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
 115 /* Make sure we have ptrdiff_t. */
 116 #ifndef HAVE_PTRDIFF_T
 117 typedef intptr_t ptrdiff_t;
 118 #endif
 119
 120 /* On mingw, work around the buggy Windows snprintf() by using the one
 121    mingw provides, __mingw_snprintf().  We also provide a prototype for
 122    __mingw_snprintf(), because the mingw headers currently don't have one.  */
 123 #if HAVE_MINGW_SNPRINTF
 124 extern int __mingw_snprintf (char *, size_t, const char *, ...)
 125      __attribute__ ((format (gnu_printf, 3, 4)));
 126 #undef snprintf
 127 #define snprintf __mingw_snprintf
 128 /* Fallback to sprintf if target does not have snprintf.  */
 129 #elif !defined(HAVE_SNPRINTF)
 130 #undef snprintf
 131 #define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)
 132 #endif
 133
 134
 135 /* For a library, a standard prefix is a requirement in order to partition
 136    the namespace.  IPREFIX is for symbols intended to be internal to the
 137    library.  */
 138 #define PREFIX(x)       _gfortran_ ## x
 139 #define IPREFIX(x)      _gfortrani_ ## x
 140
 141 /* Magic to rename a symbol at the compiler level.  You continue to refer
 142    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
 143 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
 144 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
 145 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
 146
 147 /* There are several classifications of routines:
 148
 149      (1) Symbols used only within the library,
 150      (2) Symbols to be exported from the library,
 151      (3) Symbols to be exported from the library, but
 152          also used inside the library.
 153
 154    By telling the compiler about these different classifications we can
 155    tightly control the interface seen by the user, and get better code
 156    from the compiler at the same time.
 157
 158    One of the following should be used immediately after the declaration
 159    of each symbol:
 160
 161      internal_proto     Marks a symbol used only within the library,
 162                         and adds IPREFIX to the assembly-level symbol
 163                         name.  The later is important for maintaining
 164                         the namespace partition for the static library.
 165
 166      export_proto       Marks a symbol to be exported, and adds PREFIX
 167                         to the assembly-level symbol name.
 168
 169      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 170
 171      iexport_proto      Marks a function to be exported, but with the
 172                         understanding that it can be used inside as well.
 173
 174      iexport_data_proto Similarly, marks a data symbol to be exported.
 175                         Unfortunately, some systems can't play the hidden
 176                         symbol renaming trick on data symbols, thanks to
 177                         the horribleness of COPY relocations.
 178
 179    If iexport_proto or iexport_data_proto is used, you must also use
 180    iexport or iexport_data after the *definition* of the symbol.  */
 181
 182 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 183 # define internal_proto(x) \
 184         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 185 #else
 186 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 187 #endif
 188
 189 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 190 # define export_proto(x)        sym_rename(x, PREFIX(x))
 191 # define export_proto_np(x)     extern char swallow_semicolon
 192 # define iexport_proto(x)       internal_proto(x)
 193 # define iexport(x)             iexport1(x, IPREFIX(x))
 194 # define iexport1(x,y)          iexport2(x,y)
 195 # define iexport2(x,y) \
 196         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 197 #else
 198 # define export_proto(x)        sym_rename(x, PREFIX(x))
 199 # define export_proto_np(x)     extern char swallow_semicolon
 200 # define iexport_proto(x)       export_proto(x)
 201 # define iexport(x)             extern char swallow_semicolon
 202 #endif
 203
 204 /* TODO: detect the case when we *can* hide the symbol.  */
 205 #define iexport_data_proto(x)   export_proto(x)
 206 #define iexport_data(x)         extern char swallow_semicolon
 207
 208 /* The only reliable way to get the offset of a field in a struct
 209    in a system independent way is via this macro.  */
 210 #ifndef offsetof
 211 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 212 #endif
 213
 214 /* The C99 classification macros isfinite, isinf, isnan, isnormal
 215    and signbit are broken or inconsistent on quite a few targets.
 216    So, we use GCC's builtins instead.
 217
 218    Another advantage for GCC's builtins for these type-generic macros
 219    is that it handles floating-point types that the system headers
 220    may not support (like __float128).  */
 221
 222 #undef isnan
 223 #define isnan(x) __builtin_isnan(x)
 224 #undef isfinite
 225 #define isfinite(x) __builtin_isfinite(x)
 226 #undef isinf
 227 #define isinf(x) __builtin_isinf(x)
 228 #undef isnormal
 229 #define isnormal(x) __builtin_isnormal(x)
 230 #undef signbit
 231 #define signbit(x) __builtin_signbit(x)
 232
 233 #include "kinds.h"
 234
 235 /* Define the type used for the current record number for large file I/O.
 236    The size must be consistent with the size defined on the compiler side.  */
 237 #ifdef HAVE_GFC_INTEGER_8
 238 typedef GFC_INTEGER_8 GFC_IO_INT;
 239 #else
 240 #ifdef HAVE_GFC_INTEGER_4
 241 typedef GFC_INTEGER_4 GFC_IO_INT;
 242 #else
 243 #error "GFC_INTEGER_4 should be available for the library to compile".
 244 #endif
 245 #endif
 246
 247 /* The following two definitions must be consistent with the types used
 248    by the compiler.  */
 249 /* The type used of array indices, amongst other things.  */
 250 typedef ptrdiff_t index_type;
 251
 252 /* The type used for the lengths of character variables.  */
 253 typedef GFC_INTEGER_4 gfc_charlen_type;
 254
 255 /* Definitions of CHARACTER data types:
 256      - CHARACTER(KIND=1) corresponds to the C char type,
 257      - CHARACTER(KIND=4) corresponds to an unsigned 32-bit integer.  */
 258 typedef GFC_UINTEGER_4 gfc_char4_t;
 259
 260 /* Byte size of character kinds.  For the kinds currently supported, it's
 261    simply equal to the kind parameter itself.  */
 262 #define GFC_SIZE_OF_CHAR_KIND(kind) (kind)
 263
 264 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 265 extern int big_endian;
 266 internal_proto(big_endian);
 267
 268 #define GFOR_POINTER_TO_L1(p, kind) \
 269   (big_endian * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 270
 271 #define GFC_INTEGER_1_HUGE \
 272   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 273 #define GFC_INTEGER_2_HUGE \
 274   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 275 #define GFC_INTEGER_4_HUGE \
 276   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 277 #define GFC_INTEGER_8_HUGE \
 278   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 279 #ifdef HAVE_GFC_INTEGER_16
 280 #define GFC_INTEGER_16_HUGE \
 281   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 282 #endif
 283
 284 /* M{IN,AX}{LOC,VAL} need also infinities and NaNs if supported.  */
 285
 286 #ifdef __FLT_HAS_INFINITY__
 287 # define GFC_REAL_4_INFINITY __builtin_inff ()
 288 #endif
 289 #ifdef __DBL_HAS_INFINITY__
 290 # define GFC_REAL_8_INFINITY __builtin_inf ()
 291 #endif
 292 #ifdef __LDBL_HAS_INFINITY__
 293 # ifdef HAVE_GFC_REAL_10
 294 #  define GFC_REAL_10_INFINITY __builtin_infl ()
 295 # endif
 296 # ifdef HAVE_GFC_REAL_16
 297 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 298 #   define GFC_REAL_16_INFINITY __builtin_infl ()
 299 #  else
 300 #   define GFC_REAL_16_INFINITY __builtin_infq ()
 301 #  endif
 302 # endif
 303 #endif
 304 #ifdef __FLT_HAS_QUIET_NAN__
 305 # define GFC_REAL_4_QUIET_NAN __builtin_nanf ("")
 306 #endif
 307 #ifdef __DBL_HAS_QUIET_NAN__
 308 # define GFC_REAL_8_QUIET_NAN __builtin_nan ("")
 309 #endif
 310 #ifdef __LDBL_HAS_QUIET_NAN__
 311 # ifdef HAVE_GFC_REAL_10
 312 #  define GFC_REAL_10_QUIET_NAN __builtin_nanl ("")
 313 # endif
 314 # ifdef HAVE_GFC_REAL_16
 315 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 316 #   define GFC_REAL_16_QUIET_NAN __builtin_nanl ("")
 317 #  else
 318 #   define GFC_REAL_16_QUIET_NAN nanq ("")
 319 #  endif
 320 # endif
 321 #endif
 322
 323 typedef struct descriptor_dimension
 324 {
 325   index_type _stride;
 326   index_type lower_bound;
 327   index_type _ubound;
 328 }
 329
 330 descriptor_dimension;
 331
 332 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 333 struct {\
 334   type *base_addr;\
 335   size_t offset;\
 336   index_type dtype;\
 337   descriptor_dimension dim[r];\
 338 }
 339
 340 /* Commonly used array descriptor types.  */
 341 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 342 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 343 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 344 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 345 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 346 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 347 #ifdef HAVE_GFC_INTEGER_16
 348 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 349 #endif
 350 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 351 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 352 #ifdef HAVE_GFC_REAL_10
 353 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 354 #endif
 355 #ifdef HAVE_GFC_REAL_16
 356 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 357 #endif
 358 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 359 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 360 #ifdef HAVE_GFC_COMPLEX_10
 361 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 362 #endif
 363 #ifdef HAVE_GFC_COMPLEX_16
 364 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 365 #endif
 366 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 367 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 368 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 369 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 370 #ifdef HAVE_GFC_LOGICAL_16
 371 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 372 #endif
 373
 374
 375 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 376 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 377                                    >> GFC_DTYPE_TYPE_SHIFT)
 378 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 379 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->base_addr)
 380 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 381
 382 #define GFC_DIMENSION_LBOUND(dim) ((dim).lower_bound)
 383 #define GFC_DIMENSION_UBOUND(dim) ((dim)._ubound)
 384 #define GFC_DIMENSION_STRIDE(dim) ((dim)._stride)
 385 #define GFC_DIMENSION_EXTENT(dim) ((dim)._ubound + 1 - (dim).lower_bound)
 386 #define GFC_DIMENSION_SET(dim,lb,ub,str) \
 387   do \
 388     { \
 389       (dim).lower_bound = lb;                   \
 390       (dim)._ubound = ub;                       \
 391       (dim)._stride = str;                      \
 392     } while (0)
 393
 394
 395 #define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i].lower_bound)
 396 #define GFC_DESCRIPTOR_UBOUND(desc,i) ((desc)->dim[i]._ubound)
 397 #define GFC_DESCRIPTOR_EXTENT(desc,i) ((desc)->dim[i]._ubound + 1 \
 398                                       - (desc)->dim[i].lower_bound)
 399 #define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \
 400   (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 401
 402 #define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)
 403 #define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \
 404   (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 405
 406 /* Macros to get both the size and the type with a single masking operation  */
 407
 408 #define GFC_DTYPE_SIZE_MASK (-((index_type) 1 << 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
 577 /* The default value of record length for preconnected units is defined
 578    here. This value can be overriden by an environment variable.
 579    Default value is 1 Gb.  */
 580 #define DEFAULT_RECL 1073741824
 581
 582
 583 #define CHARACTER2(name) \
 584               gfc_charlen_type name ## _len; \
 585               char * name
 586
 587 typedef struct st_parameter_common
 588 {
 589   GFC_INTEGER_4 flags;
 590   GFC_INTEGER_4 unit;
 591   const char *filename;
 592   GFC_INTEGER_4 line;
 593   CHARACTER2 (iomsg);
 594   GFC_INTEGER_4 *iostat;
 595 }
 596 st_parameter_common;
 597
 598 #undef CHARACTER2
 599
 600 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 601 #define IOPARM_LIBRETURN_OK             (0 << 0)
 602 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 603 #define IOPARM_LIBRETURN_END            (2 << 0)
 604 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 605 #define IOPARM_ERR                      (1 << 2)
 606 #define IOPARM_END                      (1 << 3)
 607 #define IOPARM_EOR                      (1 << 4)
 608 #define IOPARM_HAS_IOSTAT               (1 << 5)
 609 #define IOPARM_HAS_IOMSG                (1 << 6)
 610
 611 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 612
 613 /* Make sure to keep in sync with io/io.h (st_parameter_open).  */
 614 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 615 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 616 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 617 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 618 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 619 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 620 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 621 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 622 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 623 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 624 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 625 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 626 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 627 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 628 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 629 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 630 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 631 #define IOPARM_OPEN_HAS_READONLY        (1 << 24)
 632 #define IOPARM_OPEN_HAS_CC              (1 << 25)
 633 #define IOPARM_OPEN_HAS_SHARE           (1 << 26)
 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 /* backtrace.c */
 655
 656 extern void show_backtrace (bool);
 657 internal_proto(show_backtrace);
 658
 659
 660 /* error.c */
 661
 662 #if defined(HAVE_GFC_REAL_16)
 663 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 664 #elif defined(HAVE_GFC_INTEGER_16)
 665 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 666 #elif defined(HAVE_GFC_REAL_10)
 667 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 668 #else
 669 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 670 #endif
 671
 672 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 673 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 674 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 675 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 676
 677 extern _Noreturn void sys_abort (void);
 678 internal_proto(sys_abort);
 679
 680 extern _Noreturn void exit_error (int);
 681 internal_proto(exit_error);
 682
 683 extern ssize_t estr_write (const char *);
 684 internal_proto(estr_write);
 685
 686 extern int st_vprintf (const char *, va_list);
 687 internal_proto(st_vprintf);
 688
 689 extern int st_printf (const char *, ...)
 690   __attribute__((format (gfc_printf, 1, 2)));
 691 internal_proto(st_printf);
 692
 693 extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 694 internal_proto(gfc_xtoa);
 695
 696 extern _Noreturn void os_error (const char *);
 697 iexport_proto(os_error);
 698
 699 extern void show_locus (st_parameter_common *);
 700 internal_proto(show_locus);
 701
 702 extern _Noreturn void runtime_error (const char *, ...)
 703      __attribute__ ((format (gfc_printf, 1, 2)));
 704 iexport_proto(runtime_error);
 705
 706 extern _Noreturn void runtime_error_at (const char *, const char *, ...)
 707      __attribute__ ((format (gfc_printf, 2, 3)));
 708 iexport_proto(runtime_error_at);
 709
 710 extern void runtime_warning_at (const char *, const char *, ...)
 711      __attribute__ ((format (gfc_printf, 2, 3)));
 712 iexport_proto(runtime_warning_at);
 713
 714 extern _Noreturn void internal_error (st_parameter_common *, const char *);
 715 internal_proto(internal_error);
 716
 717 extern const char *translate_error (int);
 718 internal_proto(translate_error);
 719
 720 extern void generate_error (st_parameter_common *, int, const char *);
 721 iexport_proto(generate_error);
 722
 723 extern void generate_warning (st_parameter_common *, const char *);
 724 internal_proto(generate_warning);
 725
 726 extern bool notify_std (st_parameter_common *, int, const char *);
 727 internal_proto(notify_std);
 728
 729 extern notification notification_std(int);
 730 internal_proto(notification_std);
 731
 732 extern char *gf_strerror (int, char *, size_t);
 733 internal_proto(gf_strerror);
 734
 735 /* fpu.c */
 736
 737 extern void set_fpu (void);
 738 internal_proto(set_fpu);
 739
 740 extern int get_fpu_trap_exceptions (void);
 741 internal_proto(get_fpu_trap_exceptions);
 742
 743 extern void set_fpu_trap_exceptions (int, int);
 744 internal_proto(set_fpu_trap_exceptions);
 745
 746 extern int support_fpu_trap (int);
 747 internal_proto(support_fpu_trap);
 748
 749 extern int get_fpu_except_flags (void);
 750 internal_proto(get_fpu_except_flags);
 751
 752 extern void set_fpu_except_flags (int, int);
 753 internal_proto(set_fpu_except_flags);
 754
 755 extern int support_fpu_flag (int);
 756 internal_proto(support_fpu_flag);
 757
 758 extern void set_fpu_rounding_mode (int);
 759 internal_proto(set_fpu_rounding_mode);
 760
 761 extern int get_fpu_rounding_mode (void);
 762 internal_proto(get_fpu_rounding_mode);
 763
 764 extern int support_fpu_rounding_mode (int);
 765 internal_proto(support_fpu_rounding_mode);
 766
 767 extern void get_fpu_state (void *);
 768 internal_proto(get_fpu_state);
 769
 770 extern void set_fpu_state (void *);
 771 internal_proto(set_fpu_state);
 772
 773 extern int get_fpu_underflow_mode (void);
 774 internal_proto(get_fpu_underflow_mode);
 775
 776 extern void set_fpu_underflow_mode (int);
 777 internal_proto(set_fpu_underflow_mode);
 778
 779 extern int support_fpu_underflow_control (int);
 780 internal_proto(support_fpu_underflow_control);
 781
 782 /* memory.c */
 783
 784 extern void *xmalloc (size_t) __attribute__ ((malloc));
 785 internal_proto(xmalloc);
 786
 787 extern void *xmallocarray (size_t, size_t) __attribute__ ((malloc));
 788 internal_proto(xmallocarray);
 789
 790 extern void *xcalloc (size_t, size_t) __attribute__ ((malloc));
 791 internal_proto(xcalloc);
 792
 793 extern void *xrealloc (void *, size_t);
 794 internal_proto(xrealloc);
 795
 796 /* environ.c */
 797
 798 extern void init_variables (void);
 799 internal_proto(init_variables);
 800
 801 unit_convert get_unformatted_convert (int);
 802 internal_proto(get_unformatted_convert);
 803
 804 /* Secure getenv() which returns NULL if running as SUID/SGID.  */
 805 #ifndef HAVE_SECURE_GETENV
 806 #ifdef HAVE___SECURE_GETENV
 807 #define secure_getenv __secure_getenv
 808 #elif defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 809   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 810 #define FALLBACK_SECURE_GETENV
 811 extern char *secure_getenv (const char *);
 812 internal_proto(secure_getenv);
 813 #else
 814 #define secure_getenv getenv
 815 #endif
 816 #endif
 817
 818 /* string.c */
 819
 820 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 821                         const st_option *, const char *);
 822 internal_proto(find_option);
 823
 824 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 825 internal_proto(fstrlen);
 826
 827 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 828 internal_proto(fstrcpy);
 829
 830 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 831 internal_proto(cf_strcpy);
 832
 833 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 834 export_proto(string_len_trim);
 835
 836 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 837                                                const gfc_char4_t *);
 838 export_proto(string_len_trim_char4);
 839
 840 extern char *fc_strdup(const char *, gfc_charlen_type);
 841 internal_proto(fc_strdup);
 842
 843 extern char *fc_strdup_notrim(const char *, gfc_charlen_type);
 844 internal_proto(fc_strdup_notrim);
 845
 846 extern const char *gfc_itoa(GFC_INTEGER_LARGEST, char *, size_t);
 847 internal_proto(gfc_itoa);
 848
 849 /* io/intrinsics.c */
 850
 851 extern void flush_all_units (void);
 852 internal_proto(flush_all_units);
 853
 854 /* io.c */
 855
 856 extern void init_units (void);
 857 internal_proto(init_units);
 858
 859 extern void close_units (void);
 860 internal_proto(close_units);
 861
 862 extern int unit_to_fd (int);
 863 internal_proto(unit_to_fd);
 864
 865 extern char * filename_from_unit (int);
 866 internal_proto(filename_from_unit);
 867
 868 /* stop.c */
 869
 870 extern _Noreturn void stop_string (const char *, GFC_INTEGER_4);
 871 export_proto(stop_string);
 872
 873 /* reshape_packed.c */
 874
 875 extern void reshape_packed (char *, index_type, const char *, index_type,
 876                             const char *, index_type);
 877 internal_proto(reshape_packed);
 878
 879 /* Repacking functions.  These are called internally by internal_pack
 880    and internal_unpack.  */
 881
 882 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 883 internal_proto(internal_pack_1);
 884
 885 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 886 internal_proto(internal_pack_2);
 887
 888 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 889 internal_proto(internal_pack_4);
 890
 891 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 892 internal_proto(internal_pack_8);
 893
 894 #if defined HAVE_GFC_INTEGER_16
 895 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 896 internal_proto(internal_pack_16);
 897 #endif
 898
 899 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 900 internal_proto(internal_pack_r4);
 901
 902 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 903 internal_proto(internal_pack_r8);
 904
 905 #if defined HAVE_GFC_REAL_10
 906 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 907 internal_proto(internal_pack_r10);
 908 #endif
 909
 910 #if defined HAVE_GFC_REAL_16
 911 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 912 internal_proto(internal_pack_r16);
 913 #endif
 914
 915 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 916 internal_proto(internal_pack_c4);
 917
 918 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 919 internal_proto(internal_pack_c8);
 920
 921 #if defined HAVE_GFC_COMPLEX_10
 922 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 923 internal_proto(internal_pack_c10);
 924 #endif
 925
 926 #if defined HAVE_GFC_COMPLEX_16
 927 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 928 internal_proto(internal_pack_c16);
 929 #endif
 930
 931 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 932 internal_proto(internal_unpack_1);
 933
 934 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 935 internal_proto(internal_unpack_2);
 936
 937 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 938 internal_proto(internal_unpack_4);
 939
 940 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 941 internal_proto(internal_unpack_8);
 942
 943 #if defined HAVE_GFC_INTEGER_16
 944 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 945 internal_proto(internal_unpack_16);
 946 #endif
 947
 948 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 949 internal_proto(internal_unpack_r4);
 950
 951 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 952 internal_proto(internal_unpack_r8);
 953
 954 #if defined HAVE_GFC_REAL_10
 955 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 956 internal_proto(internal_unpack_r10);
 957 #endif
 958
 959 #if defined HAVE_GFC_REAL_16
 960 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 961 internal_proto(internal_unpack_r16);
 962 #endif
 963
 964 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 965 internal_proto(internal_unpack_c4);
 966
 967 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 968 internal_proto(internal_unpack_c8);
 969
 970 #if defined HAVE_GFC_COMPLEX_10
 971 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 972 internal_proto(internal_unpack_c10);
 973 #endif
 974
 975 #if defined HAVE_GFC_COMPLEX_16
 976 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 977 internal_proto(internal_unpack_c16);
 978 #endif
 979
 980 /* Internal auxiliary functions for the pack intrinsic.  */
 981
 982 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 983                      const gfc_array_l1 *, const gfc_array_i1 *);
 984 internal_proto(pack_i1);
 985
 986 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 987                      const gfc_array_l1 *, const gfc_array_i2 *);
 988 internal_proto(pack_i2);
 989
 990 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 991                      const gfc_array_l1 *, const gfc_array_i4 *);
 992 internal_proto(pack_i4);
 993
 994 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 995                      const gfc_array_l1 *, const gfc_array_i8 *);
 996 internal_proto(pack_i8);
 997
 998 #ifdef HAVE_GFC_INTEGER_16
 999 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1000                      const gfc_array_l1 *, const gfc_array_i16 *);
1001 internal_proto(pack_i16);
1002 #endif
1003
1004 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1005                      const gfc_array_l1 *, const gfc_array_r4 *);
1006 internal_proto(pack_r4);
1007
1008 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1009                      const gfc_array_l1 *, const gfc_array_r8 *);
1010 internal_proto(pack_r8);
1011
1012 #ifdef HAVE_GFC_REAL_10
1013 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1014                      const gfc_array_l1 *, const gfc_array_r10 *);
1015 internal_proto(pack_r10);
1016 #endif
1017
1018 #ifdef HAVE_GFC_REAL_16
1019 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1020                      const gfc_array_l1 *, const gfc_array_r16 *);
1021 internal_proto(pack_r16);
1022 #endif
1023
1024 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1025                      const gfc_array_l1 *, const gfc_array_c4 *);
1026 internal_proto(pack_c4);
1027
1028 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1029                      const gfc_array_l1 *, const gfc_array_c8 *);
1030 internal_proto(pack_c8);
1031
1032 #ifdef HAVE_GFC_REAL_10
1033 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1034                      const gfc_array_l1 *, const gfc_array_c10 *);
1035 internal_proto(pack_c10);
1036 #endif
1037
1038 #ifdef HAVE_GFC_REAL_16
1039 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1040                      const gfc_array_l1 *, const gfc_array_c16 *);
1041 internal_proto(pack_c16);
1042 #endif
1043
1044 /* Internal auxiliary functions for the unpack intrinsic.  */
1045
1046 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1047                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1048 internal_proto(unpack0_i1);
1049
1050 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1051                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1052 internal_proto(unpack0_i2);
1053
1054 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1055                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1056 internal_proto(unpack0_i4);
1057
1058 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1059                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1060 internal_proto(unpack0_i8);
1061
1062 #ifdef HAVE_GFC_INTEGER_16
1063
1064 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1065                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1066 internal_proto(unpack0_i16);
1067
1068 #endif
1069
1070 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1071                         const gfc_array_l1 *, const GFC_REAL_4 *);
1072 internal_proto(unpack0_r4);
1073
1074 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1075                         const gfc_array_l1 *, const GFC_REAL_8 *);
1076 internal_proto(unpack0_r8);
1077
1078 #ifdef HAVE_GFC_REAL_10
1079
1080 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1081                          const gfc_array_l1 *, const GFC_REAL_10 *);
1082 internal_proto(unpack0_r10);
1083
1084 #endif
1085
1086 #ifdef HAVE_GFC_REAL_16
1087
1088 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1089                          const gfc_array_l1 *, const GFC_REAL_16 *);
1090 internal_proto(unpack0_r16);
1091
1092 #endif
1093
1094 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1095                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1096 internal_proto(unpack0_c4);
1097
1098 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1099                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1100 internal_proto(unpack0_c8);
1101
1102 #ifdef HAVE_GFC_COMPLEX_10
1103
1104 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1105                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1106 internal_proto(unpack0_c10);
1107
1108 #endif
1109
1110 #ifdef HAVE_GFC_COMPLEX_16
1111
1112 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1113                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1114 internal_proto(unpack0_c16);
1115
1116 #endif
1117
1118 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1119                         const gfc_array_l1 *, const gfc_array_i1 *);
1120 internal_proto(unpack1_i1);
1121
1122 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1123                         const gfc_array_l1 *, const gfc_array_i2 *);
1124 internal_proto(unpack1_i2);
1125
1126 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1127                         const gfc_array_l1 *, const gfc_array_i4 *);
1128 internal_proto(unpack1_i4);
1129
1130 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1131                         const gfc_array_l1 *, const gfc_array_i8 *);
1132 internal_proto(unpack1_i8);
1133
1134 #ifdef HAVE_GFC_INTEGER_16
1135 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1136                          const gfc_array_l1 *, const gfc_array_i16 *);
1137 internal_proto(unpack1_i16);
1138 #endif
1139
1140 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1141                         const gfc_array_l1 *, const gfc_array_r4 *);
1142 internal_proto(unpack1_r4);
1143
1144 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1145                         const gfc_array_l1 *, const gfc_array_r8 *);
1146 internal_proto(unpack1_r8);
1147
1148 #ifdef HAVE_GFC_REAL_10
1149 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1150                          const gfc_array_l1 *, const gfc_array_r10 *);
1151 internal_proto(unpack1_r10);
1152 #endif
1153
1154 #ifdef HAVE_GFC_REAL_16
1155 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1156                          const gfc_array_l1 *, const gfc_array_r16 *);
1157 internal_proto(unpack1_r16);
1158 #endif
1159
1160 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1161                         const gfc_array_l1 *, const gfc_array_c4 *);
1162 internal_proto(unpack1_c4);
1163
1164 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1165                         const gfc_array_l1 *, const gfc_array_c8 *);
1166 internal_proto(unpack1_c8);
1167
1168 #ifdef HAVE_GFC_COMPLEX_10
1169 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1170                          const gfc_array_l1 *, const gfc_array_c10 *);
1171 internal_proto(unpack1_c10);
1172 #endif
1173
1174 #ifdef HAVE_GFC_COMPLEX_16
1175 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1176                          const gfc_array_l1 *, const gfc_array_c16 *);
1177 internal_proto(unpack1_c16);
1178 #endif
1179
1180 /* Helper functions for spread.  */
1181
1182 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1183                        const index_type, const index_type);
1184 internal_proto(spread_i1);
1185
1186 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1187                        const index_type, const index_type);
1188 internal_proto(spread_i2);
1189
1190 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1191                        const index_type, const index_type);
1192 internal_proto(spread_i4);
1193
1194 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1195                        const index_type, const index_type);
1196 internal_proto(spread_i8);
1197
1198 #ifdef HAVE_GFC_INTEGER_16
1199 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1200                        const index_type, const index_type);
1201 internal_proto(spread_i16);
1202
1203 #endif
1204
1205 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1206                        const index_type, const index_type);
1207 internal_proto(spread_r4);
1208
1209 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1210                        const index_type, const index_type);
1211 internal_proto(spread_r8);
1212
1213 #ifdef HAVE_GFC_REAL_10
1214 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1215                        const index_type, const index_type);
1216 internal_proto(spread_r10);
1217
1218 #endif
1219
1220 #ifdef HAVE_GFC_REAL_16
1221 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1222                        const index_type, const index_type);
1223 internal_proto(spread_r16);
1224
1225 #endif
1226
1227 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1228                        const index_type, const index_type);
1229 internal_proto(spread_c4);
1230
1231 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1232                        const index_type, const index_type);
1233 internal_proto(spread_c8);
1234
1235 #ifdef HAVE_GFC_COMPLEX_10
1236 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1237                        const index_type, const index_type);
1238 internal_proto(spread_c10);
1239
1240 #endif
1241
1242 #ifdef HAVE_GFC_COMPLEX_16
1243 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1244                        const index_type, const index_type);
1245 internal_proto(spread_c16);
1246
1247 #endif
1248
1249 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1250                               const index_type, const index_type);
1251 internal_proto(spread_scalar_i1);
1252
1253 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1254                               const index_type, const index_type);
1255 internal_proto(spread_scalar_i2);
1256
1257 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1258                               const index_type, const index_type);
1259 internal_proto(spread_scalar_i4);
1260
1261 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1262                               const index_type, const index_type);
1263 internal_proto(spread_scalar_i8);
1264
1265 #ifdef HAVE_GFC_INTEGER_16
1266 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1267                                const index_type, const index_type);
1268 internal_proto(spread_scalar_i16);
1269
1270 #endif
1271
1272 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1273                               const index_type, const index_type);
1274 internal_proto(spread_scalar_r4);
1275
1276 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1277                               const index_type, const index_type);
1278 internal_proto(spread_scalar_r8);
1279
1280 #ifdef HAVE_GFC_REAL_10
1281 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1282                                const index_type, const index_type);
1283 internal_proto(spread_scalar_r10);
1284
1285 #endif
1286
1287 #ifdef HAVE_GFC_REAL_16
1288 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1289                                const index_type, const index_type);
1290 internal_proto(spread_scalar_r16);
1291
1292 #endif
1293
1294 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1295                               const index_type, const index_type);
1296 internal_proto(spread_scalar_c4);
1297
1298 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1299                               const index_type, const index_type);
1300 internal_proto(spread_scalar_c8);
1301
1302 #ifdef HAVE_GFC_COMPLEX_10
1303 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1304                                const index_type, const index_type);
1305 internal_proto(spread_scalar_c10);
1306
1307 #endif
1308
1309 #ifdef HAVE_GFC_COMPLEX_16
1310 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1311                                const index_type, const index_type);
1312 internal_proto(spread_scalar_c16);
1313
1314 #endif
1315
1316 /* string_intrinsics.c */
1317
1318 extern int compare_string (gfc_charlen_type, const char *,
1319                            gfc_charlen_type, const char *);
1320 iexport_proto(compare_string);
1321
1322 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1323                                  gfc_charlen_type, const gfc_char4_t *);
1324 iexport_proto(compare_string_char4);
1325
1326 extern int memcmp_char4 (const void *, const void *, size_t);
1327 internal_proto(memcmp_char4);
1328
1329
1330 /* random.c */
1331
1332 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1333                             gfc_array_i4 * get);
1334 iexport_proto(random_seed_i4);
1335 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1336                             gfc_array_i8 * get);
1337 iexport_proto(random_seed_i8);
1338
1339 /* size.c */
1340
1341 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1342
1343 extern index_type size0 (const array_t * array);
1344 iexport_proto(size0);
1345
1346 /* bounds.c */
1347
1348 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1349                                   const char *);
1350 internal_proto(bounds_equal_extents);
1351
1352 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1353                              const char *intrinsic);
1354 internal_proto(bounds_reduced_extents);
1355
1356 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1357 internal_proto(bounds_iforeach_return);
1358
1359 extern void bounds_ifunction_return (array_t *, const index_type *,
1360                                      const char *, const char *);
1361 internal_proto(bounds_ifunction_return);
1362
1363 extern index_type count_0 (const gfc_array_l1 *);
1364
1365 internal_proto(count_0);
1366
1367 /* Internal auxiliary functions for cshift */
1368
1369 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1370 internal_proto(cshift0_i1);
1371
1372 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1373 internal_proto(cshift0_i2);
1374
1375 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1376 internal_proto(cshift0_i4);
1377
1378 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1379 internal_proto(cshift0_i8);
1380
1381 #ifdef HAVE_GFC_INTEGER_16
1382 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1383 internal_proto(cshift0_i16);
1384 #endif
1385
1386 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1387 internal_proto(cshift0_r4);
1388
1389 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1390 internal_proto(cshift0_r8);
1391
1392 #ifdef HAVE_GFC_REAL_10
1393 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1394 internal_proto(cshift0_r10);
1395 #endif
1396
1397 #ifdef HAVE_GFC_REAL_16
1398 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1399 internal_proto(cshift0_r16);
1400 #endif
1401
1402 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1403 internal_proto(cshift0_c4);
1404
1405 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1406 internal_proto(cshift0_c8);
1407
1408 #ifdef HAVE_GFC_COMPLEX_10
1409 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1410 internal_proto(cshift0_c10);
1411 #endif
1412
1413 #ifdef HAVE_GFC_COMPLEX_16
1414 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1415 internal_proto(cshift0_c16);
1416 #endif
1417
1418 #endif  /* LIBGFOR_H  */