #ifndef HAS_HTONL
2024 #if (BYTEORDER & 0xffff) != 0x4321
2025 #define HAS_HTONS
2026 #define HAS_HTONL
2027 #define HAS_NTOHS
2028 #define HAS_NTOHL
2029 #define MYSWAP
2030 #define htons my_swap
2031 #define htonl my_htonl
2032 #define ntohs my_swap
2033 #define ntohl my_ntohl
2034 #endif
2035 #else
2036 #if (BYTEORDER & 0xffff) == 0x4321
2037 #undef HAS_HTONS
2038 #undef HAS_HTONL
2039 #undef HAS_NTOHS
2040 #undef HAS_NTOHL
2041 #endif
2042 #endif
2043
2044 /*
2045  * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
2046  * -DWS
2047  */
2048 #if BYTEORDER != 0x1234
2049 # define HAS_VTOHL
2050 # define HAS_VTOHS
2051 # define HAS_HTOVL
2052 # define HAS_HTOVS
2053 # if BYTEORDER == 0x4321 || BYTEORDER == 0x87654321
2054 #  define vtohl(x)      ((((x)&0xFF)<<24)       \
2055                         +(((x)>>24)&0xFF)       \
2056                         +(((x)&0x0000FF00)<<8)  \
2057                         +(((x)&0x00FF0000)>>8)  )
2058 #  define vtohs(x)      ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
2059 #  define htovl(x)      vtohl(x)
2060 #  define htovs(x)      vtohs(x)
2061 # endif
2062         /* otherwise default to functions in util.c */
2063 #endif
2064
2065 #ifdef CASTNEGFLOAT
2066 #define U_S(what) ((U16)(what))
2067 #define U_I(what) ((unsigned int)(what))
2068 #define U_L(what) ((U32)(what))
2069 #else
2070 #define U_S(what) ((U16)cast_ulong((NV)(what)))
2071 #define U_I(what) ((unsigned int)cast_ulong((NV)(what)))
2072 #define U_L(what) (cast_ulong((NV)(what)))
2073 #endif
2074
2075 #ifdef CASTI32
2076 #define I_32(what) ((I32)(what))
2077 #define I_V(what) ((IV)(what))
2078 #define U_V(what) ((UV)(what))
2079 #else
2080 #define I_32(what) (cast_i32((NV)(what)))
2081 #define I_V(what) (cast_iv((NV)(what)))
2082 #define U_V(what) (cast_uv((NV)(what)))
2083 #endif
2084
2085 /* These do not care about the fractional part, only about the range. */
2086 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX)
2087 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX)
2088
2089 /* Used with UV/IV arguments: */
2090                                         /* XXXX: need to speed it up */
2091 #define CLUMP_2UV(iv)   ((iv) < 0 ? 0 : (UV)(iv))
2092 #define CLUMP_2IV(uv)   ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv))
2093
2094 #ifndef MAXSYSFD
2095 #   define MAXSYSFD 2
2096 #endif
2097
2098 #ifndef __cplusplus
2099 Uid_t getuid (void);
2100 Uid_t geteuid (void);
2101 Gid_t getgid (void);
2102 Gid_t getegid (void);
2103 #endif
2104
2105 #ifndef Perl_debug_log
2106 #  define Perl_debug_log        PerlIO_stderr()
2107 #endif
2108
2109 #ifndef Perl_error_log
2110 #  define Perl_error_log        (PL_stderrgv                    \
2111                                  && GvIOp(PL_stderrgv)          \
2112                                  && IoOFP(GvIOp(PL_stderrgv))   \
2113                                  ? IoOFP(GvIOp(PL_stderrgv))    \
2114                                  : PerlIO_stderr())
2115 #endif
2116
2117 #ifdef DEBUGGING
2118 #undef  YYDEBUG
2119 #define YYDEBUG 1
2120 #define DEB(a)                          a
2121 #define DEBUG(a)   if (PL_debug)                a
2122 #define DEBUG_p(a) if (PL_debug & 1)    a
2123 #define DEBUG_s(a) if (PL_debug & 2)    a
2124 #define DEBUG_l(a) if (PL_debug & 4)    a
2125 #define DEBUG_t(a) if (PL_debug & 8)    a
2126 #define DEBUG_o(a) if (PL_debug & 16)   a
2127 #define DEBUG_c(a) if (PL_debug & 32)   a
2128 #define DEBUG_P(a) if (PL_debug & 64)   a
2129 #  if defined(PERL_OBJECT)
2130 #    define DEBUG_m(a) if (PL_debug & 128)      a
2131 #  else
2132      /* Temporarily turn off memory debugging in case the a
2133       * does memory allocation, either directly or indirectly. */
2134 #    define DEBUG_m(a)  \
2135     STMT_START {                                                        \
2136         if (PERL_GET_INTERP) { dTHX; if (PL_debug & 128) {PL_debug&=~128; a; PL_debug|=128;} } \
2137     } STMT_END
2138 #  endif
2139 #define DEBUG_f(a) if (PL_debug & 256)  a
2140 #define DEBUG_r(a) if (PL_debug & 512)  a
2141 #define DEBUG_x(a) if (PL_debug & 1024) a
2142 #define DEBUG_u(a) if (PL_debug & 2048) a
2143 #define DEBUG_L(a) if (PL_debug & 4096) a
2144 #define DEBUG_H(a) if (PL_debug & 8192) a
2145 #define DEBUG_X(a) if (PL_debug & 16384)        a
2146 #define DEBUG_D(a) if (PL_debug & 32768)        a
2147 #  ifdef USE_THREADS
2148 #    define DEBUG_S(a) if (PL_debug & (1<<16))  a
2149 #  else
2150 #    define DEBUG_S(a)
2151 #  endif
2152 #define DEBUG_T(a) if (PL_debug & (1<<17))      a
2153 #else
2154 #define DEB(a)
2155 #define DEBUG(a)
2156 #define DEBUG_p(a)
2157 #define DEBUG_s(a)
2158 #define DEBUG_l(a)
2159 #define DEBUG_t(a)
2160 #define DEBUG_o(a)
2161 #define DEBUG_c(a)
2162 #define DEBUG_P(a)
2163 #define DEBUG_m(a)
2164 #define DEBUG_f(a)
2165 #define DEBUG_r(a)
2166 #define DEBUG_x(a)
2167 #define DEBUG_u(a)
2168 #define DEBUG_S(a)
2169 #define DEBUG_H(a)
2170 #define DEBUG_X(a)
2171 #define DEBUG_D(a)
2172 #define DEBUG_S(a)
2173 #define DEBUG_T(a)
2174 #endif
2175 #define YYMAXDEPTH 300
2176
2177 #ifndef assert  /* <assert.h> might have been included somehow */
2178 #define assert(what)    DEB( {                                          \
2179         if (!(what)) {                                                  \
2180             Perl_croak(aTHX_ "Assertion failed: file \"%s\", line %d",  \
2181                 __FILE__, __LINE__);                                    \
2182             PerlProc_exit(1);                                           \
2183         }})
2184 #endif
2185
2186 struct ufuncs {
2187     I32 (*uf_val)(IV, SV*);
2188     I32 (*uf_set)(IV, SV*);
2189     IV uf_index;
2190 };
2191
2192 /* Fix these up for __STDC__ */
2193 #ifndef DONT_DECLARE_STD
2194 char *mktemp (char*);
2195 #ifndef atof
2196 double atof (const char*);
2197 #endif
2198 #endif
2199
2200 #ifndef STANDARD_C
2201 /* All of these are in stdlib.h or time.h for ANSI C */
2202 Time_t time();
2203 struct tm *gmtime(), *localtime();
2204 #if defined(OEMVS) || defined(__OPEN_VM)
2205 char *(strchr)(), *(strrchr)();
2206 char *(strcpy)(), *(strcat)();
2207 #else
2208 char *strchr(), *strrchr();
2209 char *strcpy(), *strcat();
2210 #endif
2211 #endif /* ! STANDARD_C */
2212
2213
2214 #ifdef I_MATH
2215 #    include <math.h>
2216 #else
2217 START_EXTERN_C
2218             double exp (double);
2219             double log (double);
2220             double log10 (double);
2221             double sqrt (double);
2222             double frexp (double,int*);
2223             double ldexp (double,int);
2224             double modf (double,double*);
2225             double sin (double);
2226             double cos (double);
2227             double atan2 (double,double);
2228             double pow (double,double);
2229 END_EXTERN_C
2230 #endif
2231
2232 #ifndef __cplusplus
2233 #  if defined(NeXT) || defined(__NeXT__) /* or whatever catches all NeXTs */
2234 char *crypt ();       /* Maybe more hosts will need the unprototyped version */
2235 #  else
2236 #    if !defined(WIN32)
2237 char *crypt (const char*, const char*);
2238 #    endif /* !WIN32 */
2239 #  endif /* !NeXT && !__NeXT__ */
2240 #  ifndef DONT_DECLARE_STD
2241 #    ifndef getenv
2242 char *getenv (const char*);
2243 #    endif /* !getenv */
2244 #    if !defined(HAS_LSEEK_PROTO) && !defined(EPOC) && !defined(__hpux)
2245 #      ifdef _FILE_OFFSET_BITS
2246 #        if _FILE_OFFSET_BITS == 64
2247 Off_t lseek (int,Off_t,int);
2248 #        endif
2249 #      endif
2250 #    endif
2251 #  endif /* !DONT_DECLARE_STD */
2252 char *getlogin (void);
2253 #endif /* !__cplusplus */
2254
2255 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
2256 #define UNLINK unlnk
2257 I32 unlnk (char*);
2258 #else
2259 #define UNLINK PerlLIO_unlink
2260 #endif
2261
2262 #ifndef HAS_SETREUID
2263 #  ifdef HAS_SETRESUID
2264 #    define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
2265 #    define HAS_SETREUID
2266 #  endif
2267 #endif
2268 #ifndef HAS_SETREGID
2269 #  ifdef HAS_SETRESGID
2270 #    define setregid(r,e) setresgid(r,e,(Gid_t)-1)
2271 #    define HAS_SETREGID
2272 #  endif
2273 #endif
2274
2275 /* Sighandler_t defined in iperlsys.h */
2276
2277 #ifdef HAS_SIGACTION
2278 typedef struct sigaction Sigsave_t;
2279 #else
2280 typedef Sighandler_t Sigsave_t;
2281 #endif
2282
2283 #define SCAN_DEF 0
2284 #define SCAN_TR 1
2285 #define SCAN_REPL 2
2286
2287 #ifdef DEBUGGING
2288 # ifndef register
2289 #  define register
2290 # endif
2291 # define PAD_SV(po) pad_sv(po)
2292 # define RUNOPS_DEFAULT Perl_runops_debug
2293 #else
2294 # define PAD_SV(po) PL_curpad[po]
2295 # define RUNOPS_DEFAULT Perl_runops_standard
2296 #endif
2297
2298 #ifdef MYMALLOC
2299 #  ifdef MUTEX_INIT_CALLS_MALLOC
2300 #    define MALLOC_INIT                                 \
2301         STMT_START {                                    \
2302                 PL_malloc_mutex = NULL;                 \
2303                 MUTEX_INIT(&PL_malloc_mutex);           \
2304         } STMT_END
2305 #    define MALLOC_TERM                                 \
2306         STMT_START {                                    \
2307                 perl_mutex tmp = PL_malloc_mutex;       \
2308                 PL_malloc_mutex = NULL;                 \
2309                 MUTEX_DESTROY(&tmp);                    \
2310         } STMT_END
2311 #  else
2312 #    define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex)
2313 #    define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex)
2314 #  endif
2315 #else
2316 #  define MALLOC_INIT
2317 #  define MALLOC_TERM
2318 #endif
2319
2320
2321 typedef int (CPERLscope(*runops_proc_t)) (pTHX);
2322 typedef OP* (CPERLscope(*PPADDR_t)[]) (pTHX);
2323
2324 /* _ (for $_) must be first in the following list (DEFSV requires it) */
2325 #define THREADSV_NAMES "_123456789&`'+/.,\\\";^-%=|~:\001\005!@"
2326
2327 /* NeXT has problems with crt0.o globals */
2328 #if defined(__DYNAMIC__) && \
2329     (defined(NeXT) || defined(__NeXT__) || defined(__APPLE__))
2330 #  if defined(NeXT) || defined(__NeXT)
2331 #    include <mach-o/dyld.h>
2332 #    define environ (*environ_pointer)
2333 EXT char *** environ_pointer;
2334 #  else
2335 #    if defined(__APPLE__) && defined(PERL_CORE)
2336 #      include <crt_externs.h>  /* for the env array */
2337 #      define environ (*_NSGetEnviron())
2338 #    endif
2339 #  endif
2340 #else
2341    /* VMS and some other platforms don't use the environ array */
2342 #  ifdef USE_ENVIRON_ARRAY
2343 #    if !defined(DONT_DECLARE_STD) || \
2344         (defined(__svr4__) && defined(__GNUC__) && defined(sun)) || \
2345         defined(__sgi) || \
2346         defined(__DGUX)
2347 extern char **  environ;        /* environment variables supplied via exec */
2348 #    endif
2349 #  endif
2350 #endif
2351
2352 START_EXTERN_C
2353
2354 /* handy constants */
2355 EXTCONST char PL_warn_uninit[]
2356   INIT("Use of uninitialized value%s%s");
2357 EXTCONST char PL_warn_nosemi[]
2358   INIT("Semicolon seems to be missing");
2359 EXTCONST char PL_warn_reserved[]
2360   INIT("Unquoted string \"%s\" may clash with future reserved word");
2361 EXTCONST char PL_warn_nl[]
2362   INIT("Unsuccessful %s on filename containing newline");
2363 EXTCONST char PL_no_wrongref[]
2364   INIT("Can't use %s ref as %s ref");
2365 EXTCONST char PL_no_symref[]
2366   INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
2367 EXTCONST char PL_no_usym[]
2368   INIT("Can't use an undefined value as %s reference");
2369 EXTCONST char PL_no_aelem[]
2370   INIT("Modification of non-creatable array value attempted, subscript %d");
2371 EXTCONST char PL_no_helem[]
2372   INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
2373 EXTCONST char PL_no_modify[]
2374   INIT("Modification of a read-only value attempted");
2375 EXTCONST char PL_no_mem[]
2376   INIT("Out of memory!\n");
2377 EXTCONST char PL_no_security[]
2378   INIT("Insecure dependency in %s%s");
2379 EXTCONST char PL_no_sock_func[]
2380   INIT("Unsupported socket function \"%s\" called");
2381 EXTCONST char PL_no_dir_func[]
2382   INIT("Unsupported directory function \"%s\" called");
2383 EXTCONST char PL_no_func[]
2384   INIT("The %s function is unimplemented");
2385 EXTCONST char PL_no_myglob[]
2386   INIT("\"my\" variable %s can't be in a package");
2387
2388 EXTCONST char PL_uuemap[65]
2389   INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_");
2390
2391
2392 #ifdef DOINIT
2393 EXT char *PL_sig_name[] = { SIG_NAME };
2394 EXT int   PL_sig_num[]  = { SIG_NUM };
2395 #else
2396 EXT char *PL_sig_name[];
2397 EXT int   PL_sig_num[];
2398 #endif
2399
2400 /* fast case folding tables */
2401
2402 #ifdef DOINIT
2403 #ifdef EBCDIC
2404 EXT unsigned char PL_fold[] = { /* fast EBCDIC case folding table */
2405     0,      1,      2,      3,      4,      5,      6,      7,
2406     8,      9,      10,     11,     12,     13,     14,     15,
2407     16,     17,     18,     19,     20,     21,     22,     23,
2408     24,     25,     26,     27,     28,     29,     30,     31,
2409     32,     33,     34,     35,     36,     37,     38,     39,
2410     40,     41,     42,     43,     44,     45,     46,     47,
2411     48,     49,     50,     51,     52,     53,     54,     55,
2412     56,     57,     58,     59,     60,     61,     62,     63,
2413     64,     65,     66,     67,     68,     69,     70,     71,
2414     72,     73,     74,     75,     76,     77,     78,     79,
2415     80,     81,     82,     83,     84,     85,     86,     87,
2416     88,     89,     90,     91,     92,     93,     94,     95,
2417     96,     97,     98,     99,     100,    101,    102,    103,
2418     104,    105,    106,    107,    108,    109,    110,    111,
2419     112,    113,    114,    115,    116,    117,    118,    119,
2420     120,    121,    122,    123,    124,    125,    126,    127,
2421     128,    'A',    'B',    'C',    'D',    'E',    'F',    'G',
2422     'H',    'I',    138,    139,    140,    141,    142,    143,
2423     144,    'J',    'K',    'L',    'M',    'N',    'O',    'P',
2424     'Q',    'R',    154,    155,    156,    157,    158,    159,
2425     160,    161,    'S',    'T',    'U',    'V',    'W',    'X',
2426     'Y',    'Z',    170,    171,    172,    173,    174,    175,
2427     176,    177,    178,    179,    180,    181,    182,    183,
2428     184,    185,    186,    187,    188,    189,    190,    191,
2429     192,    'a',    'b',    'c',    'd',    'e',    'f',    'g',
2430     'h',    'i',    202,    203,    204,    205,    206,    207,
2431     208,    'j',    'k',    'l',    'm',    'n',    'o',    'p',
2432     'q',    'r',    218,    219,    220,    221,    222,    223,
2433     224,    225,    's',    't',    'u',    'v',    'w',    'x',
2434     'y',    'z',    234,    235,    236,    237,    238,    239,
2435     240,    241,    242,    243,    244,    245,    246,    247,
2436     248,    249,    250,    251,    252,    253,    254,    255
2437 };
2438 #else   /* ascii rather than ebcdic */
2439 EXTCONST  unsigned char PL_fold[] = {
2440         0,      1,      2,      3,      4,      5,      6,      7,
2441         8,      9,      10,     11,     12,     13,     14,     15,
2442         16,     17,     18,     19,     20,     21,     22,     23,
2443         24,     25,     26,     27,     28,     29,     30,     31,
2444         32,     33,     34,     35,     36,     37,     38,     39,
2445         40,     41,     42,     43,     44,     45,     46,     47,
2446         48,     49,     50,     51,     52,     53,     54,     55,
2447         56,     57,     58,     59,     60,     61,     62,     63,
2448         64,     'a',    'b',    'c',    'd',    'e',    'f',    'g',
2449         'h',    'i',    'j',    'k',    'l',    'm',    'n',    'o',
2450         'p',    'q',    'r',    's',    't',    'u',    'v',    'w',
2451         'x',    'y',    'z',    91,     92,     93,     94,     95,
2452         96,     'A',    'B',    'C',    'D',    'E',    'F',    'G',
2453         'H',    'I',    'J',    'K',    'L',    'M',    'N',    'O',
2454         'P',    'Q',    'R',    'S',    'T',    'U',    'V',    'W',
2455         'X',    'Y',    'Z',    123,    124,    125,    126,    127,
2456         128,    129,    130,    131,    132,    133,    134,    135,
2457         136,    137,    138,    139,    140,    141,    142,    143,
2458         144,    145,    146,    147,    148,    149,    150,    151,
2459         152,    153,    154,    155,    156,    157,    158,    159,
2460         160,    161,    162,    163,    164,    165,    166,    167,
2461         168,    169,    170,    171,    172,    173,    174,    175,
2462         176,    177,    178,    179,    180,    181,    182,    183,
2463         184,    185,    186,    187,    188,    189,    190,    191,
2464         192,    193,    194,    195,    196,    197,    198,    199,
2465         200,    201,    202,    203,    204,    205,    206,    207,
2466         208,    209,    210,    211,    212,    213,    214,    215,
2467         216,    217,    218,    219,    220,    221,    222,    223,
2468         224,    225,    226,    227,    228,    229,    230,    231,
2469         232,    233,    234,    235,    236,    237,    238,    239,
2470         240,    241,    242,    243,    244,    245,    246,    247,
2471         248,    249,    250,    251,    252,    253,    254,    255
2472 };
2473 #endif  /* !EBCDIC */
2474 #else
2475 EXTCONST unsigned char PL_fold[];
2476 #endif
2477
2478 #ifdef DOINIT
2479 EXT unsigned char PL_fold_locale[] = {
2480         0,      1,      2,      3,      4,      5,      6,      7,
2481         8,      9,      10,     11,     12,     13,     14,     15,
2482         16,     17,     18,     19,     20,     21,     22,     23,
2483         24,     25,     26,     27,     28,     29,     30,     31,
2484         32,     33,     34,     35,     36,     37,     38,     39,
2485         40,     41,     42,     43,     44,     45,     46,     47,
2486         48,     49,     50,     51,     52,     53,     54,     55,
2487         56,     57,     58,     59,     60,     61,     62,     63,
2488         64,     'a',    'b',    'c',    'd',    'e',    'f',    'g',
2489         'h',    'i',    'j',    'k',    'l',    'm',    'n',    'o',
2490         'p',    'q',    'r',    's',    't',    'u',    'v',    'w',
2491         'x',    'y',    'z',    91,     92,     93,     94,     95,
2492         96,     'A',    'B',    'C',    'D',    'E',    'F',    'G',
2493         'H',    'I',    'J',    'K',    'L',    'M',    'N',    'O',
2494         'P',    'Q',    'R',    'S',    'T',    'U',    'V',    'W',
2495         'X',    'Y',    'Z',    123,    124,    125,    126,    127,
2496         128,    129,    130,    131,    132,    133,    134,    135,
2497         136,    137,    138,    139,    140,    141,    142,    143,
2498         144,    145,    146,    147,    148,    149,    150,    151,
2499         152,    153,    154,    155,    156,    157,    158,    159,
2500         160,    161,    162,    163,    164,    165,    166,    167,
2501         168,    169,    170,    171,    172,    173,    174,    175,
2502         176,    177,    178,    179,    180,    181,    182,    183,
2503         184,    185,    186,    187,    188,    189,    190,    191,
2504         192,    193,    194,    195,    196,    197,    198,    199,
2505         200,    201,    202,    203,    204,    205,    206,    207,
2506         208,    209,    210,    211,    212,    213,    214,    215,
2507         216,    217,    218,    219,    220,    221,    222,    223,
2508         224,    225,    226,    227,    228,    229,    230,    231,
2509         232,    233,    234,    235,    236,    237,    238,    239,
2510         240,    241,    242,    243,    244,    245,    246,    247,
2511         248,    249,    250,    251,    252,    253,    254,    255
2512 };
2513 #else
2514 EXT unsigned char PL_fold_locale[];
2515 #endif
2516
2517 #ifdef DOINIT
2518 #ifdef EBCDIC
2519 EXT unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */
2520     1,      2,      84,     151,    154,    155,    156,    157,
2521     165,    246,    250,    3,      158,    7,      18,     29,
2522     40,     51,     62,     73,     85,     96,     107,    118,
2523     129,    140,    147,    148,    149,    150,    152,    153,
2524     255,      6,      8,      9,     10,     11,     12,     13,
2525      14,     15,     24,     25,     26,     27,     28,    226,
2526      29,     30,     31,     32,     33,     43,     44,     45,
2527      46,     47,     48,     49,     50,     76,     77,     78,
2528      79,     80,     81,     82,     83,     84,     85,     86,
2529      87,     94,     95,    234,    181,    233,    187,    190,
2530     180,     96,     97,     98,     99,    100,    101,    102,
2531     104,    112,    182,    174,    236,    232,    229,    103,
2532     228,    226,    114,    115,    116,    117,    118,    119,
2533     120,    121,    122,    235,    176,    230,    194,    162,
2534     130,    131,    132,    133,    134,    135,    136,    137,
2535     138,    139,    201,    205,    163,    217,    220,    224,
2536     5,      248,    227,    244,    242,    255,    241,    231,
2537     240,    253,    16,     197,    19,     20,     21,     187,
2538     23,     169,    210,    245,    237,    249,    247,    239,
2539     168,    252,    34,     196,    36,     37,     38,     39,
2540     41,     42,     251,    254,    238,    223,    221,    213,
2541     225,    177,    52,     53,     54,     55,     56,     57,
2542     58,     59,     60,     61,     63,     64,     65,     66,
2543     67,     68,     69,     70,     71,     72,     74,     75,
2544     205,    208,    186,    202,    200,    218,    198,    179,
2545     178,    214,    88,     89,     90,     91,     92,     93,
2546     217,    166,    170,    207,    199,    209,    206,    204,
2547     160,    212,    105,    106,    108,    109,    110,    111,
2548     203,    113,    216,    215,    192,    175,    193,    243,
2549     172,    161,    123,    124,    125,    126,    127,    128,
2550     222,    219,    211,    195,    188,    193,    185,    184,
2551     191,    183,    141,    142,    143,    144,    145,    146
2552 };
2553 #else  /* ascii rather than ebcdic */
2554 EXTCONST unsigned char PL_freq[] = {    /* letter frequencies for mixed English/C */
2555         1,      2,      84,     151,    154,    155,    156,    157,
2556         165,    246,    250,    3,      158,    7,      18,     29,
2557         40,     51,     62,     73,     85,     96,     107,    118,
2558         129,    140,    147,    148,    149,    150,    152,    153,
2559         255,    182,    224,    205,    174,    176,    180,    217,
2560         233,    232,    236,    187,    235,    228,    234,    226,
2561         222,    219,    211,    195,    188,    193,    185,    184,
2562         191,    183,    201,    229,    181,    220,    194,    162,
2563         163,    208,    186,    202,    200,    218,    198,    179,
2564         178,    214,    166,    170,    207,    199,    209,    206,
2565         204,    160,    212,    216,    215,    192,    175,    173,
2566         243,    172,    161,    190,    203,    189,    164,    230,
2567         167,    248,    227,    244,    242,    255,    241,    231,
2568         240,    253,    169,    210,    245,    237,    249,    247,
2569         239,    168,    252,    251,    254,    238,    223,    221,
2570         213,    225,    177,    197,    171,    196,    159,    4,
2571         5,      6,      8,      9,      10,     11,     12,     13,
2572         14,     15,     16,     17,     19,     20,     21,     22,
2573         23,     24,     25,     26,     27,     28,     30,     31,
2574         32,     33,     34,     35,     36,     37,     38,     39,
2575         41,     42,     43,     44,     45,     46,     47,     48,
2576         49,     50,     52,     53,     54,     55,     56,     57,
2577         58,     59,     60,     61,     63,     64,     65,     66,
2578         67,     68,     69,     70,     71,     72,     74,     75,
2579         76,     77,     78,     79,     80,     81,     82,     83,
2580         86,     87,     88,     89,     90,     91,     92,     93,
2581         94,     95,     97,     98,     99,     100,    101,    102,
2582         103,    104,    105,    106,    108,    109,    110,    111,
2583         112,    113,    114,    115,    116,    117,    119,    120,
2584         121,    122,    123,    124,    125,    126,    127,    128,
2585         130,    131,    132,    133,    134,    135,    136,    137,
2586         138,    139,    141,    142,    143,    144,    145,    146
2587 };
2588 #endif
2589 #else
2590 EXTCONST unsigned char PL_freq[];
2591 #endif
2592
2593 #ifdef DEBUGGING
2594 #ifdef DOINIT
2595 EXTCONST char* PL_block_type[] = {
2596         "NULL",
2597         "SUB",
2598         "EVAL",
2599         "LOOP",
2600         "SUBST",
2601         "BLOCK",
2602 };
2603 #else
2604 EXTCONST char* PL_block_type[];
2605 #endif
2606 #endif
2607
2608 END_EXTERN_C
2609
2610 /*****************************************************************************/
2611 /* This lexer/parser stuff is currently global since yacc is hard to reenter */
2612 /*****************************************************************************/
2613 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
2614
2615 #include "perly.h"
2616
2617 #define LEX_NOTPARSING          11      /* borrowed from toke.c */
2618
2619 typedef enum {
2620     XOPERATOR,
2621     XTERM,
2622     XREF,
2623     XSTATE,
2624     XBLOCK,
2625     XATTRBLOCK,
2626     XATTRTERM,
2627     XTERMBLOCK
2628 } expectation;
2629
2630 enum {          /* pass one of these to get_vtbl */
2631     want_vtbl_sv,
2632     want_vtbl_env,
2633     want_vtbl_envelem,
2634     want_vtbl_sig,
2635     want_vtbl_sigelem,
2636     want_vtbl_pack,
2637     want_vtbl_packelem,
2638     want_vtbl_dbline,
2639     want_vtbl_isa,
2640     want_vtbl_isaelem,
2641     want_vtbl_arylen,
2642     want_vtbl_glob,
2643     want_vtbl_mglob,
2644     want_vtbl_nkeys,
2645     want_vtbl_taint,
2646     want_vtbl_substr,
2647     want_vtbl_vec,
2648     want_vtbl_pos,
2649     want_vtbl_bm,
2650     want_vtbl_fm,
2651     want_vtbl_uvar,
2652     want_vtbl_defelem,
2653     want_vtbl_regexp,
2654     want_vtbl_collxfrm,
2655     want_vtbl_amagic,
2656     want_vtbl_amagicelem,
2657 #ifdef USE_THREADS
2658     want_vtbl_mutex,
2659 #endif
2660     want_vtbl_regdata,
2661     want_vtbl_regdatum,
2662     want_vtbl_backref
2663 };
2664
2665                                 /* Note: the lowest 8 bits are reserved for
2666                                    stuffing into op->op_private */
2667 #define HINT_PRIVATE_MASK       0x000000ff
2668 #define HINT_INTEGER            0x00000001
2669 #define HINT_STRICT_REFS        0x00000002
2670 #define HINT_LOCALE             0x00000004
2671 #define HINT_BYTE               0x00000008
2672 /* #define HINT_notused10       0x00000010 */
2673                                 /* Note: 20,40,80 used for NATIVE_HINTS */
2674
2675 #define HINT_BLOCK_SCOPE        0x00000100
2676 #define HINT_STRICT_SUBS        0x00000200
2677 #define HINT_STRICT_VARS        0x00000400
2678
2679 #define HINT_NEW_INTEGER        0x00001000
2680 #define HINT_NEW_FLOAT          0x00002000
2681 #define HINT_NEW_BINARY         0x00004000
2682 #define HINT_NEW_STRING         0x00008000
2683 #define HINT_NEW_RE             0x00010000
2684 #define HINT_LOCALIZE_HH        0x00020000 /* %^H needs to be copied */
2685
2686 #define HINT_RE_TAINT           0x00100000
2687 #define HINT_RE_EVAL            0x00200000
2688
2689 #define HINT_FILETEST_ACCESS    0x00400000
2690 #define HINT_UTF8               0x00800000
2691
2692 /* Various states of an input record separator SV (rs, nrs) */
2693 #define RsSNARF(sv)   (! SvOK(sv))
2694 #define RsSIMPLE(sv)  (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv)))
2695 #define RsPARA(sv)    (SvPOK(sv) && ! SvCUR(sv))
2696 #define RsRECORD(sv)  (SvROK(sv) && (SvIV(SvRV(sv)) > 0))
2697
2698 /* Enable variables which are pointers to functions */
2699 typedef regexp*(CPERLscope(*regcomp_t)) (pTHX_ char* exp, char* xend, PMOP* pm);
2700 typedef I32 (CPERLscope(*regexec_t)) (pTHX_ regexp* prog, char* stringarg,
2701                                       char* strend, char* strbeg, I32 minend,
2702                                       SV* screamer, void* data, U32 flags);
2703 typedef char* (CPERLscope(*re_intuit_start_t)) (pTHX_ regexp *prog, SV *sv,
2704                                                 char *strpos, char *strend,
2705                                                 U32 flags,
2706                                                 struct re_scream_pos_data_s *d);
2707 typedef SV*     (CPERLscope(*re_intuit_string_t)) (pTHX_ regexp *prog);
2708 typedef void    (CPERLscope(*regfree_t)) (pTHX_ struct regexp* r);
2709
2710 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*);
2711 typedef void (*DESTRUCTORFUNC_t) (pTHXo_ void*);
2712 typedef void (*SVFUNC_t) (pTHXo_ SV*);
2713 typedef I32  (*SVCOMPARE_t) (pTHXo_ SV*, SV*);
2714 typedef void (*XSINIT_t) (pTHXo);
2715 typedef void (*ATEXIT_t) (pTHXo_ void*);
2716 typedef void (*XSUBADDR_t) (pTHXo_ CV *);
2717
2718 /* Set up PERLVAR macros for populating structs */
2719 #define PERLVAR(var,type) type var;
2720 #define PERLVARA(var,n,type) type var[n];
2721 #define PERLVARI(var,type,init) type var;
2722 #define PERLVARIC(var,type,init) type var;
2723
2724 /* Interpreter exitlist entry */
2725 typedef struct exitlistentry {
2726     void (*fn) (pTHXo_ void*);
2727     void *ptr;
2728 } PerlExitListEntry;
2729
2730 #ifdef PERL_GLOBAL_STRUCT
2731 struct perl_vars {
2732 #  include "perlvars.h"
2733 };
2734
2735 #  ifdef PERL_CORE
2736 EXT struct perl_vars PL_Vars;
2737 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars);
2738 #  else /* PERL_CORE */
2739 #    if !defined(__GNUC__) || !defined(WIN32)
2740 EXT
2741 #    endif /* WIN32 */
2742 struct perl_vars *PL_VarsPtr;
2743 #    define PL_Vars (*((PL_VarsPtr) \
2744                        ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX))))
2745 #  endif /* PERL_CORE */
2746 #endif /* PERL_GLOBAL_STRUCT */
2747
2748 #if defined(MULTIPLICITY) || defined(PERL_OBJECT)
2749 /* If we have multiple interpreters define a struct
2750    holding variables which must be per-interpreter
2751    If we don't have threads anything that would have
2752    be per-thread is per-interpreter.
2753 */
2754
2755 struct interpreter {
2756 #  ifndef USE_THREADS
2757 #    include "thrdvar.h"
2758 #  endif
2759 #  include "intrpvar.h"
2760 /*
2761  * The following is a buffer where new variables must
2762  * be defined to maintain binary compatibility with PERL_OBJECT
2763  */
2764 PERLVARA(object_compatibility,30,       char)
2765 };
2766
2767 #else
2768 struct interpreter {
2769     char broiled;
2770 };
2771 #endif /* MULTIPLICITY || PERL_OBJECT */
2772
2773 #ifdef USE_THREADS
2774 /* If we have threads define a struct with all the variables
2775  * that have to be per-thread
2776  */
2777
2778
2779 struct perl_thread {
2780 #include "thrdvar.h"
2781 };
2782
2783 typedef struct perl_thread *Thread;
2784
2785 #else
2786 typedef void *Thread;
2787 #endif
2788
2789 /* Done with PERLVAR macros for now ... */
2790 #undef PERLVAR
2791 #undef PERLVARA
2792 #undef PERLVARI
2793 #undef PERLVARIC
2794
2795 #include "thread.h"
2796 #include "pp.h"
2797
2798 #ifndef PERL_CALLCONV
2799 #  define PERL_CALLCONV
2800 #endif
2801
2802 #ifndef NEXT30_NO_ATTRIBUTE
2803 #  ifndef HASATTRIBUTE       /* disable GNU-cc attribute checking? */
2804 #    ifdef  __attribute__      /* Avoid possible redefinition errors */
2805 #      undef  __attribute__
2806 #    endif
2807 #    define __attribute__(attr)
2808 #  endif
2809 #endif
2810
2811 #ifdef PERL_OBJECT
2812 #  define PERL_DECL_PROT
2813 #endif
2814
2815 #undef PERL_CKDEF
2816 #undef PERL_PPDEF
2817 #define PERL_CKDEF(s)   OP *s (pTHX_ OP *o);
2818 #define PERL_PPDEF(s)   OP *s (pTHX);
2819
2820 #include "proto.h"
2821
2822 #ifdef PERL_OBJECT
2823 #  undef PERL_DECL_PROT
2824 #endif
2825
2826 #ifndef PERL_OBJECT
2827 /* this has structure inits, so it cannot be included before here */
2828 #  include "opcode.h"
2829 #endif
2830
2831 /* The following must follow proto.h as #defines mess up syntax */
2832
2833 #if !defined(PERL_FOR_X2P)
2834 #  include "embedvar.h"
2835 #endif
2836
2837 /* Now include all the 'global' variables
2838  * If we don't have threads or multiple interpreters
2839  * these include variables that would have been their struct-s
2840  */
2841
2842 #define PERLVAR(var,type) EXT type PL_##var;
2843 #define PERLVARA(var,n,type) EXT type PL_##var[n];
2844 #define PERLVARI(var,type,init) EXT type  PL_##var INIT(init);
2845 #define PERLVARIC(var,type,init) EXTCONST type PL_##var INIT(init);
2846
2847 #if !defined(MULTIPLICITY) && !defined(PERL_OBJECT)
2848 START_EXTERN_C
2849 #  include "intrpvar.h"
2850 #  ifndef USE_THREADS
2851 #    include "thrdvar.h"
2852 #  endif
2853 END_EXTERN_C
2854 #endif
2855
2856 #ifdef PERL_OBJECT
2857 #  include "embed.h"
2858
2859 #  ifdef DOINIT
2860 #    include "INTERN.h"
2861 #  else
2862 #    include "EXTERN.h"
2863 #  endif
2864
2865 /* this has structure inits, so it cannot be included before here */
2866 #  include "opcode.h"
2867
2868 #else
2869 #  if defined(WIN32)
2870 #    include "embed.h"
2871 #  endif
2872 #endif  /* PERL_OBJECT */
2873
2874 #ifndef PERL_GLOBAL_STRUCT
2875 START_EXTERN_C
2876
2877 #  include "perlvars.h"
2878
2879 END_EXTERN_C
2880 #endif
2881
2882 #undef PERLVAR
2883 #undef PERLVARA
2884 #undef PERLVARI
2885 #undef PERLVARIC
2886
2887 START_EXTERN_C
2888
2889 #ifdef DOINIT
2890
2891 EXT MGVTBL PL_vtbl_sv = {MEMBER_TO_FPTR(Perl_magic_get),
2892                                 MEMBER_TO_FPTR(Perl_magic_set),
2893                                         MEMBER_TO_FPTR(Perl_magic_len),
2894                                                 0,      0};
2895 EXT MGVTBL PL_vtbl_env =        {0,     MEMBER_TO_FPTR(Perl_magic_set_all_env),
2896                                 0,      MEMBER_TO_FPTR(Perl_magic_clear_all_env),
2897                                                         0};
2898 EXT MGVTBL PL_vtbl_envelem =    {0,     MEMBER_TO_FPTR(Perl_magic_setenv),
2899                                         0,      MEMBER_TO_FPTR(Perl_magic_clearenv),
2900                                                         0};
2901 EXT MGVTBL PL_vtbl_sig =        {0,     0,               0, 0, 0};
2902 EXT MGVTBL PL_vtbl_sigelem =    {MEMBER_TO_FPTR(Perl_magic_getsig),
2903                                         MEMBER_TO_FPTR(Perl_magic_setsig),
2904                                         0,      MEMBER_TO_FPTR(Perl_magic_clearsig),
2905                                                         0};
2906 EXT MGVTBL PL_vtbl_pack =       {0,     0,      MEMBER_TO_FPTR(Perl_magic_sizepack),    MEMBER_TO_FPTR(Perl_magic_wipepack),
2907                                                         0};
2908 EXT MGVTBL PL_vtbl_packelem =   {MEMBER_TO_FPTR(Perl_magic_getpack),
2909                                 MEMBER_TO_FPTR(Perl_magic_setpack),
2910                                         0,      MEMBER_TO_FPTR(Perl_magic_clearpack),
2911                                                         0};
2912 EXT MGVTBL PL_vtbl_dbline =     {0,     MEMBER_TO_FPTR(Perl_magic_setdbline),
2913                                         0,      0,      0};
2914 EXT MGVTBL PL_vtbl_isa =        {0,     MEMBER_TO_FPTR(Perl_magic_setisa),
2915                                         0,      MEMBER_TO_FPTR(Perl_magic_setisa),
2916                                                         0};
2917 EXT MGVTBL PL_vtbl_isaelem =    {0,     MEMBER_TO_FPTR(Perl_magic_setisa),
2918                                         0,      0,      0};
2919 EXT MGVTBL PL_vtbl_arylen =     {MEMBER_TO_FPTR(Perl_magic_getarylen),
2920                                 MEMBER_TO_FPTR(Perl_magic_setarylen),
2921                                         0,      0,      0};
2922 EXT MGVTBL PL_vtbl_glob =       {MEMBER_TO_FPTR(Perl_magic_getglob),
2923                                 MEMBER_TO_FPTR(Perl_magic_setglob),
2924                                         0,      0,      0};
2925 EXT MGVTBL PL_vtbl_mglob =      {0,     MEMBER_TO_FPTR(Perl_magic_setmglob),
2926                                         0,      0,      0};
2927 EXT MGVTBL PL_vtbl_nkeys =      {MEMBER_TO_FPTR(Perl_magic_getnkeys),
2928                                 MEMBER_TO_FPTR(Perl_magic_setnkeys),
2929                                         0,      0,      0};
2930 EXT MGVTBL PL_vtbl_taint =      {MEMBER_TO_FPTR(Perl_magic_gettaint),MEMBER_TO_FPTR(Perl_magic_settaint),
2931                                         0,      0,      0};
2932 EXT MGVTBL PL_vtbl_substr =     {MEMBER_TO_FPTR(Perl_magic_getsubstr), MEMBER_TO_FPTR(Perl_magic_setsubstr),
2933                                         0,      0,      0};
2934 EXT MGVTBL PL_vtbl_vec =        {MEMBER_TO_FPTR(Perl_magic_getvec),
2935                                 MEMBER_TO_FPTR(Perl_magic_setvec),
2936                                         0,      0,      0};
2937 EXT MGVTBL PL_vtbl_pos =        {MEMBER_TO_FPTR(Perl_magic_getpos),
2938                                 MEMBER_TO_FPTR(Perl_magic_setpos),
2939                                         0,      0,      0};
2940 EXT MGVTBL PL_vtbl_bm = {0,     MEMBER_TO_FPTR(Perl_magic_setbm),
2941                                         0,      0,      0};
2942 EXT MGVTBL PL_vtbl_fm = {0,     MEMBER_TO_FPTR(Perl_magic_setfm),
2943                                         0,      0,      0};
2944 EXT MGVTBL PL_vtbl_uvar =       {MEMBER_TO_FPTR(Perl_magic_getuvar),
2945                                 MEMBER_TO_FPTR(Perl_magic_setuvar),
2946                                         0,      0,      0};
2947 #ifdef USE_THREADS
2948 EXT MGVTBL PL_vtbl_mutex =      {0,     0,      0,      0,      MEMBER_TO_FPTR(Perl_magic_mutexfree)};
2949 #endif /* USE_THREADS */
2950 EXT MGVTBL PL_vtbl_defelem = {MEMBER_TO_FPTR(Perl_magic_getdefelem),MEMBER_TO_FPTR(Perl_magic_setdefelem),
2951                                         0,      0,      0};
2952
2953 EXT MGVTBL PL_vtbl_regexp = {0,0,0,0, MEMBER_TO_FPTR(Perl_magic_freeregexp)};
2954 EXT MGVTBL PL_vtbl_regdata = {0, 0, MEMBER_TO_FPTR(Perl_magic_regdata_cnt), 0, 0};
2955 EXT MGVTBL PL_vtbl_regdatum = {MEMBER_TO_FPTR(Perl_magic_regdatum_get),
2956                                MEMBER_TO_FPTR(Perl_magic_regdatum_set), 0, 0, 0};
2957
2958 #ifdef USE_LOCALE_COLLATE
2959 EXT MGVTBL PL_vtbl_collxfrm = {0,
2960                                 MEMBER_TO_FPTR(Perl_magic_setcollxfrm),
2961                                         0,      0,      0};
2962 #endif
2963
2964 EXT MGVTBL PL_vtbl_amagic =       {0,     MEMBER_TO_FPTR(Perl_magic_setamagic),
2965                                         0,      0,      MEMBER_TO_FPTR(Perl_magic_setamagic)};
2966 EXT MGVTBL PL_vtbl_amagicelem =   {0,     MEMBER_TO_FPTR(Perl_magic_setamagic),
2967                                         0,      0,      MEMBER_TO_FPTR(Perl_magic_setamagic)};
2968
2969 EXT MGVTBL PL_vtbl_backref =      {0,   0,
2970                                         0,      0,      MEMBER_TO_FPTR(Perl_magic_killbackrefs)};
2971
2972 #else /* !DOINIT */
2973
2974 EXT MGVTBL PL_vtbl_sv;
2975 EXT MGVTBL PL_vtbl_env;
2976 EXT MGVTBL PL_vtbl_envelem;
2977 EXT MGVTBL PL_vtbl_sig;
2978 EXT MGVTBL PL_vtbl_sigelem;
2979 EXT MGVTBL PL_vtbl_pack;
2980 EXT MGVTBL PL_vtbl_packelem;
2981 EXT MGVTBL PL_vtbl_dbline;
2982 EXT MGVTBL PL_vtbl_isa;
2983 EXT MGVTBL PL_vtbl_isaelem;
2984 EXT MGVTBL PL_vtbl_arylen;
2985 EXT MGVTBL PL_vtbl_glob;
2986 EXT MGVTBL PL_vtbl_mglob;
2987 EXT MGVTBL PL_vtbl_nkeys;
2988 EXT MGVTBL PL_vtbl_taint;
2989 EXT MGVTBL PL_vtbl_substr;
2990 EXT MGVTBL PL_vtbl_vec;
2991 EXT MGVTBL PL_vtbl_pos;
2992 EXT MGVTBL PL_vtbl_bm;
2993 EXT MGVTBL PL_vtbl_fm;
2994 EXT MGVTBL PL_vtbl_uvar;
2995
2996 #ifdef USE_THREADS
2997 EXT MGVTBL PL_vtbl_mutex;
2998 #endif /* USE_THREADS */
2999
3000 EXT MGVTBL PL_vtbl_defelem;
3001 EXT MGVTBL PL_vtbl_regexp;
3002 EXT MGVTBL PL_vtbl_regdata;
3003 EXT MGVTBL PL_vtbl_regdatum;
3004
3005 #ifdef USE_LOCALE_COLLATE
3006 EXT MGVTBL PL_vtbl_collxfrm;
3007 #endif
3008
3009 EXT MGVTBL PL_vtbl_amagic;
3010 EXT MGVTBL PL_vtbl_amagicelem;
3011
3012 EXT MGVTBL PL_vtbl_backref;
3013
3014 #endif /* !DOINIT */
3015
3016 enum {
3017   fallback_amg,        abs_amg,
3018   bool__amg,   nomethod_amg,
3019   string_amg,  numer_amg,
3020   add_amg,     add_ass_amg,
3021   subtr_amg,   subtr_ass_amg,
3022   mult_amg,    mult_ass_amg,
3023   div_amg,     div_ass_amg,
3024   modulo_amg,  modulo_ass_amg,
3025   pow_amg,     pow_ass_amg,
3026   lshift_amg,  lshift_ass_amg,
3027   rshift_amg,  rshift_ass_amg,
3028   band_amg,    band_ass_amg,
3029   bor_amg,     bor_ass_amg,
3030   bxor_amg,    bxor_ass_amg,
3031   lt_amg,      le_amg,
3032   gt_amg,      ge_amg,
3033   eq_amg,      ne_amg,
3034   ncmp_amg,    scmp_amg,
3035   slt_amg,     sle_amg,
3036   sgt_amg,     sge_amg,
3037   seq_amg,     sne_amg,
3038   not_amg,     compl_amg,
3039   inc_amg,     dec_amg,
3040   atan2_amg,   cos_amg,
3041   sin_amg,     exp_amg,
3042   log_amg,     sqrt_amg,
3043   repeat_amg,   repeat_ass_amg,
3044   concat_amg,  concat_ass_amg,
3045   copy_amg,    neg_amg,
3046   to_sv_amg,   to_av_amg,
3047   to_hv_amg,   to_gv_amg,
3048   to_cv_amg,   iter_amg,
3049   max_amg_code
3050   /* Do not leave a trailing comma here.  C9X allows it, C89 doesn't. */
3051 };
3052
3053 #define NofAMmeth max_amg_code
3054
3055 #ifdef DOINIT
3056 EXTCONST char * PL_AMG_names[NofAMmeth] = {
3057   "fallback",   "abs",                  /* "fallback" should be the first. */
3058   "bool",       "nomethod",
3059   "\"\"",       "0+",
3060   "+",          "+=",
3061   "-",          "-=",
3062   "*",          "*=",
3063   "/",          "/=",
3064   "%",          "%=",
3065   "**",         "**=",
3066   "<<",         "<<=",
3067   ">>",         ">>=",
3068   "&",          "&=",
3069   "|",          "|=",
3070   "^",          "^=",
3071   "<",          "<=",
3072   ">",          ">=",
3073   "==",         "!=",
3074   "<=>",        "cmp",
3075   "lt",         "le",
3076   "gt",         "ge",
3077   "eq",         "ne",
3078   "!",          "~",
3079   "++",         "--",
3080   "atan2",      "cos",
3081   "sin",        "exp",
3082   "log",        "sqrt",
3083   "x",          "x=",
3084   ".",          ".=",
3085   "=",          "neg",
3086   "${}",        "@{}",
3087   "%{}",        "*{}",
3088   "&{}",        "<>",
3089 };
3090 #else
3091 EXTCONST char * PL_AMG_names[NofAMmeth];
3092 #endif /* def INITAMAGIC */
3093
3094 END_EXTERN_C
3095
3096 struct am_table {
3097   long was_ok_sub;
3098   long was_ok_am;
3099   U32 flags;
3100   CV* table[NofAMmeth];
3101   long fallback;
3102 };
3103 struct am_table_short {
3104   long was_ok_sub;
3105   long was_ok_am;
3106   U32 flags;
3107 };
3108 typedef struct am_table AMT;
3109 typedef struct am_table_short AMTS;
3110
3111 #define AMGfallNEVER    1
3112 #define AMGfallNO       2
3113 #define AMGfallYES      3
3114
3115 #define AMTf_AMAGIC             1
3116 #define AMT_AMAGIC(amt)         ((amt)->flags & AMTf_AMAGIC)
3117 #define AMT_AMAGIC_on(amt)      ((amt)->flags |= AMTf_AMAGIC)
3118 #define AMT_AMAGIC_off(amt)     ((amt)->flags &= ~AMTf_AMAGIC)
3119
3120
3121 /*
3122  * some compilers like to redefine cos et alia as faster
3123  * (and less accurate?) versions called F_cos et cetera (Quidquid
3124  * latine dictum sit, altum viditur.)  This trick collides with
3125  * the Perl overloading (amg).  The following #defines fool both.
3126  */
3127
3128 #ifdef _FASTMATH
3129 #   ifdef atan2
3130 #       define F_atan2_amg  atan2_amg
3131 #   endif
3132 #   ifdef cos
3133 #       define F_cos_amg    cos_amg
3134 #   endif
3135 #   ifdef exp
3136 #       define F_exp_amg    exp_amg
3137 #   endif
3138 #   ifdef log
3139 #       define F_log_amg    log_amg
3140 #   endif
3141 #   ifdef pow
3142 #       define F_pow_amg    pow_amg
3143 #   endif
3144 #   ifdef sin
3145 #       define F_sin_amg    sin_amg
3146 #   endif
3147 #   ifdef sqrt
3148 #       define F_sqrt_amg   sqrt_amg
3149 #   endif
3150 #endif /* _FASTMATH */
3151
3152 #define PERLDB_ALL              (PERLDBf_SUB    | PERLDBf_LINE  |       \
3153                                  PERLDBf_NOOPT  | PERLDBf_INTER |       \
3154                                  PERLDBf_SUBLINE| PERLDBf_SINGLE|       \
3155                                  PERLDBf_NAMEEVAL| PERLDBf_NAMEANON)
3156                                         /* No _NONAME, _GOTO */
3157 #define PERLDBf_SUB             0x01    /* Debug sub enter/exit */
3158 #define PERLDBf_LINE            0x02    /* Keep line # */
3159 #define PERLDBf_NOOPT           0x04    /* Switch off optimizations */
3160 #define PERLDBf_INTER           0x08    /* Preserve more data for
3161                                            later inspections  */
3162 #define PERLDBf_SUBLINE         0x10    /* Keep subr source lines */
3163 #define PERLDBf_SINGLE          0x20    /* Start with single-step on */
3164 #define PERLDBf_NONAME          0x40    /* For _SUB: no name of the subr */
3165 #define PERLDBf_GOTO            0x80    /* Report goto: call DB::goto */
3166 #define PERLDBf_NAMEEVAL        0x100   /* Informative names for evals */
3167 #define PERLDBf_NAMEANON        0x200   /* Informative names for anon subs */
3168
3169 #define PERLDB_SUB      (PL_perldb && (PL_perldb & PERLDBf_SUB))
3170 #define PERLDB_LINE     (PL_perldb && (PL_perldb & PERLDBf_LINE))
3171 #define PERLDB_NOOPT    (PL_perldb && (PL_perldb & PERLDBf_NOOPT))
3172 #define PERLDB_INTER    (PL_perldb && (PL_perldb & PERLDBf_INTER))
3173 #define PERLDB_SUBLINE  (PL_perldb && (PL_perldb & PERLDBf_SUBLINE))
3174 #define PERLDB_SINGLE   (PL_perldb && (PL_perldb & PERLDBf_SINGLE))
3175 #define PERLDB_SUB_NN   (PL_perldb && (PL_perldb & (PERLDBf_NONAME)))
3176 #define PERLDB_GOTO     (PL_perldb && (PL_perldb & PERLDBf_GOTO))
3177 #define PERLDB_NAMEEVAL (PL_perldb && (PL_perldb & PERLDBf_NAMEEVAL))
3178 #define PERLDB_NAMEANON (PL_perldb && (PL_perldb & PERLDBf_NAMEANON))
3179
3180
3181 #ifdef USE_LOCALE_NUMERIC
3182
3183 #define SET_NUMERIC_STANDARD() \
3184         set_numeric_standard();
3185
3186 #define SET_NUMERIC_LOCAL() \
3187         set_numeric_local();
3188
3189 #define IN_LOCALE_RUNTIME       (PL_curcop->op_private & HINT_LOCALE)
3190 #define IN_LOCALE_COMPILETIME   (PL_hints & HINT_LOCALE)
3191
3192 #define IN_LOCALE \
3193         (PL_curcop == &PL_compiling ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME)
3194
3195 #define IS_NUMERIC_RADIX(s, send)       \
3196         (PL_numeric_radix_sv \
3197          && IN_LOCALE \
3198          && SvCUR(PL_numeric_radix_sv) <= ((send)-(s)) \
3199          && memEQ(s, SvPVX(PL_numeric_radix_sv), SvCUR(PL_numeric_radix_sv)))
3200
3201 #define STORE_NUMERIC_LOCAL_SET_STANDARD() \
3202         bool was_local = PL_numeric_local && IN_LOCALE; \
3203         if (was_local) SET_NUMERIC_STANDARD();
3204
3205 #define STORE_NUMERIC_STANDARD_SET_LOCAL() \
3206         bool was_standard = PL_numeric_standard && IN_LOCALE; \
3207         if (was_standard) SET_NUMERIC_LOCAL();
3208
3209 #define RESTORE_NUMERIC_LOCAL() \
3210         if (was_local) SET_NUMERIC_LOCAL();
3211
3212 #define RESTORE_NUMERIC_STANDARD() \
3213         if (was_standard) SET_NUMERIC_STANDARD();
3214
3215 #define Atof                            my_atof
3216
3217 #else /* !USE_LOCALE_NUMERIC */
3218
3219 #define SET_NUMERIC_STANDARD()          /**/
3220 #define SET_NUMERIC_LOCAL()             /**/
3221 #define IS_NUMERIC_RADIX(a, b)          (0)
3222 #define STORE_NUMERIC_LOCAL_SET_STANDARD()      /**/
3223 #define STORE_NUMERIC_STANDARD_SET_LOCAL()      /**/
3224 #define RESTORE_NUMERIC_LOCAL()         /**/
3225 #define RESTORE_NUMERIC_STANDARD()      /**/
3226 #define Atof                            Perl_atof
3227
3228 #endif /* !USE_LOCALE_NUMERIC */
3229
3230 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG
3231 #    ifdef __hpux
3232 #        define strtoll __strtoll       /* secret handshake */
3233 #    endif
3234 #   if !defined(Strtol) && defined(HAS_STRTOLL)
3235 #       define Strtol   strtoll
3236 #   endif
3237 /* is there atoq() anywhere? */
3238 #endif
3239 #if !defined(Strtol) && defined(HAS_STRTOL)
3240 #   define Strtol       strtol
3241 #endif
3242 #ifndef Atol
3243 /* It would be more fashionable to use Strtol() to define atol()
3244  * (as is done for Atoul(), see below) but for backward compatibility
3245  * we just assume atol(). */
3246 #   if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_ATOLL)
3247 #       define Atol     atoll
3248 #   else
3249 #       define Atol     atol
3250 #   endif
3251 #endif
3252
3253 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && QUADKIND == QUAD_IS_LONG_LONG
3254 #    ifdef __hpux
3255 #        define strtoull __strtoull     /* secret handshake */
3256 #    endif
3257 #    if !defined(Strtoul) && defined(HAS_STRTOULL)
3258 #       define Strtoul  strtoull
3259 #    endif
3260 #    if !defined(Strtoul) && defined(HAS_STRTOUQ)
3261 #       define Strtoul  strtouq
3262 #    endif
3263 /* is there atouq() anywhere? */
3264 #endif
3265 #if !defined(Strtoul) && defined(HAS_STRTOUL)
3266 #   define Strtoul      strtoul
3267 #endif
3268 #ifndef Atoul
3269 #   define Atoul(s)     Strtoul(s, (char **)NULL, 10)
3270 #endif
3271
3272 #if !defined(PERLIO_IS_STDIO) && defined(HASATTRIBUTE)
3273 /*
3274  * Now we have __attribute__ out of the way
3275  * Remap printf
3276  */
3277 #undef printf
3278 #define printf PerlIO_stdoutf
3279 #endif
3280
3281 /* if these never got defined, they need defaults */
3282 #ifndef PERL_SET_CONTEXT
3283 #  define PERL_SET_CONTEXT(i)           PERL_SET_INTERP(i)
3284 #endif
3285
3286 #ifndef PERL_GET_CONTEXT
3287 #  define PERL_GET_CONTEXT              PERL_GET_INTERP
3288 #endif
3289
3290 #ifndef PERL_GET_THX
3291 #  define PERL_GET_THX                  ((void*)NULL)
3292 #endif
3293
3294 #ifndef PERL_SET_THX
3295 #  define PERL_SET_THX(t)               NOOP
3296 #endif
3297
3298 #ifndef PERL_SCRIPT_MODE
3299 #define PERL_SCRIPT_MODE "r"
3300 #endif
3301
3302 /*
3303  * Some operating systems are stingy with stack allocation,
3304  * so perl may have to guard against stack overflow.
3305  */
3306 #ifndef PERL_STACK_OVERFLOW_CHECK
3307 #define PERL_STACK_OVERFLOW_CHECK()  NOOP
3308 #endif
3309
3310 /*
3311  * Some nonpreemptive operating systems find it convenient to
3312  * check for asynchronous conditions after each op execution.
3313  * Keep this check simple, or it may slow down execution
3314  * massively.
3315  */
3316 #ifndef PERL_ASYNC_CHECK
3317 #define PERL_ASYNC_CHECK()  NOOP
3318 #endif
3319
3320 /*
3321  * On some operating systems, a memory allocation may succeed,
3322  * but put the process too close to the system's comfort limit.
3323  * In this case, PERL_ALLOC_CHECK frees the pointer and sets
3324  * it to NULL.
3325  */
3326 #ifndef PERL_ALLOC_CHECK
3327 #define PERL_ALLOC_CHECK(p)  NOOP
3328 #endif
3329
3330 /*
3331  * nice_chunk and nice_chunk size need to be set
3332  * and queried under the protection of sv_mutex
3333  */
3334 #define offer_nice_chunk(chunk, chunk_size) do {        \
3335         LOCK_SV_MUTEX;                                  \
3336         if (!PL_nice_chunk) {                           \
3337             PL_nice_chunk = (char*)(chunk);             \
3338             PL_nice_chunk_size = (chunk_size);          \
3339         }                                               \
3340         else {                                          \
3341             Safefree(chunk);                            \
3342         }                                               \
3343         UNLOCK_SV_MUTEX;                                \
3344     } while (0)
3345
3346 #ifdef HAS_SEM
3347 #   include <sys/ipc.h>
3348 #   include <sys/sem.h>
3349 #   ifndef HAS_UNION_SEMUN      /* Provide the union semun. */
3350     union semun {
3351         int             val;
3352         struct semid_ds *buf;
3353         unsigned short  *array;
3354     };
3355 #   endif
3356 #   ifdef USE_SEMCTL_SEMUN
3357 #       ifdef IRIX32_SEMUN_BROKEN_BY_GCC
3358             union gccbug_semun {
3359                 int             val;
3360                 struct semid_ds *buf;
3361                 unsigned short  *array;
3362                 char            __dummy[5];
3363             };
3364 #           define semun gccbug_semun
3365 #       endif
3366 #       define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun)
3367 #   else
3368 #       ifdef USE_SEMCTL_SEMID_DS
3369 #           ifdef EXTRA_F_IN_SEMUN_BUF
3370 #               define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff)
3371 #           else
3372 #               define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf)
3373 #           endif
3374 #       endif
3375 #   endif
3376 #endif
3377
3378 #ifdef I_FCNTL
3379 #  include <fcntl.h>
3380 #endif
3381
3382 #ifdef I_SYS_FILE
3383 #  include <sys/file.h>
3384 #endif
3385
3386 #ifndef O_RDONLY
3387 /* Assume UNIX defaults */
3388 #    define O_RDONLY    0000
3389 #    define O_WRONLY    0001
3390 #    define O_RDWR      0002
3391 #    define O_CREAT     0100
3392 #endif
3393
3394 #ifndef O_BINARY
3395 #  define O_BINARY 0
3396 #endif
3397
3398 #ifndef O_TEXT
3399 #  define O_TEXT 0
3400 #endif
3401
3402 #ifdef IAMSUID
3403
3404 #ifdef I_SYS_STATVFS
3405 #   include <sys/statvfs.h>     /* for f?statvfs() */
3406 #endif
3407 #ifdef I_SYS_MOUNT
3408 #   include <sys/mount.h>       /* for *BSD f?statfs() */
3409 #endif
3410 #ifdef I_MNTENT
3411 #   include <mntent.h>          /* for getmntent() */
3412 #endif
3413 #ifdef I_SYS_STATFS
3414 #   include <sys/statfs.h>      /* for some statfs() */
3415 #endif
3416 #ifdef I_SYS_VFS
3417 #  ifdef __sgi
3418 #    define sv IRIX_sv          /* kludge: IRIX has an sv of its own */
3419 #  endif
3420 #    include <sys/vfs.h>        /* for some statfs() */
3421 #  ifdef __sgi
3422 #    undef IRIX_sv
3423 #  endif
3424 #endif
3425 #ifdef I_USTAT
3426 #   include <ustat.h>           /* for ustat() */
3427 #endif
3428
3429 #if !defined(PERL_MOUNT_NOSUID) && defined(MOUNT_NOSUID)
3430 #    define PERL_MOUNT_NOSUID MOUNT_NOSUID
3431 #endif
3432 #if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID)
3433 #    define PERL_MOUNT_NOSUID MNT_NOSUID
3434 #endif
3435 #if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID)
3436 #   define PERL_MOUNT_NOSUID MS_NOSUID
3437 #endif
3438 #if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID)
3439 #   define PERL_MOUNT_NOSUID M_NOSUID
3440 #endif
3441
3442 #endif /* IAMSUID */
3443
3444 #ifdef I_LIBUTIL
3445 #   include <libutil.h>         /* setproctitle() in some FreeBSDs */
3446 #endif
3447
3448 #ifndef EXEC_ARGV_CAST
3449 #define EXEC_ARGV_CAST(x) x
3450 #endif
3451
3452 /* and finally... */
3453 #define PERL_PATCHLEVEL_H_IMPLICIT
3454 #include "patchlevel.h"
3455 #undef PERL_PATCHLEVEL_H_IMPLICIT
3456
3457 /* Mention
3458
3459    NV_PRESERVES_UV
3460
3461    HAS_ICONV
3462    I_ICONV
3463
3464    HAS_MKSTEMP
3465    HAS_MKSTEMPS
3466    HAS_MKDTEMP
3467
3468    HAS_GETCWD
3469
3470    HAS_MMAP
3471    HAS_MPROTECT
3472    HAS_MSYNC
3473    HAS_MADVISE
3474    HAS_MUNMAP
3475    I_SYSMMAN
3476    Mmap_t
3477
3478    NVef
3479    NVff
3480    NVgf
3481
3482    so that Configure picks them up. */
3483
3484 #endif /* Include guard */