libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002-2017 Free Software Foundation, Inc.
   3    Contributed by Paul Brook <paul@nowt.org>, and
   4    Andy Vaught <andy@xena.eas.asu.edu>
   5
   6 This file is part of the GNU Fortran runtime library (libgfortran).
   7
   8 Libgfortran is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 Libgfortran is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 Under Section 7 of GPL version 3, you are granted additional
  19 permissions described in the GCC Runtime Library Exception, version
  20 3.1, as published by the Free Software Foundation.
  21
  22 You should have received a copy of the GNU General Public License and
  23 a copy of the GCC Runtime Library Exception along with this program;
  24 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25 <http://www.gnu.org/licenses/>.  */
  26
  27 #ifndef LIBGFOR_H
  28 #define LIBGFOR_H
  29
  30 /* Ensure that ANSI conform stdio is used. This needs to be set before
  31    any system header file is included.  */
  32 #if defined __MINGW32__
  33 #  define _POSIX 1
  34 #  define gfc_printf gnu_printf
  35 #else
  36 #  define gfc_printf __printf__
  37 #endif
  38
  39 /* config.h MUST be first because it can affect system headers.  */
  40 #include "config.h"
  41
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <stddef.h>
  45 #include <float.h>
  46 #include <stdarg.h>
  47 #include <stdbool.h>
  48
  49 #if HAVE_COMPLEX_H
  50 /* Must appear before math.h on VMS systems.  */
  51 # include <complex.h>
  52 #else
  53 #define complex __complex__
  54 #endif
  55
  56 #include <math.h>
  57
  58 /* If we're support quad-precision floating-point type, include the
  59    header to our support library.  */
  60 #ifdef HAVE_FLOAT128
  61 #  include "quadmath_weak.h"
  62 #endif
  63
  64 #ifdef __MINGW32__
  65 extern float __strtof (const char *, char **);
  66 #define gfc_strtof __strtof
  67 extern double __strtod (const char *, char **);
  68 #define gfc_strtod __strtod
  69 extern long double __strtold (const char *, char **);
  70 #define gfc_strtold __strtold
  71 #else
  72 #define gfc_strtof strtof
  73 #define gfc_strtod strtod
  74 #define gfc_strtold strtold
  75 #endif
  76
  77 #include "../gcc/fortran/libgfortran.h"
  78
  79 #include "c99_protos.h"
  80
  81 #if HAVE_IEEEFP_H
  82 #include <ieeefp.h>
  83 #endif
  84
  85 #include "gstdint.h"
  86
  87 #if HAVE_SYS_TYPES_H
  88 #include <sys/types.h>
  89 #endif
  90
  91 #ifdef __MINGW32__
  92 typedef off64_t gfc_offset;
  93 #else
  94 typedef off_t gfc_offset;
  95 #endif
  96
  97 #ifndef NULL
  98 #define NULL (void *) 0
  99 #endif
 100
 101
 102 /* The following macros can be used to annotate conditions which are likely or
 103    unlikely to be true.  Avoid using them when a condition is only slightly
 104    more likely/less unlikely than average to avoid the performance penalties of
 105    branch misprediction. In addition, as __builtin_expect overrides the compiler
 106    heuristic, do not use in conditions where one of the branches ends with a
 107    call to a function with __attribute__((noreturn)): the compiler internal
 108    heuristic will mark this branch as much less likely as unlikely() would
 109    do.  */
 110
 111 #define likely(x)       __builtin_expect(!!(x), 1)
 112 #define unlikely(x)     __builtin_expect(!!(x), 0)
 113
 114 /* This macro can be used to annotate conditions which we know to
 115    be true, so that the compiler can optimize based on the condition.  */
 116
 117 #define GFC_ASSERT(EXPR)                                                \
 118   ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
 119
 120 /* Make sure we have ptrdiff_t. */
 121 #ifndef HAVE_PTRDIFF_T
 122 typedef intptr_t ptrdiff_t;
 123 #endif
 124
 125 /* On mingw, work around the buggy Windows snprintf() by using the one
 126    mingw provides, __mingw_snprintf().  We also provide a prototype for
 127    __mingw_snprintf(), because the mingw headers currently don't have one.  */
 128 #if HAVE_MINGW_SNPRINTF
 129 extern int __mingw_snprintf (char *, size_t, const char *, ...)
 130      __attribute__ ((format (gnu_printf, 3, 4)));
 131 #undef snprintf
 132 #define snprintf __mingw_snprintf
 133 /* Fallback to sprintf if target does not have snprintf.  */
 134 #elif !defined(HAVE_SNPRINTF)
 135 #undef snprintf
 136 #define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)
 137 #endif
 138
 139
 140 /* For a library, a standard prefix is a requirement in order to partition
 141    the namespace.  IPREFIX is for symbols intended to be internal to the
 142    library.  */
 143 #define PREFIX(x)       _gfortran_ ## x
 144 #define IPREFIX(x)      _gfortrani_ ## x
 145
 146 /* Magic to rename a symbol at the compiler level.  You continue to refer
 147    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
 148 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
 149 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
 150 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
 151
 152 /* There are several classifications of routines:
 153
 154      (1) Symbols used only within the library,
 155      (2) Symbols to be exported from the library,
 156      (3) Symbols to be exported from the library, but
 157          also used inside the library.
 158
 159    By telling the compiler about these different classifications we can
 160    tightly control the interface seen by the user, and get better code
 161    from the compiler at the same time.
 162
 163    One of the following should be used immediately after the declaration
 164    of each symbol:
 165
 166      internal_proto     Marks a symbol used only within the library,
 167                         and adds IPREFIX to the assembly-level symbol
 168                         name.  The later is important for maintaining
 169                         the namespace partition for the static library.
 170
 171      export_proto       Marks a symbol to be exported, and adds PREFIX
 172                         to the assembly-level symbol name.
 173
 174      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 175
 176      iexport_proto      Marks a function to be exported, but with the
 177                         understanding that it can be used inside as well.
 178
 179      iexport_data_proto Similarly, marks a data symbol to be exported.
 180                         Unfortunately, some systems can't play the hidden
 181                         symbol renaming trick on data symbols, thanks to
 182                         the horribleness of COPY relocations.
 183
 184    If iexport_proto or iexport_data_proto is used, you must also use
 185    iexport or iexport_data after the *definition* of the symbol.  */
 186
 187 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 188 # define internal_proto(x) \
 189         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 190 #else
 191 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 192 #endif
 193
 194 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 195 # define export_proto(x)        sym_rename(x, PREFIX(x))
 196 # define export_proto_np(x)     extern char swallow_semicolon
 197 # define iexport_proto(x)       internal_proto(x)
 198 # define iexport(x)             iexport1(x, IPREFIX(x))
 199 # define iexport1(x,y)          iexport2(x,y)
 200 # define iexport2(x,y) \
 201         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 202 #else
 203 # define export_proto(x)        sym_rename(x, PREFIX(x))
 204 # define export_proto_np(x)     extern char swallow_semicolon
 205 # define iexport_proto(x)       export_proto(x)
 206 # define iexport(x)             extern char swallow_semicolon
 207 #endif
 208
 209 /* TODO: detect the case when we *can* hide the symbol.  */
 210 #define iexport_data_proto(x)   export_proto(x)
 211 #define iexport_data(x)         extern char swallow_semicolon
 212
 213 /* The only reliable way to get the offset of a field in a struct
 214    in a system independent way is via this macro.  */
 215 #ifndef offsetof
 216 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 217 #endif
 218
 219 /* The C99 classification macros isfinite, isinf, isnan, isnormal
 220    and signbit are broken or inconsistent on quite a few targets.
 221    So, we use GCC's builtins instead.
 222
 223    Another advantage for GCC's builtins for these type-generic macros
 224    is that it handles floating-point types that the system headers
 225    may not support (like __float128).  */
 226
 227 #undef isnan
 228 #define isnan(x) __builtin_isnan(x)
 229 #undef isfinite
 230 #define isfinite(x) __builtin_isfinite(x)
 231 #undef isinf
 232 #define isinf(x) __builtin_isinf(x)
 233 #undef isnormal
 234 #define isnormal(x) __builtin_isnormal(x)
 235 #undef signbit
 236 #define signbit(x) __builtin_signbit(x)
 237
 238 #include "kinds.h"
 239
 240 /* Define the type used for the current record number for large file I/O.
 241    The size must be consistent with the size defined on the compiler side.  */
 242 #ifdef HAVE_GFC_INTEGER_8
 243 typedef GFC_INTEGER_8 GFC_IO_INT;
 244 #else
 245 #ifdef HAVE_GFC_INTEGER_4
 246 typedef GFC_INTEGER_4 GFC_IO_INT;
 247 #else
 248 #error "GFC_INTEGER_4 should be available for the library to compile".
 249 #endif
 250 #endif
 251
 252 /* The following two definitions must be consistent with the types used
 253    by the compiler.  */
 254 /* The type used of array indices, amongst other things.  */
 255 typedef ptrdiff_t index_type;
 256
 257 /* The type used for the lengths of character variables.  */
 258 typedef GFC_INTEGER_4 gfc_charlen_type;
 259
 260 /* Definitions of CHARACTER data types:
 261      - CHARACTER(KIND=1) corresponds to the C char type,
 262      - CHARACTER(KIND=4) corresponds to an unsigned 32-bit integer.  */
 263 typedef GFC_UINTEGER_4 gfc_char4_t;
 264
 265 /* Byte size of character kinds.  For the kinds currently supported, it's
 266    simply equal to the kind parameter itself.  */
 267 #define GFC_SIZE_OF_CHAR_KIND(kind) (kind)
 268
 269 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 270 extern int big_endian;
 271 internal_proto(big_endian);
 272
 273 #define GFOR_POINTER_TO_L1(p, kind) \
 274   (big_endian * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 275
 276 #define GFC_INTEGER_1_HUGE \
 277   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 278 #define GFC_INTEGER_2_HUGE \
 279   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 280 #define GFC_INTEGER_4_HUGE \
 281   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 282 #define GFC_INTEGER_8_HUGE \
 283   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 284 #ifdef HAVE_GFC_INTEGER_16
 285 #define GFC_INTEGER_16_HUGE \
 286   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 287 #endif
 288
 289 /* M{IN,AX}{LOC,VAL} need also infinities and NaNs if supported.  */
 290
 291 #ifdef __FLT_HAS_INFINITY__
 292 # define GFC_REAL_4_INFINITY __builtin_inff ()
 293 #endif
 294 #ifdef __DBL_HAS_INFINITY__
 295 # define GFC_REAL_8_INFINITY __builtin_inf ()
 296 #endif
 297 #ifdef __LDBL_HAS_INFINITY__
 298 # ifdef HAVE_GFC_REAL_10
 299 #  define GFC_REAL_10_INFINITY __builtin_infl ()
 300 # endif
 301 # ifdef HAVE_GFC_REAL_16
 302 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 303 #   define GFC_REAL_16_INFINITY __builtin_infl ()
 304 #  else
 305 #   define GFC_REAL_16_INFINITY __builtin_infq ()
 306 #  endif
 307 # endif
 308 #endif
 309 #ifdef __FLT_HAS_QUIET_NAN__
 310 # define GFC_REAL_4_QUIET_NAN __builtin_nanf ("")
 311 #endif
 312 #ifdef __DBL_HAS_QUIET_NAN__
 313 # define GFC_REAL_8_QUIET_NAN __builtin_nan ("")
 314 #endif
 315 #ifdef __LDBL_HAS_QUIET_NAN__
 316 # ifdef HAVE_GFC_REAL_10
 317 #  define GFC_REAL_10_QUIET_NAN __builtin_nanl ("")
 318 # endif
 319 # ifdef HAVE_GFC_REAL_16
 320 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 321 #   define GFC_REAL_16_QUIET_NAN __builtin_nanl ("")
 322 #  else
 323 #   define GFC_REAL_16_QUIET_NAN nanq ("")
 324 #  endif
 325 # endif
 326 #endif
 327
 328 typedef struct descriptor_dimension
 329 {
 330   index_type _stride;
 331   index_type lower_bound;
 332   index_type _ubound;
 333 }
 334
 335 descriptor_dimension;
 336
 337 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 338 struct {\
 339   type *base_addr;\
 340   size_t offset;\
 341   index_type dtype;\
 342   descriptor_dimension dim[r];\
 343 }
 344
 345 /* Commonly used array descriptor types.  */
 346 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 347 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 348 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 349 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 350 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 351 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 352 #ifdef HAVE_GFC_INTEGER_16
 353 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 354 #endif
 355 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 356 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 357 #ifdef HAVE_GFC_REAL_10
 358 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 359 #endif
 360 #ifdef HAVE_GFC_REAL_16
 361 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 362 #endif
 363 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 364 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 365 #ifdef HAVE_GFC_COMPLEX_10
 366 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 367 #endif
 368 #ifdef HAVE_GFC_COMPLEX_16
 369 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 370 #endif
 371 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 372 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 373 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 374 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 375 #ifdef HAVE_GFC_LOGICAL_16
 376 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 377 #endif
 378
 379
 380 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 381 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 382                                    >> GFC_DTYPE_TYPE_SHIFT)
 383 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 384 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->base_addr)
 385 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 386
 387 #define GFC_DIMENSION_LBOUND(dim) ((dim).lower_bound)
 388 #define GFC_DIMENSION_UBOUND(dim) ((dim)._ubound)
 389 #define GFC_DIMENSION_STRIDE(dim) ((dim)._stride)
 390 #define GFC_DIMENSION_EXTENT(dim) ((dim)._ubound + 1 - (dim).lower_bound)
 391 #define GFC_DIMENSION_SET(dim,lb,ub,str) \
 392   do \
 393     { \
 394       (dim).lower_bound = lb;                   \
 395       (dim)._ubound = ub;                       \
 396       (dim)._stride = str;                      \
 397     } while (0)
 398
 399
 400 #define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i].lower_bound)
 401 #define GFC_DESCRIPTOR_UBOUND(desc,i) ((desc)->dim[i]._ubound)
 402 #define GFC_DESCRIPTOR_EXTENT(desc,i) ((desc)->dim[i]._ubound + 1 \
 403                                       - (desc)->dim[i].lower_bound)
 404 #define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \
 405   (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 406
 407 #define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)
 408 #define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \
 409   (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 410
 411 /* Macros to get both the size and the type with a single masking operation  */
 412
 413 #define GFC_DTYPE_SIZE_MASK (-((index_type) 1 << GFC_DTYPE_SIZE_SHIFT))
 414 #define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)
 415
 416 #define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)
 417
 418 #define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 419    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 420 #define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 421    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 422 #define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 423    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 424 #define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 425    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 426 #ifdef HAVE_GFC_INTEGER_16
 427 #define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 428    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 429 #endif
 430
 431 #define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 432    | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))
 433 #define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 434    | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))
 435 #define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 436    | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))
 437 #define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 438    | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))
 439 #ifdef HAVE_GFC_LOGICAL_16
 440 #define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 441    | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))
 442 #endif
 443
 444 #define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 445    | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))
 446 #define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 447    | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))
 448 #ifdef HAVE_GFC_REAL_10
 449 #define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 450    | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))
 451 #endif
 452 #ifdef HAVE_GFC_REAL_16
 453 #define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 454    | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))
 455 #endif
 456
 457 #define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 458    | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))
 459 #define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 460    | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))
 461 #ifdef HAVE_GFC_COMPLEX_10
 462 #define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 463    | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))
 464 #endif
 465 #ifdef HAVE_GFC_COMPLEX_16
 466 #define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 467    | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))
 468 #endif
 469
 470 #define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 471    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 472 #define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 473    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 474 #define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 475    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 476 #define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 477    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 478 #ifdef HAVE_GFC_INTEGER_16
 479 #define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 480    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 481 #endif
 482
 483 /* Macros to determine the alignment of pointers.  */
 484
 485 #define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \
 486                             (__alignof__(GFC_INTEGER_2) - 1))
 487 #define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \
 488                             (__alignof__(GFC_INTEGER_4) - 1))
 489 #define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \
 490                             (__alignof__(GFC_INTEGER_8) - 1))
 491 #ifdef HAVE_GFC_INTEGER_16
 492 #define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \
 493                              (__alignof__(GFC_INTEGER_16) - 1))
 494 #endif
 495
 496 #define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \
 497                              (__alignof__(GFC_COMPLEX_4) - 1))
 498
 499 #define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \
 500                              (__alignof__(GFC_COMPLEX_8) - 1))
 501
 502 /* Runtime library include.  */
 503 #define stringize(x) expand_macro(x)
 504 #define expand_macro(x) # x
 505
 506 /* Runtime options structure.  */
 507
 508 typedef struct
 509 {
 510   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 511   int locus;
 512
 513   int separator_len;
 514   const char *separator;
 515
 516   int all_unbuffered, unbuffered_preconnected, default_recl;
 517   int fpe, backtrace;
 518 }
 519 options_t;
 520
 521 extern options_t options;
 522 internal_proto(options);
 523
 524 extern void backtrace_handler (int);
 525 internal_proto(backtrace_handler);
 526
 527
 528 /* Compile-time options that will influence the library.  */
 529
 530 typedef struct
 531 {
 532   int warn_std;
 533   int allow_std;
 534   int pedantic;
 535   int convert;
 536   int backtrace;
 537   int sign_zero;
 538   size_t record_marker;
 539   int max_subrecord_length;
 540   int bounds_check;
 541   int fpe_summary;
 542 }
 543 compile_options_t;
 544
 545 extern compile_options_t compile_options;
 546 internal_proto(compile_options);
 547
 548 extern void init_compile_options (void);
 549 internal_proto(init_compile_options);
 550
 551 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 552
 553 /* Structure for statement options.  */
 554
 555 typedef struct
 556 {
 557   const char *name;
 558   int value;
 559 }
 560 st_option;
 561
 562
 563 /* This is returned by notification_std to know if, given the flags
 564    that were given (-std=, -pedantic) we should issue an error, a warning
 565    or nothing.  */
 566 typedef enum
 567 { NOTIFICATION_SILENT, NOTIFICATION_WARNING, NOTIFICATION_ERROR }
 568 notification;
 569
 570
 571 /* The filename and line number don't go inside the globals structure.
 572    They are set by the rest of the program and must be linked to.  */
 573
 574 /* Location of the current library call (optional).  */
 575 extern unsigned line;
 576 iexport_data_proto(line);
 577
 578 extern char *filename;
 579 iexport_data_proto(filename);
 580
 581
 582 /* The default value of record length for preconnected units is defined
 583    here. This value can be overriden by an environment variable.
 584    Default value is 1 Gb.  */
 585 #define DEFAULT_RECL 1073741824
 586
 587
 588 #define CHARACTER2(name) \
 589               gfc_charlen_type name ## _len; \
 590               char * name
 591
 592 typedef struct st_parameter_common
 593 {
 594   GFC_INTEGER_4 flags;
 595   GFC_INTEGER_4 unit;
 596   const char *filename;
 597   GFC_INTEGER_4 line;
 598   CHARACTER2 (iomsg);
 599   GFC_INTEGER_4 *iostat;
 600 }
 601 st_parameter_common;
 602
 603 #undef CHARACTER2
 604
 605 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 606 #define IOPARM_LIBRETURN_OK             (0 << 0)
 607 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 608 #define IOPARM_LIBRETURN_END            (2 << 0)
 609 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 610 #define IOPARM_ERR                      (1 << 2)
 611 #define IOPARM_END                      (1 << 3)
 612 #define IOPARM_EOR                      (1 << 4)
 613 #define IOPARM_HAS_IOSTAT               (1 << 5)
 614 #define IOPARM_HAS_IOMSG                (1 << 6)
 615
 616 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 617
 618 /* Make sure to keep in sync with io/io.h (st_parameter_open).  */
 619 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 620 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 621 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 622 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 623 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 624 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 625 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 626 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 627 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 628 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 629 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 630 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 631 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 632 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 633 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 634 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 635 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 636 #define IOPARM_OPEN_HAS_READONLY        (1 << 24)
 637 #define IOPARM_OPEN_HAS_CC              (1 << 25)
 638 #define IOPARM_OPEN_HAS_SHARE           (1 << 26)
 639
 640 /* library start function and end macro.  These can be expanded if needed
 641    in the future.  cmp is st_parameter_common *cmp  */
 642
 643 extern void library_start (st_parameter_common *);
 644 internal_proto(library_start);
 645
 646 #define library_end()
 647
 648 /* main.c */
 649
 650 extern void stupid_function_name_for_static_linking (void);
 651 internal_proto(stupid_function_name_for_static_linking);
 652
 653 extern void set_args (int, char **);
 654 iexport_proto(set_args);
 655
 656 extern void get_args (int *, char ***);
 657 internal_proto(get_args);
 658
 659 /* backtrace.c */
 660
 661 extern void show_backtrace (bool);
 662 internal_proto(show_backtrace);
 663
 664
 665 /* error.c */
 666
 667 #if defined(HAVE_GFC_REAL_16)
 668 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 669 #elif defined(HAVE_GFC_INTEGER_16)
 670 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 671 #elif defined(HAVE_GFC_REAL_10)
 672 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 673 #else
 674 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 675 #endif
 676
 677 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 678 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 679 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 680 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 681
 682 extern _Noreturn void sys_abort (void);
 683 internal_proto(sys_abort);
 684
 685 extern _Noreturn void exit_error (int);
 686 internal_proto(exit_error);
 687
 688 extern ssize_t estr_write (const char *);
 689 internal_proto(estr_write);
 690
 691 extern int st_vprintf (const char *, va_list);
 692 internal_proto(st_vprintf);
 693
 694 extern int st_printf (const char *, ...)
 695   __attribute__((format (gfc_printf, 1, 2)));
 696 internal_proto(st_printf);
 697
 698 extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 699 internal_proto(gfc_xtoa);
 700
 701 extern _Noreturn void os_error (const char *);
 702 iexport_proto(os_error);
 703
 704 extern void show_locus (st_parameter_common *);
 705 internal_proto(show_locus);
 706
 707 extern _Noreturn void runtime_error (const char *, ...)
 708      __attribute__ ((format (gfc_printf, 1, 2)));
 709 iexport_proto(runtime_error);
 710
 711 extern _Noreturn void runtime_error_at (const char *, const char *, ...)
 712      __attribute__ ((format (gfc_printf, 2, 3)));
 713 iexport_proto(runtime_error_at);
 714
 715 extern void runtime_warning_at (const char *, const char *, ...)
 716      __attribute__ ((format (gfc_printf, 2, 3)));
 717 iexport_proto(runtime_warning_at);
 718
 719 extern _Noreturn void internal_error (st_parameter_common *, const char *);
 720 internal_proto(internal_error);
 721
 722 extern const char *translate_error (int);
 723 internal_proto(translate_error);
 724
 725 extern void generate_error (st_parameter_common *, int, const char *);
 726 iexport_proto(generate_error);
 727
 728 extern void generate_warning (st_parameter_common *, const char *);
 729 internal_proto(generate_warning);
 730
 731 extern bool notify_std (st_parameter_common *, int, const char *);
 732 internal_proto(notify_std);
 733
 734 extern notification notification_std(int);
 735 internal_proto(notification_std);
 736
 737 extern char *gf_strerror (int, char *, size_t);
 738 internal_proto(gf_strerror);
 739
 740 /* fpu.c */
 741
 742 extern void set_fpu (void);
 743 internal_proto(set_fpu);
 744
 745 extern int get_fpu_trap_exceptions (void);
 746 internal_proto(get_fpu_trap_exceptions);
 747
 748 extern void set_fpu_trap_exceptions (int, int);
 749 internal_proto(set_fpu_trap_exceptions);
 750
 751 extern int support_fpu_trap (int);
 752 internal_proto(support_fpu_trap);
 753
 754 extern int get_fpu_except_flags (void);
 755 internal_proto(get_fpu_except_flags);
 756
 757 extern void set_fpu_except_flags (int, int);
 758 internal_proto(set_fpu_except_flags);
 759
 760 extern int support_fpu_flag (int);
 761 internal_proto(support_fpu_flag);
 762
 763 extern void set_fpu_rounding_mode (int);
 764 internal_proto(set_fpu_rounding_mode);
 765
 766 extern int get_fpu_rounding_mode (void);
 767 internal_proto(get_fpu_rounding_mode);
 768
 769 extern int support_fpu_rounding_mode (int);
 770 internal_proto(support_fpu_rounding_mode);
 771
 772 extern void get_fpu_state (void *);
 773 internal_proto(get_fpu_state);
 774
 775 extern void set_fpu_state (void *);
 776 internal_proto(set_fpu_state);
 777
 778 extern int get_fpu_underflow_mode (void);
 779 internal_proto(get_fpu_underflow_mode);
 780
 781 extern void set_fpu_underflow_mode (int);
 782 internal_proto(set_fpu_underflow_mode);
 783
 784 extern int support_fpu_underflow_control (int);
 785 internal_proto(support_fpu_underflow_control);
 786
 787 /* memory.c */
 788
 789 extern void *xmalloc (size_t) __attribute__ ((malloc));
 790 internal_proto(xmalloc);
 791
 792 extern void *xmallocarray (size_t, size_t) __attribute__ ((malloc));
 793 internal_proto(xmallocarray);
 794
 795 extern void *xcalloc (size_t, size_t) __attribute__ ((malloc));
 796 internal_proto(xcalloc);
 797
 798 extern void *xrealloc (void *, size_t);
 799 internal_proto(xrealloc);
 800
 801 /* environ.c */
 802
 803 extern void init_variables (void);
 804 internal_proto(init_variables);
 805
 806 unit_convert get_unformatted_convert (int);
 807 internal_proto(get_unformatted_convert);
 808
 809 /* Secure getenv() which returns NULL if running as SUID/SGID.  */
 810 #ifndef HAVE_SECURE_GETENV
 811 #if defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 812   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 813 #define FALLBACK_SECURE_GETENV
 814 extern char *secure_getenv (const char *);
 815 internal_proto(secure_getenv);
 816 #else
 817 #define secure_getenv getenv
 818 #endif
 819 #endif
 820
 821 /* string.c */
 822
 823 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 824                         const st_option *, const char *);
 825 internal_proto(find_option);
 826
 827 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 828 internal_proto(fstrlen);
 829
 830 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 831 internal_proto(fstrcpy);
 832
 833 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 834 internal_proto(cf_strcpy);
 835
 836 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 837 export_proto(string_len_trim);
 838
 839 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 840                                                const gfc_char4_t *);
 841 export_proto(string_len_trim_char4);
 842
 843 extern char *fc_strdup(const char *, gfc_charlen_type);
 844 internal_proto(fc_strdup);
 845
 846 extern char *fc_strdup_notrim(const char *, gfc_charlen_type);
 847 internal_proto(fc_strdup_notrim);
 848
 849 extern const char *gfc_itoa(GFC_INTEGER_LARGEST, char *, size_t);
 850 internal_proto(gfc_itoa);
 851
 852 /* io/intrinsics.c */
 853
 854 extern void flush_all_units (void);
 855 internal_proto(flush_all_units);
 856
 857 /* io.c */
 858
 859 extern void init_units (void);
 860 internal_proto(init_units);
 861
 862 extern void close_units (void);
 863 internal_proto(close_units);
 864
 865 extern int unit_to_fd (int);
 866 internal_proto(unit_to_fd);
 867
 868 extern char * filename_from_unit (int);
 869 internal_proto(filename_from_unit);
 870
 871 /* stop.c */
 872
 873 extern _Noreturn void stop_string (const char *, GFC_INTEGER_4);
 874 export_proto(stop_string);
 875
 876 /* reshape_packed.c */
 877
 878 extern void reshape_packed (char *, index_type, const char *, index_type,
 879                             const char *, index_type);
 880 internal_proto(reshape_packed);
 881
 882 /* Repacking functions.  These are called internally by internal_pack
 883    and internal_unpack.  */
 884
 885 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 886 internal_proto(internal_pack_1);
 887
 888 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 889 internal_proto(internal_pack_2);
 890
 891 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 892 internal_proto(internal_pack_4);
 893
 894 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 895 internal_proto(internal_pack_8);
 896
 897 #if defined HAVE_GFC_INTEGER_16
 898 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 899 internal_proto(internal_pack_16);
 900 #endif
 901
 902 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 903 internal_proto(internal_pack_r4);
 904
 905 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 906 internal_proto(internal_pack_r8);
 907
 908 #if defined HAVE_GFC_REAL_10
 909 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 910 internal_proto(internal_pack_r10);
 911 #endif
 912
 913 #if defined HAVE_GFC_REAL_16
 914 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 915 internal_proto(internal_pack_r16);
 916 #endif
 917
 918 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 919 internal_proto(internal_pack_c4);
 920
 921 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 922 internal_proto(internal_pack_c8);
 923
 924 #if defined HAVE_GFC_COMPLEX_10
 925 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 926 internal_proto(internal_pack_c10);
 927 #endif
 928
 929 #if defined HAVE_GFC_COMPLEX_16
 930 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 931 internal_proto(internal_pack_c16);
 932 #endif
 933
 934 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 935 internal_proto(internal_unpack_1);
 936
 937 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 938 internal_proto(internal_unpack_2);
 939
 940 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 941 internal_proto(internal_unpack_4);
 942
 943 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 944 internal_proto(internal_unpack_8);
 945
 946 #if defined HAVE_GFC_INTEGER_16
 947 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 948 internal_proto(internal_unpack_16);
 949 #endif
 950
 951 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 952 internal_proto(internal_unpack_r4);
 953
 954 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 955 internal_proto(internal_unpack_r8);
 956
 957 #if defined HAVE_GFC_REAL_10
 958 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 959 internal_proto(internal_unpack_r10);
 960 #endif
 961
 962 #if defined HAVE_GFC_REAL_16
 963 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 964 internal_proto(internal_unpack_r16);
 965 #endif
 966
 967 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 968 internal_proto(internal_unpack_c4);
 969
 970 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 971 internal_proto(internal_unpack_c8);
 972
 973 #if defined HAVE_GFC_COMPLEX_10
 974 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 975 internal_proto(internal_unpack_c10);
 976 #endif
 977
 978 #if defined HAVE_GFC_COMPLEX_16
 979 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 980 internal_proto(internal_unpack_c16);
 981 #endif
 982
 983 /* Internal auxiliary functions for the pack intrinsic.  */
 984
 985 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 986                      const gfc_array_l1 *, const gfc_array_i1 *);
 987 internal_proto(pack_i1);
 988
 989 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 990                      const gfc_array_l1 *, const gfc_array_i2 *);
 991 internal_proto(pack_i2);
 992
 993 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 994                      const gfc_array_l1 *, const gfc_array_i4 *);
 995 internal_proto(pack_i4);
 996
 997 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 998                      const gfc_array_l1 *, const gfc_array_i8 *);
 999 internal_proto(pack_i8);
1000
1001 #ifdef HAVE_GFC_INTEGER_16
1002 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1003                      const gfc_array_l1 *, const gfc_array_i16 *);
1004 internal_proto(pack_i16);
1005 #endif
1006
1007 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1008                      const gfc_array_l1 *, const gfc_array_r4 *);
1009 internal_proto(pack_r4);
1010
1011 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1012                      const gfc_array_l1 *, const gfc_array_r8 *);
1013 internal_proto(pack_r8);
1014
1015 #ifdef HAVE_GFC_REAL_10
1016 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1017                      const gfc_array_l1 *, const gfc_array_r10 *);
1018 internal_proto(pack_r10);
1019 #endif
1020
1021 #ifdef HAVE_GFC_REAL_16
1022 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1023                      const gfc_array_l1 *, const gfc_array_r16 *);
1024 internal_proto(pack_r16);
1025 #endif
1026
1027 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1028                      const gfc_array_l1 *, const gfc_array_c4 *);
1029 internal_proto(pack_c4);
1030
1031 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1032                      const gfc_array_l1 *, const gfc_array_c8 *);
1033 internal_proto(pack_c8);
1034
1035 #ifdef HAVE_GFC_REAL_10
1036 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1037                      const gfc_array_l1 *, const gfc_array_c10 *);
1038 internal_proto(pack_c10);
1039 #endif
1040
1041 #ifdef HAVE_GFC_REAL_16
1042 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1043                      const gfc_array_l1 *, const gfc_array_c16 *);
1044 internal_proto(pack_c16);
1045 #endif
1046
1047 /* Internal auxiliary functions for the unpack intrinsic.  */
1048
1049 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1050                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1051 internal_proto(unpack0_i1);
1052
1053 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1054                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1055 internal_proto(unpack0_i2);
1056
1057 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1058                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1059 internal_proto(unpack0_i4);
1060
1061 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1062                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1063 internal_proto(unpack0_i8);
1064
1065 #ifdef HAVE_GFC_INTEGER_16
1066
1067 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1068                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1069 internal_proto(unpack0_i16);
1070
1071 #endif
1072
1073 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1074                         const gfc_array_l1 *, const GFC_REAL_4 *);
1075 internal_proto(unpack0_r4);
1076
1077 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1078                         const gfc_array_l1 *, const GFC_REAL_8 *);
1079 internal_proto(unpack0_r8);
1080
1081 #ifdef HAVE_GFC_REAL_10
1082
1083 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1084                          const gfc_array_l1 *, const GFC_REAL_10 *);
1085 internal_proto(unpack0_r10);
1086
1087 #endif
1088
1089 #ifdef HAVE_GFC_REAL_16
1090
1091 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1092                          const gfc_array_l1 *, const GFC_REAL_16 *);
1093 internal_proto(unpack0_r16);
1094
1095 #endif
1096
1097 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1098                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1099 internal_proto(unpack0_c4);
1100
1101 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1102                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1103 internal_proto(unpack0_c8);
1104
1105 #ifdef HAVE_GFC_COMPLEX_10
1106
1107 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1108                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1109 internal_proto(unpack0_c10);
1110
1111 #endif
1112
1113 #ifdef HAVE_GFC_COMPLEX_16
1114
1115 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1116                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1117 internal_proto(unpack0_c16);
1118
1119 #endif
1120
1121 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1122                         const gfc_array_l1 *, const gfc_array_i1 *);
1123 internal_proto(unpack1_i1);
1124
1125 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1126                         const gfc_array_l1 *, const gfc_array_i2 *);
1127 internal_proto(unpack1_i2);
1128
1129 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1130                         const gfc_array_l1 *, const gfc_array_i4 *);
1131 internal_proto(unpack1_i4);
1132
1133 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1134                         const gfc_array_l1 *, const gfc_array_i8 *);
1135 internal_proto(unpack1_i8);
1136
1137 #ifdef HAVE_GFC_INTEGER_16
1138 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1139                          const gfc_array_l1 *, const gfc_array_i16 *);
1140 internal_proto(unpack1_i16);
1141 #endif
1142
1143 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1144                         const gfc_array_l1 *, const gfc_array_r4 *);
1145 internal_proto(unpack1_r4);
1146
1147 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1148                         const gfc_array_l1 *, const gfc_array_r8 *);
1149 internal_proto(unpack1_r8);
1150
1151 #ifdef HAVE_GFC_REAL_10
1152 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1153                          const gfc_array_l1 *, const gfc_array_r10 *);
1154 internal_proto(unpack1_r10);
1155 #endif
1156
1157 #ifdef HAVE_GFC_REAL_16
1158 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1159                          const gfc_array_l1 *, const gfc_array_r16 *);
1160 internal_proto(unpack1_r16);
1161 #endif
1162
1163 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1164                         const gfc_array_l1 *, const gfc_array_c4 *);
1165 internal_proto(unpack1_c4);
1166
1167 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1168                         const gfc_array_l1 *, const gfc_array_c8 *);
1169 internal_proto(unpack1_c8);
1170
1171 #ifdef HAVE_GFC_COMPLEX_10
1172 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1173                          const gfc_array_l1 *, const gfc_array_c10 *);
1174 internal_proto(unpack1_c10);
1175 #endif
1176
1177 #ifdef HAVE_GFC_COMPLEX_16
1178 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1179                          const gfc_array_l1 *, const gfc_array_c16 *);
1180 internal_proto(unpack1_c16);
1181 #endif
1182
1183 /* Helper functions for spread.  */
1184
1185 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1186                        const index_type, const index_type);
1187 internal_proto(spread_i1);
1188
1189 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1190                        const index_type, const index_type);
1191 internal_proto(spread_i2);
1192
1193 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1194                        const index_type, const index_type);
1195 internal_proto(spread_i4);
1196
1197 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1198                        const index_type, const index_type);
1199 internal_proto(spread_i8);
1200
1201 #ifdef HAVE_GFC_INTEGER_16
1202 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1203                        const index_type, const index_type);
1204 internal_proto(spread_i16);
1205
1206 #endif
1207
1208 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1209                        const index_type, const index_type);
1210 internal_proto(spread_r4);
1211
1212 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1213                        const index_type, const index_type);
1214 internal_proto(spread_r8);
1215
1216 #ifdef HAVE_GFC_REAL_10
1217 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1218                        const index_type, const index_type);
1219 internal_proto(spread_r10);
1220
1221 #endif
1222
1223 #ifdef HAVE_GFC_REAL_16
1224 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1225                        const index_type, const index_type);
1226 internal_proto(spread_r16);
1227
1228 #endif
1229
1230 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1231                        const index_type, const index_type);
1232 internal_proto(spread_c4);
1233
1234 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1235                        const index_type, const index_type);
1236 internal_proto(spread_c8);
1237
1238 #ifdef HAVE_GFC_COMPLEX_10
1239 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1240                        const index_type, const index_type);
1241 internal_proto(spread_c10);
1242
1243 #endif
1244
1245 #ifdef HAVE_GFC_COMPLEX_16
1246 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1247                        const index_type, const index_type);
1248 internal_proto(spread_c16);
1249
1250 #endif
1251
1252 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1253                               const index_type, const index_type);
1254 internal_proto(spread_scalar_i1);
1255
1256 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1257                               const index_type, const index_type);
1258 internal_proto(spread_scalar_i2);
1259
1260 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1261                               const index_type, const index_type);
1262 internal_proto(spread_scalar_i4);
1263
1264 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1265                               const index_type, const index_type);
1266 internal_proto(spread_scalar_i8);
1267
1268 #ifdef HAVE_GFC_INTEGER_16
1269 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1270                                const index_type, const index_type);
1271 internal_proto(spread_scalar_i16);
1272
1273 #endif
1274
1275 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1276                               const index_type, const index_type);
1277 internal_proto(spread_scalar_r4);
1278
1279 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1280                               const index_type, const index_type);
1281 internal_proto(spread_scalar_r8);
1282
1283 #ifdef HAVE_GFC_REAL_10
1284 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1285                                const index_type, const index_type);
1286 internal_proto(spread_scalar_r10);
1287
1288 #endif
1289
1290 #ifdef HAVE_GFC_REAL_16
1291 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1292                                const index_type, const index_type);
1293 internal_proto(spread_scalar_r16);
1294
1295 #endif
1296
1297 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1298                               const index_type, const index_type);
1299 internal_proto(spread_scalar_c4);
1300
1301 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1302                               const index_type, const index_type);
1303 internal_proto(spread_scalar_c8);
1304
1305 #ifdef HAVE_GFC_COMPLEX_10
1306 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1307                                const index_type, const index_type);
1308 internal_proto(spread_scalar_c10);
1309
1310 #endif
1311
1312 #ifdef HAVE_GFC_COMPLEX_16
1313 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1314                                const index_type, const index_type);
1315 internal_proto(spread_scalar_c16);
1316
1317 #endif
1318
1319 /* string_intrinsics.c */
1320
1321 extern int compare_string (gfc_charlen_type, const char *,
1322                            gfc_charlen_type, const char *);
1323 iexport_proto(compare_string);
1324
1325 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1326                                  gfc_charlen_type, const gfc_char4_t *);
1327 iexport_proto(compare_string_char4);
1328
1329 extern int memcmp_char4 (const void *, const void *, size_t);
1330 internal_proto(memcmp_char4);
1331
1332
1333 /* random.c */
1334
1335 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1336                             gfc_array_i4 * get);
1337 iexport_proto(random_seed_i4);
1338 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1339                             gfc_array_i8 * get);
1340 iexport_proto(random_seed_i8);
1341
1342 /* size.c */
1343
1344 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1345
1346 extern index_type size0 (const array_t * array);
1347 iexport_proto(size0);
1348
1349 /* bounds.c */
1350
1351 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1352                                   const char *);
1353 internal_proto(bounds_equal_extents);
1354
1355 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1356                              const char *intrinsic);
1357 internal_proto(bounds_reduced_extents);
1358
1359 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1360 internal_proto(bounds_iforeach_return);
1361
1362 extern void bounds_ifunction_return (array_t *, const index_type *,
1363                                      const char *, const char *);
1364 internal_proto(bounds_ifunction_return);
1365
1366 extern index_type count_0 (const gfc_array_l1 *);
1367
1368 internal_proto(count_0);
1369
1370 /* Internal auxiliary functions for cshift */
1371
1372 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1373 internal_proto(cshift0_i1);
1374
1375 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1376 internal_proto(cshift0_i2);
1377
1378 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1379 internal_proto(cshift0_i4);
1380
1381 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1382 internal_proto(cshift0_i8);
1383
1384 #ifdef HAVE_GFC_INTEGER_16
1385 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1386 internal_proto(cshift0_i16);
1387 #endif
1388
1389 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1390 internal_proto(cshift0_r4);
1391
1392 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1393 internal_proto(cshift0_r8);
1394
1395 #ifdef HAVE_GFC_REAL_10
1396 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1397 internal_proto(cshift0_r10);
1398 #endif
1399
1400 #ifdef HAVE_GFC_REAL_16
1401 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1402 internal_proto(cshift0_r16);
1403 #endif
1404
1405 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1406 internal_proto(cshift0_c4);
1407
1408 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1409 internal_proto(cshift0_c8);
1410
1411 #ifdef HAVE_GFC_COMPLEX_10
1412 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1413 internal_proto(cshift0_c10);
1414 #endif
1415
1416 #ifdef HAVE_GFC_COMPLEX_16
1417 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1418 internal_proto(cshift0_c16);
1419 #endif
1420
1421 #endif  /* LIBGFOR_H  */