libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002-2014 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 <stddef.h>
  44 #include <float.h>
  45 #include <stdarg.h>
  46 #include <stdbool.h>
  47
  48 #if HAVE_COMPLEX_H
  49 /* Must appear before math.h on VMS systems.  */
  50 # include <complex.h>
  51 #else
  52 #define complex __complex__
  53 #endif
  54
  55 #include <math.h>
  56
  57 /* If we're support quad-precision floating-point type, include the
  58    header to our support library.  */
  59 #ifdef HAVE_FLOAT128
  60 #  include "quadmath_weak.h"
  61 #endif
  62
  63 #ifdef __MINGW32__
  64 extern float __strtof (const char *, char **);
  65 #define gfc_strtof __strtof
  66 extern double __strtod (const char *, char **);
  67 #define gfc_strtod __strtod
  68 extern long double __strtold (const char *, char **);
  69 #define gfc_strtold __strtold
  70 #else
  71 #define gfc_strtof strtof
  72 #define gfc_strtod strtod
  73 #define gfc_strtold strtold
  74 #endif
  75
  76 #include "../gcc/fortran/libgfortran.h"
  77
  78 #include "c99_protos.h"
  79
  80 #if HAVE_IEEEFP_H
  81 #include <ieeefp.h>
  82 #endif
  83
  84 #include "gstdint.h"
  85
  86 #if HAVE_SYS_TYPES_H
  87 #include <sys/types.h>
  88 #endif
  89
  90 #ifdef __MINGW32__
  91 typedef off64_t gfc_offset;
  92 #else
  93 typedef off_t gfc_offset;
  94 #endif
  95
  96 #ifndef NULL
  97 #define NULL (void *) 0
  98 #endif
  99
 100
 101 /* The following macros can be used to annotate conditions which are likely or
 102    unlikely to be true.  Avoid using them when a condition is only slightly
 103    more likely/less unlikely than average to avoid the performance penalties of
 104    branch misprediction. In addition, as __builtin_expect overrides the compiler
 105    heuristic, do not use in conditions where one of the branches ends with a
 106    call to a function with __attribute__((noreturn)): the compiler internal
 107    heuristic will mark this branch as much less likely as unlikely() would
 108    do.  */
 109
 110 #define likely(x)       __builtin_expect(!!(x), 1)
 111 #define unlikely(x)     __builtin_expect(!!(x), 0)
 112
 113
 114 /* Make sure we have ptrdiff_t. */
 115 #ifndef HAVE_PTRDIFF_T
 116 typedef intptr_t ptrdiff_t;
 117 #endif
 118
 119 /* On mingw, work around the buggy Windows snprintf() by using the one
 120    mingw provides, __mingw_snprintf().  We also provide a prototype for
 121    __mingw_snprintf(), because the mingw headers currently don't have one.  */
 122 #if HAVE_MINGW_SNPRINTF
 123 extern int __mingw_snprintf (char *, size_t, const char *, ...)
 124      __attribute__ ((format (gnu_printf, 3, 4)));
 125 #undef snprintf
 126 #define snprintf __mingw_snprintf
 127 /* Fallback to sprintf if target does not have snprintf.  */
 128 #elif !defined(HAVE_SNPRINTF)
 129 #undef snprintf
 130 #define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)
 131 #endif
 132
 133
 134 /* For a library, a standard prefix is a requirement in order to partition
 135    the namespace.  IPREFIX is for symbols intended to be internal to the
 136    library.  */
 137 #define PREFIX(x)       _gfortran_ ## x
 138 #define IPREFIX(x)      _gfortrani_ ## x
 139
 140 /* Magic to rename a symbol at the compiler level.  You continue to refer
 141    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
 142 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
 143 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
 144 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
 145
 146 /* There are several classifications of routines:
 147
 148      (1) Symbols used only within the library,
 149      (2) Symbols to be exported from the library,
 150      (3) Symbols to be exported from the library, but
 151          also used inside the library.
 152
 153    By telling the compiler about these different classifications we can
 154    tightly control the interface seen by the user, and get better code
 155    from the compiler at the same time.
 156
 157    One of the following should be used immediately after the declaration
 158    of each symbol:
 159
 160      internal_proto     Marks a symbol used only within the library,
 161                         and adds IPREFIX to the assembly-level symbol
 162                         name.  The later is important for maintaining
 163                         the namespace partition for the static library.
 164
 165      export_proto       Marks a symbol to be exported, and adds PREFIX
 166                         to the assembly-level symbol name.
 167
 168      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 169
 170      iexport_proto      Marks a function to be exported, but with the
 171                         understanding that it can be used inside as well.
 172
 173      iexport_data_proto Similarly, marks a data symbol to be exported.
 174                         Unfortunately, some systems can't play the hidden
 175                         symbol renaming trick on data symbols, thanks to
 176                         the horribleness of COPY relocations.
 177
 178    If iexport_proto or iexport_data_proto is used, you must also use
 179    iexport or iexport_data after the *definition* of the symbol.  */
 180
 181 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 182 # define internal_proto(x) \
 183         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 184 #else
 185 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 186 #endif
 187
 188 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 189 # define export_proto(x)        sym_rename(x, PREFIX(x))
 190 # define export_proto_np(x)     extern char swallow_semicolon
 191 # define iexport_proto(x)       internal_proto(x)
 192 # define iexport(x)             iexport1(x, IPREFIX(x))
 193 # define iexport1(x,y)          iexport2(x,y)
 194 # define iexport2(x,y) \
 195         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 196 #else
 197 # define export_proto(x)        sym_rename(x, PREFIX(x))
 198 # define export_proto_np(x)     extern char swallow_semicolon
 199 # define iexport_proto(x)       export_proto(x)
 200 # define iexport(x)             extern char swallow_semicolon
 201 #endif
 202
 203 /* TODO: detect the case when we *can* hide the symbol.  */
 204 #define iexport_data_proto(x)   export_proto(x)
 205 #define iexport_data(x)         extern char swallow_semicolon
 206
 207 /* The only reliable way to get the offset of a field in a struct
 208    in a system independent way is via this macro.  */
 209 #ifndef offsetof
 210 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 211 #endif
 212
 213 /* The C99 classification macros isfinite, isinf, isnan, isnormal
 214    and signbit are broken or inconsistent on quite a few targets.
 215    So, we use GCC's builtins instead.
 216
 217    Another advantage for GCC's builtins for these type-generic macros
 218    is that it handles floating-point types that the system headers
 219    may not support (like __float128).  */
 220
 221 #undef isnan
 222 #define isnan(x) __builtin_isnan(x)
 223 #undef isfinite
 224 #define isfinite(x) __builtin_isfinite(x)
 225 #undef isinf
 226 #define isinf(x) __builtin_isinf(x)
 227 #undef isnormal
 228 #define isnormal(x) __builtin_isnormal(x)
 229 #undef signbit
 230 #define signbit(x) __builtin_signbit(x)
 231
 232 #include "kinds.h"
 233
 234 /* Define the type used for the current record number for large file I/O.
 235    The size must be consistent with the size defined on the compiler side.  */
 236 #ifdef HAVE_GFC_INTEGER_8
 237 typedef GFC_INTEGER_8 GFC_IO_INT;
 238 #else
 239 #ifdef HAVE_GFC_INTEGER_4
 240 typedef GFC_INTEGER_4 GFC_IO_INT;
 241 #else
 242 #error "GFC_INTEGER_4 should be available for the library to compile".
 243 #endif
 244 #endif
 245
 246 /* The following two definitions must be consistent with the types used
 247    by the compiler.  */
 248 /* The type used of array indices, amongst other things.  */
 249 typedef ptrdiff_t index_type;
 250
 251 /* The type used for the lengths of character variables.  */
 252 typedef GFC_INTEGER_4 gfc_charlen_type;
 253
 254 /* Definitions of CHARACTER data types:
 255      - CHARACTER(KIND=1) corresponds to the C char type,
 256      - CHARACTER(KIND=4) corresponds to an unsigned 32-bit integer.  */
 257 typedef GFC_UINTEGER_4 gfc_char4_t;
 258
 259 /* Byte size of character kinds.  For the kinds currently supported, it's
 260    simply equal to the kind parameter itself.  */
 261 #define GFC_SIZE_OF_CHAR_KIND(kind) (kind)
 262
 263 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 264 extern int big_endian;
 265 internal_proto(big_endian);
 266
 267 #define GFOR_POINTER_TO_L1(p, kind) \
 268   (big_endian * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 269
 270 #define GFC_INTEGER_1_HUGE \
 271   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 272 #define GFC_INTEGER_2_HUGE \
 273   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 274 #define GFC_INTEGER_4_HUGE \
 275   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 276 #define GFC_INTEGER_8_HUGE \
 277   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 278 #ifdef HAVE_GFC_INTEGER_16
 279 #define GFC_INTEGER_16_HUGE \
 280   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 281 #endif
 282
 283 /* M{IN,AX}{LOC,VAL} need also infinities and NaNs if supported.  */
 284
 285 #ifdef __FLT_HAS_INFINITY__
 286 # define GFC_REAL_4_INFINITY __builtin_inff ()
 287 #endif
 288 #ifdef __DBL_HAS_INFINITY__
 289 # define GFC_REAL_8_INFINITY __builtin_inf ()
 290 #endif
 291 #ifdef __LDBL_HAS_INFINITY__
 292 # ifdef HAVE_GFC_REAL_10
 293 #  define GFC_REAL_10_INFINITY __builtin_infl ()
 294 # endif
 295 # ifdef HAVE_GFC_REAL_16
 296 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 297 #   define GFC_REAL_16_INFINITY __builtin_infl ()
 298 #  else
 299 #   define GFC_REAL_16_INFINITY __builtin_infq ()
 300 #  endif
 301 # endif
 302 #endif
 303 #ifdef __FLT_HAS_QUIET_NAN__
 304 # define GFC_REAL_4_QUIET_NAN __builtin_nanf ("")
 305 #endif
 306 #ifdef __DBL_HAS_QUIET_NAN__
 307 # define GFC_REAL_8_QUIET_NAN __builtin_nan ("")
 308 #endif
 309 #ifdef __LDBL_HAS_QUIET_NAN__
 310 # ifdef HAVE_GFC_REAL_10
 311 #  define GFC_REAL_10_QUIET_NAN __builtin_nanl ("")
 312 # endif
 313 # ifdef HAVE_GFC_REAL_16
 314 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 315 #   define GFC_REAL_16_QUIET_NAN __builtin_nanl ("")
 316 #  else
 317 #   define GFC_REAL_16_QUIET_NAN nanq ("")
 318 #  endif
 319 # endif
 320 #endif
 321
 322 typedef struct descriptor_dimension
 323 {
 324   index_type _stride;
 325   index_type lower_bound;
 326   index_type _ubound;
 327 }
 328
 329 descriptor_dimension;
 330
 331 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 332 struct {\
 333   type *base_addr;\
 334   size_t offset;\
 335   index_type dtype;\
 336   descriptor_dimension dim[r];\
 337 }
 338
 339 /* Commonly used array descriptor types.  */
 340 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 341 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 342 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 343 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 344 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 345 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 346 #ifdef HAVE_GFC_INTEGER_16
 347 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 348 #endif
 349 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 350 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 351 #ifdef HAVE_GFC_REAL_10
 352 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 353 #endif
 354 #ifdef HAVE_GFC_REAL_16
 355 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 356 #endif
 357 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 358 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 359 #ifdef HAVE_GFC_COMPLEX_10
 360 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 361 #endif
 362 #ifdef HAVE_GFC_COMPLEX_16
 363 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 364 #endif
 365 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 366 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 367 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 368 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 369 #ifdef HAVE_GFC_LOGICAL_16
 370 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 371 #endif
 372
 373
 374 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 375 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 376                                    >> GFC_DTYPE_TYPE_SHIFT)
 377 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 378 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->base_addr)
 379 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 380
 381 #define GFC_DIMENSION_LBOUND(dim) ((dim).lower_bound)
 382 #define GFC_DIMENSION_UBOUND(dim) ((dim)._ubound)
 383 #define GFC_DIMENSION_STRIDE(dim) ((dim)._stride)
 384 #define GFC_DIMENSION_EXTENT(dim) ((dim)._ubound + 1 - (dim).lower_bound)
 385 #define GFC_DIMENSION_SET(dim,lb,ub,str) \
 386   do \
 387     { \
 388       (dim).lower_bound = lb;                   \
 389       (dim)._ubound = ub;                       \
 390       (dim)._stride = str;                      \
 391     } while (0)
 392
 393
 394 #define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i].lower_bound)
 395 #define GFC_DESCRIPTOR_UBOUND(desc,i) ((desc)->dim[i]._ubound)
 396 #define GFC_DESCRIPTOR_EXTENT(desc,i) ((desc)->dim[i]._ubound + 1 \
 397                                       - (desc)->dim[i].lower_bound)
 398 #define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \
 399   (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 400
 401 #define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)
 402 #define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \
 403   (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 404
 405 /* Macros to get both the size and the type with a single masking operation  */
 406
 407 #define GFC_DTYPE_SIZE_MASK \
 408   ((~((index_type) 0) >> GFC_DTYPE_SIZE_SHIFT) << GFC_DTYPE_SIZE_SHIFT)
 409 #define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)
 410
 411 #define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)
 412
 413 #define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 414    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 415 #define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 416    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 417 #define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 418    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 419 #define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 420    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 421 #ifdef HAVE_GFC_INTEGER_16
 422 #define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 423    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 424 #endif
 425
 426 #define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 427    | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))
 428 #define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 429    | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))
 430 #define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 431    | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))
 432 #define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 433    | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))
 434 #ifdef HAVE_GFC_LOGICAL_16
 435 #define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 436    | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))
 437 #endif
 438
 439 #define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 440    | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))
 441 #define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 442    | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))
 443 #ifdef HAVE_GFC_REAL_10
 444 #define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 445    | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))
 446 #endif
 447 #ifdef HAVE_GFC_REAL_16
 448 #define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 449    | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))
 450 #endif
 451
 452 #define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 453    | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))
 454 #define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 455    | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))
 456 #ifdef HAVE_GFC_COMPLEX_10
 457 #define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 458    | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))
 459 #endif
 460 #ifdef HAVE_GFC_COMPLEX_16
 461 #define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 462    | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))
 463 #endif
 464
 465 #define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 466    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 467 #define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 468    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 469 #define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 470    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 471 #define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 472    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 473 #ifdef HAVE_GFC_INTEGER_16
 474 #define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 475    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 476 #endif
 477
 478 /* Macros to determine the alignment of pointers.  */
 479
 480 #define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \
 481                             (__alignof__(GFC_INTEGER_2) - 1))
 482 #define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \
 483                             (__alignof__(GFC_INTEGER_4) - 1))
 484 #define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \
 485                             (__alignof__(GFC_INTEGER_8) - 1))
 486 #ifdef HAVE_GFC_INTEGER_16
 487 #define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \
 488                              (__alignof__(GFC_INTEGER_16) - 1))
 489 #endif
 490
 491 #define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \
 492                              (__alignof__(GFC_COMPLEX_4) - 1))
 493
 494 #define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \
 495                              (__alignof__(GFC_COMPLEX_8) - 1))
 496
 497 /* Runtime library include.  */
 498 #define stringize(x) expand_macro(x)
 499 #define expand_macro(x) # x
 500
 501 /* Runtime options structure.  */
 502
 503 typedef struct
 504 {
 505   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 506   int locus;
 507
 508   int separator_len;
 509   const char *separator;
 510
 511   int all_unbuffered, unbuffered_preconnected, default_recl;
 512   int fpe, backtrace;
 513 }
 514 options_t;
 515
 516 extern options_t options;
 517 internal_proto(options);
 518
 519 extern void backtrace_handler (int);
 520 internal_proto(backtrace_handler);
 521
 522
 523 /* Compile-time options that will influence the library.  */
 524
 525 typedef struct
 526 {
 527   int warn_std;
 528   int allow_std;
 529   int pedantic;
 530   int convert;
 531   int backtrace;
 532   int sign_zero;
 533   size_t record_marker;
 534   int max_subrecord_length;
 535   int bounds_check;
 536   int fpe_summary;
 537 }
 538 compile_options_t;
 539
 540 extern compile_options_t compile_options;
 541 internal_proto(compile_options);
 542
 543 extern void init_compile_options (void);
 544 internal_proto(init_compile_options);
 545
 546 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 547
 548 /* Structure for statement options.  */
 549
 550 typedef struct
 551 {
 552   const char *name;
 553   int value;
 554 }
 555 st_option;
 556
 557
 558 /* This is returned by notification_std to know if, given the flags
 559    that were given (-std=, -pedantic) we should issue an error, a warning
 560    or nothing.  */
 561 typedef enum
 562 { NOTIFICATION_SILENT, NOTIFICATION_WARNING, NOTIFICATION_ERROR }
 563 notification;
 564
 565
 566 /* The filename and line number don't go inside the globals structure.
 567    They are set by the rest of the program and must be linked to.  */
 568
 569 /* Location of the current library call (optional).  */
 570 extern unsigned line;
 571 iexport_data_proto(line);
 572
 573 extern char *filename;
 574 iexport_data_proto(filename);
 575
 576 /* Avoid conflicting prototypes of alloca() in system headers by using
 577    GCC's builtin alloca().  */
 578 #define gfc_alloca(x)  __builtin_alloca(x)
 579
 580
 581 /* The default value of record length for preconnected units is defined
 582    here. This value can be overriden by an environment variable.
 583    Default value is 1 Gb.  */
 584 #define DEFAULT_RECL 1073741824
 585
 586
 587 #define CHARACTER2(name) \
 588               gfc_charlen_type name ## _len; \
 589               char * name
 590
 591 typedef struct st_parameter_common
 592 {
 593   GFC_INTEGER_4 flags;
 594   GFC_INTEGER_4 unit;
 595   const char *filename;
 596   GFC_INTEGER_4 line;
 597   CHARACTER2 (iomsg);
 598   GFC_INTEGER_4 *iostat;
 599 }
 600 st_parameter_common;
 601
 602 #undef CHARACTER2
 603
 604 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 605 #define IOPARM_LIBRETURN_OK             (0 << 0)
 606 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 607 #define IOPARM_LIBRETURN_END            (2 << 0)
 608 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 609 #define IOPARM_ERR                      (1 << 2)
 610 #define IOPARM_END                      (1 << 3)
 611 #define IOPARM_EOR                      (1 << 4)
 612 #define IOPARM_HAS_IOSTAT               (1 << 5)
 613 #define IOPARM_HAS_IOMSG                (1 << 6)
 614
 615 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 616
 617 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 618 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 619 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 620 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 621 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 622 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 623 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 624 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 625 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 626 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 627 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 628 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 629 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 630 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 631 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 632 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 633 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 634
 635 /* library start function and end macro.  These can be expanded if needed
 636    in the future.  cmp is st_parameter_common *cmp  */
 637
 638 extern void library_start (st_parameter_common *);
 639 internal_proto(library_start);
 640
 641 #define library_end()
 642
 643 /* main.c */
 644
 645 extern void stupid_function_name_for_static_linking (void);
 646 internal_proto(stupid_function_name_for_static_linking);
 647
 648 extern void set_args (int, char **);
 649 iexport_proto(set_args);
 650
 651 extern void get_args (int *, char ***);
 652 internal_proto(get_args);
 653
 654 extern void store_exe_path (const char *);
 655 export_proto(store_exe_path);
 656
 657 extern char * full_exe_path (void);
 658 internal_proto(full_exe_path);
 659
 660 extern void find_addr2line (void);
 661 internal_proto(find_addr2line);
 662
 663 /* backtrace.c */
 664
 665 extern void backtrace (void);
 666 iexport_proto(backtrace);
 667
 668 /* error.c */
 669
 670 #if defined(HAVE_GFC_REAL_16)
 671 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 672 #elif defined(HAVE_GFC_INTEGER_16)
 673 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 674 #elif defined(HAVE_GFC_REAL_10)
 675 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 676 #else
 677 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 678 #endif
 679
 680 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 681 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 682 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 683 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 684
 685 extern _Noreturn void sys_abort (void);
 686 internal_proto(sys_abort);
 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 /* memory.c */
 779
 780 extern void *xmalloc (size_t) __attribute__ ((malloc));
 781 internal_proto(xmalloc);
 782
 783 extern void *xmallocarray (size_t, size_t) __attribute__ ((malloc));
 784 internal_proto(xmallocarray);
 785
 786 extern void *xcalloc (size_t, size_t) __attribute__ ((malloc));
 787 internal_proto(xcalloc);
 788
 789 extern void *xrealloc (void *, size_t);
 790 internal_proto(xrealloc);
 791
 792 /* environ.c */
 793
 794 extern int check_buffered (int);
 795 internal_proto(check_buffered);
 796
 797 extern void init_variables (void);
 798 internal_proto(init_variables);
 799
 800 extern void show_variables (void);
 801 internal_proto(show_variables);
 802
 803 unit_convert get_unformatted_convert (int);
 804 internal_proto(get_unformatted_convert);
 805
 806 /* Secure getenv() which returns NULL if running as SUID/SGID.  */
 807 #ifndef HAVE_SECURE_GETENV
 808 #ifdef HAVE___SECURE_GETENV
 809 #define secure_getenv __secure_getenv
 810 #elif defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 811   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 812 #define FALLBACK_SECURE_GETENV
 813 extern char *secure_getenv (const char *);
 814 internal_proto(secure_getenv);
 815 #else
 816 #define secure_getenv getenv
 817 #endif
 818 #endif
 819
 820 /* string.c */
 821
 822 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 823                         const st_option *, const char *);
 824 internal_proto(find_option);
 825
 826 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 827 internal_proto(fstrlen);
 828
 829 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 830 internal_proto(fstrcpy);
 831
 832 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 833 internal_proto(cf_strcpy);
 834
 835 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 836 export_proto(string_len_trim);
 837
 838 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 839                                                const gfc_char4_t *);
 840 export_proto(string_len_trim_char4);
 841
 842 extern char *fc_strdup(const char *, gfc_charlen_type);
 843 internal_proto(fc_strdup);
 844
 845 /* io/intrinsics.c */
 846
 847 extern void flush_all_units (void);
 848 internal_proto(flush_all_units);
 849
 850 /* io.c */
 851
 852 extern void init_units (void);
 853 internal_proto(init_units);
 854
 855 extern void close_units (void);
 856 internal_proto(close_units);
 857
 858 extern int unit_to_fd (int);
 859 internal_proto(unit_to_fd);
 860
 861 extern char * filename_from_unit (int);
 862 internal_proto(filename_from_unit);
 863
 864 /* stop.c */
 865
 866 extern _Noreturn void stop_string (const char *, GFC_INTEGER_4);
 867 export_proto(stop_string);
 868
 869 /* reshape_packed.c */
 870
 871 extern void reshape_packed (char *, index_type, const char *, index_type,
 872                             const char *, index_type);
 873 internal_proto(reshape_packed);
 874
 875 /* Repacking functions.  These are called internally by internal_pack
 876    and internal_unpack.  */
 877
 878 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 879 internal_proto(internal_pack_1);
 880
 881 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 882 internal_proto(internal_pack_2);
 883
 884 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 885 internal_proto(internal_pack_4);
 886
 887 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 888 internal_proto(internal_pack_8);
 889
 890 #if defined HAVE_GFC_INTEGER_16
 891 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 892 internal_proto(internal_pack_16);
 893 #endif
 894
 895 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 896 internal_proto(internal_pack_r4);
 897
 898 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 899 internal_proto(internal_pack_r8);
 900
 901 #if defined HAVE_GFC_REAL_10
 902 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 903 internal_proto(internal_pack_r10);
 904 #endif
 905
 906 #if defined HAVE_GFC_REAL_16
 907 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 908 internal_proto(internal_pack_r16);
 909 #endif
 910
 911 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 912 internal_proto(internal_pack_c4);
 913
 914 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 915 internal_proto(internal_pack_c8);
 916
 917 #if defined HAVE_GFC_COMPLEX_10
 918 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 919 internal_proto(internal_pack_c10);
 920 #endif
 921
 922 #if defined HAVE_GFC_COMPLEX_16
 923 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 924 internal_proto(internal_pack_c16);
 925 #endif
 926
 927 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 928 internal_proto(internal_unpack_1);
 929
 930 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 931 internal_proto(internal_unpack_2);
 932
 933 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 934 internal_proto(internal_unpack_4);
 935
 936 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 937 internal_proto(internal_unpack_8);
 938
 939 #if defined HAVE_GFC_INTEGER_16
 940 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 941 internal_proto(internal_unpack_16);
 942 #endif
 943
 944 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 945 internal_proto(internal_unpack_r4);
 946
 947 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 948 internal_proto(internal_unpack_r8);
 949
 950 #if defined HAVE_GFC_REAL_10
 951 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 952 internal_proto(internal_unpack_r10);
 953 #endif
 954
 955 #if defined HAVE_GFC_REAL_16
 956 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 957 internal_proto(internal_unpack_r16);
 958 #endif
 959
 960 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 961 internal_proto(internal_unpack_c4);
 962
 963 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 964 internal_proto(internal_unpack_c8);
 965
 966 #if defined HAVE_GFC_COMPLEX_10
 967 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 968 internal_proto(internal_unpack_c10);
 969 #endif
 970
 971 #if defined HAVE_GFC_COMPLEX_16
 972 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 973 internal_proto(internal_unpack_c16);
 974 #endif
 975
 976 /* Internal auxiliary functions for the pack intrinsic.  */
 977
 978 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 979                      const gfc_array_l1 *, const gfc_array_i1 *);
 980 internal_proto(pack_i1);
 981
 982 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 983                      const gfc_array_l1 *, const gfc_array_i2 *);
 984 internal_proto(pack_i2);
 985
 986 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 987                      const gfc_array_l1 *, const gfc_array_i4 *);
 988 internal_proto(pack_i4);
 989
 990 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 991                      const gfc_array_l1 *, const gfc_array_i8 *);
 992 internal_proto(pack_i8);
 993
 994 #ifdef HAVE_GFC_INTEGER_16
 995 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
 996                      const gfc_array_l1 *, const gfc_array_i16 *);
 997 internal_proto(pack_i16);
 998 #endif
 999
1000 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1001                      const gfc_array_l1 *, const gfc_array_r4 *);
1002 internal_proto(pack_r4);
1003
1004 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1005                      const gfc_array_l1 *, const gfc_array_r8 *);
1006 internal_proto(pack_r8);
1007
1008 #ifdef HAVE_GFC_REAL_10
1009 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1010                      const gfc_array_l1 *, const gfc_array_r10 *);
1011 internal_proto(pack_r10);
1012 #endif
1013
1014 #ifdef HAVE_GFC_REAL_16
1015 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1016                      const gfc_array_l1 *, const gfc_array_r16 *);
1017 internal_proto(pack_r16);
1018 #endif
1019
1020 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1021                      const gfc_array_l1 *, const gfc_array_c4 *);
1022 internal_proto(pack_c4);
1023
1024 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1025                      const gfc_array_l1 *, const gfc_array_c8 *);
1026 internal_proto(pack_c8);
1027
1028 #ifdef HAVE_GFC_REAL_10
1029 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1030                      const gfc_array_l1 *, const gfc_array_c10 *);
1031 internal_proto(pack_c10);
1032 #endif
1033
1034 #ifdef HAVE_GFC_REAL_16
1035 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1036                      const gfc_array_l1 *, const gfc_array_c16 *);
1037 internal_proto(pack_c16);
1038 #endif
1039
1040 /* Internal auxiliary functions for the unpack intrinsic.  */
1041
1042 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1043                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1044 internal_proto(unpack0_i1);
1045
1046 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1047                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1048 internal_proto(unpack0_i2);
1049
1050 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1051                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1052 internal_proto(unpack0_i4);
1053
1054 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1055                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1056 internal_proto(unpack0_i8);
1057
1058 #ifdef HAVE_GFC_INTEGER_16
1059
1060 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1061                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1062 internal_proto(unpack0_i16);
1063
1064 #endif
1065
1066 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1067                         const gfc_array_l1 *, const GFC_REAL_4 *);
1068 internal_proto(unpack0_r4);
1069
1070 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1071                         const gfc_array_l1 *, const GFC_REAL_8 *);
1072 internal_proto(unpack0_r8);
1073
1074 #ifdef HAVE_GFC_REAL_10
1075
1076 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1077                          const gfc_array_l1 *, const GFC_REAL_10 *);
1078 internal_proto(unpack0_r10);
1079
1080 #endif
1081
1082 #ifdef HAVE_GFC_REAL_16
1083
1084 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1085                          const gfc_array_l1 *, const GFC_REAL_16 *);
1086 internal_proto(unpack0_r16);
1087
1088 #endif
1089
1090 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1091                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1092 internal_proto(unpack0_c4);
1093
1094 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1095                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1096 internal_proto(unpack0_c8);
1097
1098 #ifdef HAVE_GFC_COMPLEX_10
1099
1100 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1101                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1102 internal_proto(unpack0_c10);
1103
1104 #endif
1105
1106 #ifdef HAVE_GFC_COMPLEX_16
1107
1108 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1109                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1110 internal_proto(unpack0_c16);
1111
1112 #endif
1113
1114 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1115                         const gfc_array_l1 *, const gfc_array_i1 *);
1116 internal_proto(unpack1_i1);
1117
1118 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1119                         const gfc_array_l1 *, const gfc_array_i2 *);
1120 internal_proto(unpack1_i2);
1121
1122 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1123                         const gfc_array_l1 *, const gfc_array_i4 *);
1124 internal_proto(unpack1_i4);
1125
1126 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1127                         const gfc_array_l1 *, const gfc_array_i8 *);
1128 internal_proto(unpack1_i8);
1129
1130 #ifdef HAVE_GFC_INTEGER_16
1131 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1132                          const gfc_array_l1 *, const gfc_array_i16 *);
1133 internal_proto(unpack1_i16);
1134 #endif
1135
1136 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1137                         const gfc_array_l1 *, const gfc_array_r4 *);
1138 internal_proto(unpack1_r4);
1139
1140 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1141                         const gfc_array_l1 *, const gfc_array_r8 *);
1142 internal_proto(unpack1_r8);
1143
1144 #ifdef HAVE_GFC_REAL_10
1145 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1146                          const gfc_array_l1 *, const gfc_array_r10 *);
1147 internal_proto(unpack1_r10);
1148 #endif
1149
1150 #ifdef HAVE_GFC_REAL_16
1151 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1152                          const gfc_array_l1 *, const gfc_array_r16 *);
1153 internal_proto(unpack1_r16);
1154 #endif
1155
1156 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1157                         const gfc_array_l1 *, const gfc_array_c4 *);
1158 internal_proto(unpack1_c4);
1159
1160 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1161                         const gfc_array_l1 *, const gfc_array_c8 *);
1162 internal_proto(unpack1_c8);
1163
1164 #ifdef HAVE_GFC_COMPLEX_10
1165 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1166                          const gfc_array_l1 *, const gfc_array_c10 *);
1167 internal_proto(unpack1_c10);
1168 #endif
1169
1170 #ifdef HAVE_GFC_COMPLEX_16
1171 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1172                          const gfc_array_l1 *, const gfc_array_c16 *);
1173 internal_proto(unpack1_c16);
1174 #endif
1175
1176 /* Helper functions for spread.  */
1177
1178 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1179                        const index_type, const index_type);
1180 internal_proto(spread_i1);
1181
1182 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1183                        const index_type, const index_type);
1184 internal_proto(spread_i2);
1185
1186 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1187                        const index_type, const index_type);
1188 internal_proto(spread_i4);
1189
1190 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1191                        const index_type, const index_type);
1192 internal_proto(spread_i8);
1193
1194 #ifdef HAVE_GFC_INTEGER_16
1195 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1196                        const index_type, const index_type);
1197 internal_proto(spread_i16);
1198
1199 #endif
1200
1201 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1202                        const index_type, const index_type);
1203 internal_proto(spread_r4);
1204
1205 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1206                        const index_type, const index_type);
1207 internal_proto(spread_r8);
1208
1209 #ifdef HAVE_GFC_REAL_10
1210 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1211                        const index_type, const index_type);
1212 internal_proto(spread_r10);
1213
1214 #endif
1215
1216 #ifdef HAVE_GFC_REAL_16
1217 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1218                        const index_type, const index_type);
1219 internal_proto(spread_r16);
1220
1221 #endif
1222
1223 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1224                        const index_type, const index_type);
1225 internal_proto(spread_c4);
1226
1227 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1228                        const index_type, const index_type);
1229 internal_proto(spread_c8);
1230
1231 #ifdef HAVE_GFC_COMPLEX_10
1232 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1233                        const index_type, const index_type);
1234 internal_proto(spread_c10);
1235
1236 #endif
1237
1238 #ifdef HAVE_GFC_COMPLEX_16
1239 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1240                        const index_type, const index_type);
1241 internal_proto(spread_c16);
1242
1243 #endif
1244
1245 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1246                               const index_type, const index_type);
1247 internal_proto(spread_scalar_i1);
1248
1249 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1250                               const index_type, const index_type);
1251 internal_proto(spread_scalar_i2);
1252
1253 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1254                               const index_type, const index_type);
1255 internal_proto(spread_scalar_i4);
1256
1257 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1258                               const index_type, const index_type);
1259 internal_proto(spread_scalar_i8);
1260
1261 #ifdef HAVE_GFC_INTEGER_16
1262 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1263                                const index_type, const index_type);
1264 internal_proto(spread_scalar_i16);
1265
1266 #endif
1267
1268 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1269                               const index_type, const index_type);
1270 internal_proto(spread_scalar_r4);
1271
1272 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1273                               const index_type, const index_type);
1274 internal_proto(spread_scalar_r8);
1275
1276 #ifdef HAVE_GFC_REAL_10
1277 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1278                                const index_type, const index_type);
1279 internal_proto(spread_scalar_r10);
1280
1281 #endif
1282
1283 #ifdef HAVE_GFC_REAL_16
1284 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1285                                const index_type, const index_type);
1286 internal_proto(spread_scalar_r16);
1287
1288 #endif
1289
1290 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1291                               const index_type, const index_type);
1292 internal_proto(spread_scalar_c4);
1293
1294 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1295                               const index_type, const index_type);
1296 internal_proto(spread_scalar_c8);
1297
1298 #ifdef HAVE_GFC_COMPLEX_10
1299 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1300                                const index_type, const index_type);
1301 internal_proto(spread_scalar_c10);
1302
1303 #endif
1304
1305 #ifdef HAVE_GFC_COMPLEX_16
1306 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1307                                const index_type, const index_type);
1308 internal_proto(spread_scalar_c16);
1309
1310 #endif
1311
1312 /* string_intrinsics.c */
1313
1314 extern int compare_string (gfc_charlen_type, const char *,
1315                            gfc_charlen_type, const char *);
1316 iexport_proto(compare_string);
1317
1318 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1319                                  gfc_charlen_type, const gfc_char4_t *);
1320 iexport_proto(compare_string_char4);
1321
1322 extern int memcmp_char4 (const void *, const void *, size_t);
1323 internal_proto(memcmp_char4);
1324
1325
1326 /* random.c */
1327
1328 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1329                             gfc_array_i4 * get);
1330 iexport_proto(random_seed_i4);
1331 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1332                             gfc_array_i8 * get);
1333 iexport_proto(random_seed_i8);
1334
1335 /* size.c */
1336
1337 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1338
1339 extern index_type size0 (const array_t * array);
1340 iexport_proto(size0);
1341
1342 /* bounds.c */
1343
1344 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1345                                   const char *);
1346 internal_proto(bounds_equal_extents);
1347
1348 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1349                              const char *intrinsic);
1350 internal_proto(bounds_reduced_extents);
1351
1352 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1353 internal_proto(bounds_iforeach_return);
1354
1355 extern void bounds_ifunction_return (array_t *, const index_type *,
1356                                      const char *, const char *);
1357 internal_proto(bounds_ifunction_return);
1358
1359 extern index_type count_0 (const gfc_array_l1 *);
1360
1361 internal_proto(count_0);
1362
1363 /* Internal auxiliary functions for cshift */
1364
1365 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1366 internal_proto(cshift0_i1);
1367
1368 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1369 internal_proto(cshift0_i2);
1370
1371 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1372 internal_proto(cshift0_i4);
1373
1374 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1375 internal_proto(cshift0_i8);
1376
1377 #ifdef HAVE_GFC_INTEGER_16
1378 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1379 internal_proto(cshift0_i16);
1380 #endif
1381
1382 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1383 internal_proto(cshift0_r4);
1384
1385 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1386 internal_proto(cshift0_r8);
1387
1388 #ifdef HAVE_GFC_REAL_10
1389 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1390 internal_proto(cshift0_r10);
1391 #endif
1392
1393 #ifdef HAVE_GFC_REAL_16
1394 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1395 internal_proto(cshift0_r16);
1396 #endif
1397
1398 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1399 internal_proto(cshift0_c4);
1400
1401 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1402 internal_proto(cshift0_c8);
1403
1404 #ifdef HAVE_GFC_COMPLEX_10
1405 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1406 internal_proto(cshift0_c10);
1407 #endif
1408
1409 #ifdef HAVE_GFC_COMPLEX_16
1410 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1411 internal_proto(cshift0_c16);
1412 #endif
1413
1414 #endif  /* LIBGFOR_H  */