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 #ifdef HAVE___SECURE_GETENV
 812 #define secure_getenv __secure_getenv
 813 #elif defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 814   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 815 #define FALLBACK_SECURE_GETENV
 816 extern char *secure_getenv (const char *);
 817 internal_proto(secure_getenv);
 818 #else
 819 #define secure_getenv getenv
 820 #endif
 821 #endif
 822
 823 /* string.c */
 824
 825 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 826                         const st_option *, const char *);
 827 internal_proto(find_option);
 828
 829 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 830 internal_proto(fstrlen);
 831
 832 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 833 internal_proto(fstrcpy);
 834
 835 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 836 internal_proto(cf_strcpy);
 837
 838 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 839 export_proto(string_len_trim);
 840
 841 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 842                                                const gfc_char4_t *);
 843 export_proto(string_len_trim_char4);
 844
 845 extern char *fc_strdup(const char *, gfc_charlen_type);
 846 internal_proto(fc_strdup);
 847
 848 extern char *fc_strdup_notrim(const char *, gfc_charlen_type);
 849 internal_proto(fc_strdup_notrim);
 850
 851 extern const char *gfc_itoa(GFC_INTEGER_LARGEST, char *, size_t);
 852 internal_proto(gfc_itoa);
 853
 854 /* io/intrinsics.c */
 855
 856 extern void flush_all_units (void);
 857 internal_proto(flush_all_units);
 858
 859 /* io.c */
 860
 861 extern void init_units (void);
 862 internal_proto(init_units);
 863
 864 extern void close_units (void);
 865 internal_proto(close_units);
 866
 867 extern int unit_to_fd (int);
 868 internal_proto(unit_to_fd);
 869
 870 extern char * filename_from_unit (int);
 871 internal_proto(filename_from_unit);
 872
 873 /* stop.c */
 874
 875 extern _Noreturn void stop_string (const char *, GFC_INTEGER_4);
 876 export_proto(stop_string);
 877
 878 /* reshape_packed.c */
 879
 880 extern void reshape_packed (char *, index_type, const char *, index_type,
 881                             const char *, index_type);
 882 internal_proto(reshape_packed);
 883
 884 /* Repacking functions.  These are called internally by internal_pack
 885    and internal_unpack.  */
 886
 887 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 888 internal_proto(internal_pack_1);
 889
 890 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 891 internal_proto(internal_pack_2);
 892
 893 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 894 internal_proto(internal_pack_4);
 895
 896 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 897 internal_proto(internal_pack_8);
 898
 899 #if defined HAVE_GFC_INTEGER_16
 900 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 901 internal_proto(internal_pack_16);
 902 #endif
 903
 904 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 905 internal_proto(internal_pack_r4);
 906
 907 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 908 internal_proto(internal_pack_r8);
 909
 910 #if defined HAVE_GFC_REAL_10
 911 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 912 internal_proto(internal_pack_r10);
 913 #endif
 914
 915 #if defined HAVE_GFC_REAL_16
 916 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 917 internal_proto(internal_pack_r16);
 918 #endif
 919
 920 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 921 internal_proto(internal_pack_c4);
 922
 923 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 924 internal_proto(internal_pack_c8);
 925
 926 #if defined HAVE_GFC_COMPLEX_10
 927 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 928 internal_proto(internal_pack_c10);
 929 #endif
 930
 931 #if defined HAVE_GFC_COMPLEX_16
 932 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 933 internal_proto(internal_pack_c16);
 934 #endif
 935
 936 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 937 internal_proto(internal_unpack_1);
 938
 939 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 940 internal_proto(internal_unpack_2);
 941
 942 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 943 internal_proto(internal_unpack_4);
 944
 945 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 946 internal_proto(internal_unpack_8);
 947
 948 #if defined HAVE_GFC_INTEGER_16
 949 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 950 internal_proto(internal_unpack_16);
 951 #endif
 952
 953 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 954 internal_proto(internal_unpack_r4);
 955
 956 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 957 internal_proto(internal_unpack_r8);
 958
 959 #if defined HAVE_GFC_REAL_10
 960 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 961 internal_proto(internal_unpack_r10);
 962 #endif
 963
 964 #if defined HAVE_GFC_REAL_16
 965 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 966 internal_proto(internal_unpack_r16);
 967 #endif
 968
 969 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 970 internal_proto(internal_unpack_c4);
 971
 972 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 973 internal_proto(internal_unpack_c8);
 974
 975 #if defined HAVE_GFC_COMPLEX_10
 976 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 977 internal_proto(internal_unpack_c10);
 978 #endif
 979
 980 #if defined HAVE_GFC_COMPLEX_16
 981 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 982 internal_proto(internal_unpack_c16);
 983 #endif
 984
 985 /* Internal auxiliary functions for the pack intrinsic.  */
 986
 987 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 988                      const gfc_array_l1 *, const gfc_array_i1 *);
 989 internal_proto(pack_i1);
 990
 991 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 992                      const gfc_array_l1 *, const gfc_array_i2 *);
 993 internal_proto(pack_i2);
 994
 995 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 996                      const gfc_array_l1 *, const gfc_array_i4 *);
 997 internal_proto(pack_i4);
 998
 999 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1000                      const gfc_array_l1 *, const gfc_array_i8 *);
1001 internal_proto(pack_i8);
1002
1003 #ifdef HAVE_GFC_INTEGER_16
1004 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1005                      const gfc_array_l1 *, const gfc_array_i16 *);
1006 internal_proto(pack_i16);
1007 #endif
1008
1009 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1010                      const gfc_array_l1 *, const gfc_array_r4 *);
1011 internal_proto(pack_r4);
1012
1013 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1014                      const gfc_array_l1 *, const gfc_array_r8 *);
1015 internal_proto(pack_r8);
1016
1017 #ifdef HAVE_GFC_REAL_10
1018 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1019                      const gfc_array_l1 *, const gfc_array_r10 *);
1020 internal_proto(pack_r10);
1021 #endif
1022
1023 #ifdef HAVE_GFC_REAL_16
1024 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1025                      const gfc_array_l1 *, const gfc_array_r16 *);
1026 internal_proto(pack_r16);
1027 #endif
1028
1029 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1030                      const gfc_array_l1 *, const gfc_array_c4 *);
1031 internal_proto(pack_c4);
1032
1033 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1034                      const gfc_array_l1 *, const gfc_array_c8 *);
1035 internal_proto(pack_c8);
1036
1037 #ifdef HAVE_GFC_REAL_10
1038 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1039                      const gfc_array_l1 *, const gfc_array_c10 *);
1040 internal_proto(pack_c10);
1041 #endif
1042
1043 #ifdef HAVE_GFC_REAL_16
1044 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1045                      const gfc_array_l1 *, const gfc_array_c16 *);
1046 internal_proto(pack_c16);
1047 #endif
1048
1049 /* Internal auxiliary functions for the unpack intrinsic.  */
1050
1051 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1052                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1053 internal_proto(unpack0_i1);
1054
1055 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1056                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1057 internal_proto(unpack0_i2);
1058
1059 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1060                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1061 internal_proto(unpack0_i4);
1062
1063 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1064                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1065 internal_proto(unpack0_i8);
1066
1067 #ifdef HAVE_GFC_INTEGER_16
1068
1069 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1070                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1071 internal_proto(unpack0_i16);
1072
1073 #endif
1074
1075 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1076                         const gfc_array_l1 *, const GFC_REAL_4 *);
1077 internal_proto(unpack0_r4);
1078
1079 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1080                         const gfc_array_l1 *, const GFC_REAL_8 *);
1081 internal_proto(unpack0_r8);
1082
1083 #ifdef HAVE_GFC_REAL_10
1084
1085 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1086                          const gfc_array_l1 *, const GFC_REAL_10 *);
1087 internal_proto(unpack0_r10);
1088
1089 #endif
1090
1091 #ifdef HAVE_GFC_REAL_16
1092
1093 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1094                          const gfc_array_l1 *, const GFC_REAL_16 *);
1095 internal_proto(unpack0_r16);
1096
1097 #endif
1098
1099 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1100                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1101 internal_proto(unpack0_c4);
1102
1103 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1104                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1105 internal_proto(unpack0_c8);
1106
1107 #ifdef HAVE_GFC_COMPLEX_10
1108
1109 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1110                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1111 internal_proto(unpack0_c10);
1112
1113 #endif
1114
1115 #ifdef HAVE_GFC_COMPLEX_16
1116
1117 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1118                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1119 internal_proto(unpack0_c16);
1120
1121 #endif
1122
1123 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1124                         const gfc_array_l1 *, const gfc_array_i1 *);
1125 internal_proto(unpack1_i1);
1126
1127 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1128                         const gfc_array_l1 *, const gfc_array_i2 *);
1129 internal_proto(unpack1_i2);
1130
1131 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1132                         const gfc_array_l1 *, const gfc_array_i4 *);
1133 internal_proto(unpack1_i4);
1134
1135 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1136                         const gfc_array_l1 *, const gfc_array_i8 *);
1137 internal_proto(unpack1_i8);
1138
1139 #ifdef HAVE_GFC_INTEGER_16
1140 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1141                          const gfc_array_l1 *, const gfc_array_i16 *);
1142 internal_proto(unpack1_i16);
1143 #endif
1144
1145 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1146                         const gfc_array_l1 *, const gfc_array_r4 *);
1147 internal_proto(unpack1_r4);
1148
1149 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1150                         const gfc_array_l1 *, const gfc_array_r8 *);
1151 internal_proto(unpack1_r8);
1152
1153 #ifdef HAVE_GFC_REAL_10
1154 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1155                          const gfc_array_l1 *, const gfc_array_r10 *);
1156 internal_proto(unpack1_r10);
1157 #endif
1158
1159 #ifdef HAVE_GFC_REAL_16
1160 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1161                          const gfc_array_l1 *, const gfc_array_r16 *);
1162 internal_proto(unpack1_r16);
1163 #endif
1164
1165 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1166                         const gfc_array_l1 *, const gfc_array_c4 *);
1167 internal_proto(unpack1_c4);
1168
1169 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1170                         const gfc_array_l1 *, const gfc_array_c8 *);
1171 internal_proto(unpack1_c8);
1172
1173 #ifdef HAVE_GFC_COMPLEX_10
1174 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1175                          const gfc_array_l1 *, const gfc_array_c10 *);
1176 internal_proto(unpack1_c10);
1177 #endif
1178
1179 #ifdef HAVE_GFC_COMPLEX_16
1180 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1181                          const gfc_array_l1 *, const gfc_array_c16 *);
1182 internal_proto(unpack1_c16);
1183 #endif
1184
1185 /* Helper functions for spread.  */
1186
1187 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1188                        const index_type, const index_type);
1189 internal_proto(spread_i1);
1190
1191 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1192                        const index_type, const index_type);
1193 internal_proto(spread_i2);
1194
1195 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1196                        const index_type, const index_type);
1197 internal_proto(spread_i4);
1198
1199 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1200                        const index_type, const index_type);
1201 internal_proto(spread_i8);
1202
1203 #ifdef HAVE_GFC_INTEGER_16
1204 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1205                        const index_type, const index_type);
1206 internal_proto(spread_i16);
1207
1208 #endif
1209
1210 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1211                        const index_type, const index_type);
1212 internal_proto(spread_r4);
1213
1214 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1215                        const index_type, const index_type);
1216 internal_proto(spread_r8);
1217
1218 #ifdef HAVE_GFC_REAL_10
1219 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1220                        const index_type, const index_type);
1221 internal_proto(spread_r10);
1222
1223 #endif
1224
1225 #ifdef HAVE_GFC_REAL_16
1226 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1227                        const index_type, const index_type);
1228 internal_proto(spread_r16);
1229
1230 #endif
1231
1232 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1233                        const index_type, const index_type);
1234 internal_proto(spread_c4);
1235
1236 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1237                        const index_type, const index_type);
1238 internal_proto(spread_c8);
1239
1240 #ifdef HAVE_GFC_COMPLEX_10
1241 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1242                        const index_type, const index_type);
1243 internal_proto(spread_c10);
1244
1245 #endif
1246
1247 #ifdef HAVE_GFC_COMPLEX_16
1248 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1249                        const index_type, const index_type);
1250 internal_proto(spread_c16);
1251
1252 #endif
1253
1254 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1255                               const index_type, const index_type);
1256 internal_proto(spread_scalar_i1);
1257
1258 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1259                               const index_type, const index_type);
1260 internal_proto(spread_scalar_i2);
1261
1262 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1263                               const index_type, const index_type);
1264 internal_proto(spread_scalar_i4);
1265
1266 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1267                               const index_type, const index_type);
1268 internal_proto(spread_scalar_i8);
1269
1270 #ifdef HAVE_GFC_INTEGER_16
1271 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1272                                const index_type, const index_type);
1273 internal_proto(spread_scalar_i16);
1274
1275 #endif
1276
1277 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1278                               const index_type, const index_type);
1279 internal_proto(spread_scalar_r4);
1280
1281 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1282                               const index_type, const index_type);
1283 internal_proto(spread_scalar_r8);
1284
1285 #ifdef HAVE_GFC_REAL_10
1286 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1287                                const index_type, const index_type);
1288 internal_proto(spread_scalar_r10);
1289
1290 #endif
1291
1292 #ifdef HAVE_GFC_REAL_16
1293 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1294                                const index_type, const index_type);
1295 internal_proto(spread_scalar_r16);
1296
1297 #endif
1298
1299 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1300                               const index_type, const index_type);
1301 internal_proto(spread_scalar_c4);
1302
1303 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1304                               const index_type, const index_type);
1305 internal_proto(spread_scalar_c8);
1306
1307 #ifdef HAVE_GFC_COMPLEX_10
1308 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1309                                const index_type, const index_type);
1310 internal_proto(spread_scalar_c10);
1311
1312 #endif
1313
1314 #ifdef HAVE_GFC_COMPLEX_16
1315 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1316                                const index_type, const index_type);
1317 internal_proto(spread_scalar_c16);
1318
1319 #endif
1320
1321 /* string_intrinsics.c */
1322
1323 extern int compare_string (gfc_charlen_type, const char *,
1324                            gfc_charlen_type, const char *);
1325 iexport_proto(compare_string);
1326
1327 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1328                                  gfc_charlen_type, const gfc_char4_t *);
1329 iexport_proto(compare_string_char4);
1330
1331 extern int memcmp_char4 (const void *, const void *, size_t);
1332 internal_proto(memcmp_char4);
1333
1334
1335 /* random.c */
1336
1337 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1338                             gfc_array_i4 * get);
1339 iexport_proto(random_seed_i4);
1340 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1341                             gfc_array_i8 * get);
1342 iexport_proto(random_seed_i8);
1343
1344 /* size.c */
1345
1346 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1347
1348 extern index_type size0 (const array_t * array);
1349 iexport_proto(size0);
1350
1351 /* bounds.c */
1352
1353 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1354                                   const char *);
1355 internal_proto(bounds_equal_extents);
1356
1357 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1358                              const char *intrinsic);
1359 internal_proto(bounds_reduced_extents);
1360
1361 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1362 internal_proto(bounds_iforeach_return);
1363
1364 extern void bounds_ifunction_return (array_t *, const index_type *,
1365                                      const char *, const char *);
1366 internal_proto(bounds_ifunction_return);
1367
1368 extern index_type count_0 (const gfc_array_l1 *);
1369
1370 internal_proto(count_0);
1371
1372 /* Internal auxiliary functions for cshift */
1373
1374 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1375 internal_proto(cshift0_i1);
1376
1377 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1378 internal_proto(cshift0_i2);
1379
1380 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1381 internal_proto(cshift0_i4);
1382
1383 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1384 internal_proto(cshift0_i8);
1385
1386 #ifdef HAVE_GFC_INTEGER_16
1387 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1388 internal_proto(cshift0_i16);
1389 #endif
1390
1391 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1392 internal_proto(cshift0_r4);
1393
1394 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1395 internal_proto(cshift0_r8);
1396
1397 #ifdef HAVE_GFC_REAL_10
1398 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1399 internal_proto(cshift0_r10);
1400 #endif
1401
1402 #ifdef HAVE_GFC_REAL_16
1403 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1404 internal_proto(cshift0_r16);
1405 #endif
1406
1407 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1408 internal_proto(cshift0_c4);
1409
1410 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1411 internal_proto(cshift0_c8);
1412
1413 #ifdef HAVE_GFC_COMPLEX_10
1414 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1415 internal_proto(cshift0_c10);
1416 #endif
1417
1418 #ifdef HAVE_GFC_COMPLEX_16
1419 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1420 internal_proto(cshift0_c16);
1421 #endif
1422
1423 #endif  /* LIBGFOR_H  */