libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002-2016 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 (-((index_type) 1 << GFC_DTYPE_SIZE_SHIFT))
 408 #define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)
 409
 410 #define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)
 411
 412 #define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 413    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 414 #define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 415    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 416 #define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 417    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 418 #define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 419    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 420 #ifdef HAVE_GFC_INTEGER_16
 421 #define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 422    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 423 #endif
 424
 425 #define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 426    | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))
 427 #define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 428    | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))
 429 #define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 430    | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))
 431 #define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 432    | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))
 433 #ifdef HAVE_GFC_LOGICAL_16
 434 #define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 435    | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))
 436 #endif
 437
 438 #define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 439    | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))
 440 #define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 441    | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))
 442 #ifdef HAVE_GFC_REAL_10
 443 #define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 444    | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))
 445 #endif
 446 #ifdef HAVE_GFC_REAL_16
 447 #define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 448    | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))
 449 #endif
 450
 451 #define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 452    | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))
 453 #define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 454    | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))
 455 #ifdef HAVE_GFC_COMPLEX_10
 456 #define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 457    | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))
 458 #endif
 459 #ifdef HAVE_GFC_COMPLEX_16
 460 #define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 461    | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))
 462 #endif
 463
 464 #define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 465    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 466 #define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 467    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 468 #define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 469    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 470 #define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 471    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 472 #ifdef HAVE_GFC_INTEGER_16
 473 #define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 474    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 475 #endif
 476
 477 /* Macros to determine the alignment of pointers.  */
 478
 479 #define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \
 480                             (__alignof__(GFC_INTEGER_2) - 1))
 481 #define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \
 482                             (__alignof__(GFC_INTEGER_4) - 1))
 483 #define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \
 484                             (__alignof__(GFC_INTEGER_8) - 1))
 485 #ifdef HAVE_GFC_INTEGER_16
 486 #define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \
 487                              (__alignof__(GFC_INTEGER_16) - 1))
 488 #endif
 489
 490 #define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \
 491                              (__alignof__(GFC_COMPLEX_4) - 1))
 492
 493 #define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \
 494                              (__alignof__(GFC_COMPLEX_8) - 1))
 495
 496 /* Runtime library include.  */
 497 #define stringize(x) expand_macro(x)
 498 #define expand_macro(x) # x
 499
 500 /* Runtime options structure.  */
 501
 502 typedef struct
 503 {
 504   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 505   int locus;
 506
 507   int separator_len;
 508   const char *separator;
 509
 510   int all_unbuffered, unbuffered_preconnected, default_recl;
 511   int fpe, backtrace;
 512 }
 513 options_t;
 514
 515 extern options_t options;
 516 internal_proto(options);
 517
 518 extern void backtrace_handler (int);
 519 internal_proto(backtrace_handler);
 520
 521
 522 /* Compile-time options that will influence the library.  */
 523
 524 typedef struct
 525 {
 526   int warn_std;
 527   int allow_std;
 528   int pedantic;
 529   int convert;
 530   int backtrace;
 531   int sign_zero;
 532   size_t record_marker;
 533   int max_subrecord_length;
 534   int bounds_check;
 535   int fpe_summary;
 536 }
 537 compile_options_t;
 538
 539 extern compile_options_t compile_options;
 540 internal_proto(compile_options);
 541
 542 extern void init_compile_options (void);
 543 internal_proto(init_compile_options);
 544
 545 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 546
 547 /* Structure for statement options.  */
 548
 549 typedef struct
 550 {
 551   const char *name;
 552   int value;
 553 }
 554 st_option;
 555
 556
 557 /* This is returned by notification_std to know if, given the flags
 558    that were given (-std=, -pedantic) we should issue an error, a warning
 559    or nothing.  */
 560 typedef enum
 561 { NOTIFICATION_SILENT, NOTIFICATION_WARNING, NOTIFICATION_ERROR }
 562 notification;
 563
 564
 565 /* The filename and line number don't go inside the globals structure.
 566    They are set by the rest of the program and must be linked to.  */
 567
 568 /* Location of the current library call (optional).  */
 569 extern unsigned line;
 570 iexport_data_proto(line);
 571
 572 extern char *filename;
 573 iexport_data_proto(filename);
 574
 575
 576 /* The default value of record length for preconnected units is defined
 577    here. This value can be overriden by an environment variable.
 578    Default value is 1 Gb.  */
 579 #define DEFAULT_RECL 1073741824
 580
 581
 582 #define CHARACTER2(name) \
 583               gfc_charlen_type name ## _len; \
 584               char * name
 585
 586 typedef struct st_parameter_common
 587 {
 588   GFC_INTEGER_4 flags;
 589   GFC_INTEGER_4 unit;
 590   const char *filename;
 591   GFC_INTEGER_4 line;
 592   CHARACTER2 (iomsg);
 593   GFC_INTEGER_4 *iostat;
 594 }
 595 st_parameter_common;
 596
 597 #undef CHARACTER2
 598
 599 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 600 #define IOPARM_LIBRETURN_OK             (0 << 0)
 601 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 602 #define IOPARM_LIBRETURN_END            (2 << 0)
 603 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 604 #define IOPARM_ERR                      (1 << 2)
 605 #define IOPARM_END                      (1 << 3)
 606 #define IOPARM_EOR                      (1 << 4)
 607 #define IOPARM_HAS_IOSTAT               (1 << 5)
 608 #define IOPARM_HAS_IOMSG                (1 << 6)
 609
 610 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 611
 612 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 613 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 614 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 615 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 616 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 617 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 618 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 619 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 620 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 621 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 622 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 623 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 624 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 625 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 626 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 627 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 628 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 629
 630 /* library start function and end macro.  These can be expanded if needed
 631    in the future.  cmp is st_parameter_common *cmp  */
 632
 633 extern void library_start (st_parameter_common *);
 634 internal_proto(library_start);
 635
 636 #define library_end()
 637
 638 /* main.c */
 639
 640 extern void stupid_function_name_for_static_linking (void);
 641 internal_proto(stupid_function_name_for_static_linking);
 642
 643 extern void set_args (int, char **);
 644 iexport_proto(set_args);
 645
 646 extern void get_args (int *, char ***);
 647 internal_proto(get_args);
 648
 649 extern void store_exe_path (const char *);
 650 export_proto(store_exe_path);
 651
 652 /* backtrace.c */
 653
 654 extern void show_backtrace (bool);
 655 internal_proto(show_backtrace);
 656
 657
 658 /* error.c */
 659
 660 #if defined(HAVE_GFC_REAL_16)
 661 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 662 #elif defined(HAVE_GFC_INTEGER_16)
 663 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 664 #elif defined(HAVE_GFC_REAL_10)
 665 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 666 #else
 667 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 668 #endif
 669
 670 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 671 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 672 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 673 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 674
 675 extern _Noreturn void sys_abort (void);
 676 internal_proto(sys_abort);
 677
 678 extern _Noreturn void exit_error (int);
 679 internal_proto(exit_error);
 680
 681 extern ssize_t estr_write (const char *);
 682 internal_proto(estr_write);
 683
 684 extern int st_vprintf (const char *, va_list);
 685 internal_proto(st_vprintf);
 686
 687 extern int st_printf (const char *, ...)
 688   __attribute__((format (gfc_printf, 1, 2)));
 689 internal_proto(st_printf);
 690
 691 extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 692 internal_proto(gfc_xtoa);
 693
 694 extern _Noreturn void os_error (const char *);
 695 iexport_proto(os_error);
 696
 697 extern void show_locus (st_parameter_common *);
 698 internal_proto(show_locus);
 699
 700 extern _Noreturn void runtime_error (const char *, ...)
 701      __attribute__ ((format (gfc_printf, 1, 2)));
 702 iexport_proto(runtime_error);
 703
 704 extern _Noreturn void runtime_error_at (const char *, const char *, ...)
 705      __attribute__ ((format (gfc_printf, 2, 3)));
 706 iexport_proto(runtime_error_at);
 707
 708 extern void runtime_warning_at (const char *, const char *, ...)
 709      __attribute__ ((format (gfc_printf, 2, 3)));
 710 iexport_proto(runtime_warning_at);
 711
 712 extern _Noreturn void internal_error (st_parameter_common *, const char *);
 713 internal_proto(internal_error);
 714
 715 extern const char *translate_error (int);
 716 internal_proto(translate_error);
 717
 718 extern void generate_error (st_parameter_common *, int, const char *);
 719 iexport_proto(generate_error);
 720
 721 extern void generate_warning (st_parameter_common *, const char *);
 722 internal_proto(generate_warning);
 723
 724 extern bool notify_std (st_parameter_common *, int, const char *);
 725 internal_proto(notify_std);
 726
 727 extern notification notification_std(int);
 728 internal_proto(notification_std);
 729
 730 extern char *gf_strerror (int, char *, size_t);
 731 internal_proto(gf_strerror);
 732
 733 /* fpu.c */
 734
 735 extern void set_fpu (void);
 736 internal_proto(set_fpu);
 737
 738 extern int get_fpu_trap_exceptions (void);
 739 internal_proto(get_fpu_trap_exceptions);
 740
 741 extern void set_fpu_trap_exceptions (int, int);
 742 internal_proto(set_fpu_trap_exceptions);
 743
 744 extern int support_fpu_trap (int);
 745 internal_proto(support_fpu_trap);
 746
 747 extern int get_fpu_except_flags (void);
 748 internal_proto(get_fpu_except_flags);
 749
 750 extern void set_fpu_except_flags (int, int);
 751 internal_proto(set_fpu_except_flags);
 752
 753 extern int support_fpu_flag (int);
 754 internal_proto(support_fpu_flag);
 755
 756 extern void set_fpu_rounding_mode (int);
 757 internal_proto(set_fpu_rounding_mode);
 758
 759 extern int get_fpu_rounding_mode (void);
 760 internal_proto(get_fpu_rounding_mode);
 761
 762 extern int support_fpu_rounding_mode (int);
 763 internal_proto(support_fpu_rounding_mode);
 764
 765 extern void get_fpu_state (void *);
 766 internal_proto(get_fpu_state);
 767
 768 extern void set_fpu_state (void *);
 769 internal_proto(set_fpu_state);
 770
 771 extern int get_fpu_underflow_mode (void);
 772 internal_proto(get_fpu_underflow_mode);
 773
 774 extern void set_fpu_underflow_mode (int);
 775 internal_proto(set_fpu_underflow_mode);
 776
 777 extern int support_fpu_underflow_control (int);
 778 internal_proto(support_fpu_underflow_control);
 779
 780 /* memory.c */
 781
 782 extern void *xmalloc (size_t) __attribute__ ((malloc));
 783 internal_proto(xmalloc);
 784
 785 extern void *xmallocarray (size_t, size_t) __attribute__ ((malloc));
 786 internal_proto(xmallocarray);
 787
 788 extern void *xcalloc (size_t, size_t) __attribute__ ((malloc));
 789 internal_proto(xcalloc);
 790
 791 extern void *xrealloc (void *, size_t);
 792 internal_proto(xrealloc);
 793
 794 /* environ.c */
 795
 796 extern void init_variables (void);
 797 internal_proto(init_variables);
 798
 799 unit_convert get_unformatted_convert (int);
 800 internal_proto(get_unformatted_convert);
 801
 802 /* Secure getenv() which returns NULL if running as SUID/SGID.  */
 803 #ifndef HAVE_SECURE_GETENV
 804 #ifdef HAVE___SECURE_GETENV
 805 #define secure_getenv __secure_getenv
 806 #elif defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 807   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 808 #define FALLBACK_SECURE_GETENV
 809 extern char *secure_getenv (const char *);
 810 internal_proto(secure_getenv);
 811 #else
 812 #define secure_getenv getenv
 813 #endif
 814 #endif
 815
 816 /* string.c */
 817
 818 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 819                         const st_option *, const char *);
 820 internal_proto(find_option);
 821
 822 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 823 internal_proto(fstrlen);
 824
 825 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 826 internal_proto(fstrcpy);
 827
 828 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 829 internal_proto(cf_strcpy);
 830
 831 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 832 export_proto(string_len_trim);
 833
 834 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 835                                                const gfc_char4_t *);
 836 export_proto(string_len_trim_char4);
 837
 838 extern char *fc_strdup(const char *, gfc_charlen_type);
 839 internal_proto(fc_strdup);
 840
 841 extern char *fc_strdup_notrim(const char *, gfc_charlen_type);
 842 internal_proto(fc_strdup_notrim);
 843
 844 extern const char *gfc_itoa(GFC_INTEGER_LARGEST, char *, size_t);
 845 internal_proto(gfc_itoa);
 846
 847 /* io/intrinsics.c */
 848
 849 extern void flush_all_units (void);
 850 internal_proto(flush_all_units);
 851
 852 /* io.c */
 853
 854 extern void init_units (void);
 855 internal_proto(init_units);
 856
 857 extern void close_units (void);
 858 internal_proto(close_units);
 859
 860 extern int unit_to_fd (int);
 861 internal_proto(unit_to_fd);
 862
 863 extern char * filename_from_unit (int);
 864 internal_proto(filename_from_unit);
 865
 866 /* stop.c */
 867
 868 extern _Noreturn void stop_string (const char *, GFC_INTEGER_4);
 869 export_proto(stop_string);
 870
 871 /* reshape_packed.c */
 872
 873 extern void reshape_packed (char *, index_type, const char *, index_type,
 874                             const char *, index_type);
 875 internal_proto(reshape_packed);
 876
 877 /* Repacking functions.  These are called internally by internal_pack
 878    and internal_unpack.  */
 879
 880 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 881 internal_proto(internal_pack_1);
 882
 883 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 884 internal_proto(internal_pack_2);
 885
 886 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 887 internal_proto(internal_pack_4);
 888
 889 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 890 internal_proto(internal_pack_8);
 891
 892 #if defined HAVE_GFC_INTEGER_16
 893 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 894 internal_proto(internal_pack_16);
 895 #endif
 896
 897 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 898 internal_proto(internal_pack_r4);
 899
 900 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 901 internal_proto(internal_pack_r8);
 902
 903 #if defined HAVE_GFC_REAL_10
 904 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 905 internal_proto(internal_pack_r10);
 906 #endif
 907
 908 #if defined HAVE_GFC_REAL_16
 909 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 910 internal_proto(internal_pack_r16);
 911 #endif
 912
 913 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 914 internal_proto(internal_pack_c4);
 915
 916 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 917 internal_proto(internal_pack_c8);
 918
 919 #if defined HAVE_GFC_COMPLEX_10
 920 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 921 internal_proto(internal_pack_c10);
 922 #endif
 923
 924 #if defined HAVE_GFC_COMPLEX_16
 925 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 926 internal_proto(internal_pack_c16);
 927 #endif
 928
 929 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 930 internal_proto(internal_unpack_1);
 931
 932 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 933 internal_proto(internal_unpack_2);
 934
 935 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 936 internal_proto(internal_unpack_4);
 937
 938 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 939 internal_proto(internal_unpack_8);
 940
 941 #if defined HAVE_GFC_INTEGER_16
 942 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 943 internal_proto(internal_unpack_16);
 944 #endif
 945
 946 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 947 internal_proto(internal_unpack_r4);
 948
 949 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 950 internal_proto(internal_unpack_r8);
 951
 952 #if defined HAVE_GFC_REAL_10
 953 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 954 internal_proto(internal_unpack_r10);
 955 #endif
 956
 957 #if defined HAVE_GFC_REAL_16
 958 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 959 internal_proto(internal_unpack_r16);
 960 #endif
 961
 962 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 963 internal_proto(internal_unpack_c4);
 964
 965 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 966 internal_proto(internal_unpack_c8);
 967
 968 #if defined HAVE_GFC_COMPLEX_10
 969 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 970 internal_proto(internal_unpack_c10);
 971 #endif
 972
 973 #if defined HAVE_GFC_COMPLEX_16
 974 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 975 internal_proto(internal_unpack_c16);
 976 #endif
 977
 978 /* Internal auxiliary functions for the pack intrinsic.  */
 979
 980 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 981                      const gfc_array_l1 *, const gfc_array_i1 *);
 982 internal_proto(pack_i1);
 983
 984 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 985                      const gfc_array_l1 *, const gfc_array_i2 *);
 986 internal_proto(pack_i2);
 987
 988 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 989                      const gfc_array_l1 *, const gfc_array_i4 *);
 990 internal_proto(pack_i4);
 991
 992 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 993                      const gfc_array_l1 *, const gfc_array_i8 *);
 994 internal_proto(pack_i8);
 995
 996 #ifdef HAVE_GFC_INTEGER_16
 997 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
 998                      const gfc_array_l1 *, const gfc_array_i16 *);
 999 internal_proto(pack_i16);
1000 #endif
1001
1002 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1003                      const gfc_array_l1 *, const gfc_array_r4 *);
1004 internal_proto(pack_r4);
1005
1006 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1007                      const gfc_array_l1 *, const gfc_array_r8 *);
1008 internal_proto(pack_r8);
1009
1010 #ifdef HAVE_GFC_REAL_10
1011 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1012                      const gfc_array_l1 *, const gfc_array_r10 *);
1013 internal_proto(pack_r10);
1014 #endif
1015
1016 #ifdef HAVE_GFC_REAL_16
1017 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1018                      const gfc_array_l1 *, const gfc_array_r16 *);
1019 internal_proto(pack_r16);
1020 #endif
1021
1022 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1023                      const gfc_array_l1 *, const gfc_array_c4 *);
1024 internal_proto(pack_c4);
1025
1026 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1027                      const gfc_array_l1 *, const gfc_array_c8 *);
1028 internal_proto(pack_c8);
1029
1030 #ifdef HAVE_GFC_REAL_10
1031 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1032                      const gfc_array_l1 *, const gfc_array_c10 *);
1033 internal_proto(pack_c10);
1034 #endif
1035
1036 #ifdef HAVE_GFC_REAL_16
1037 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1038                      const gfc_array_l1 *, const gfc_array_c16 *);
1039 internal_proto(pack_c16);
1040 #endif
1041
1042 /* Internal auxiliary functions for the unpack intrinsic.  */
1043
1044 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1045                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1046 internal_proto(unpack0_i1);
1047
1048 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1049                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1050 internal_proto(unpack0_i2);
1051
1052 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1053                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1054 internal_proto(unpack0_i4);
1055
1056 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1057                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1058 internal_proto(unpack0_i8);
1059
1060 #ifdef HAVE_GFC_INTEGER_16
1061
1062 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1063                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1064 internal_proto(unpack0_i16);
1065
1066 #endif
1067
1068 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1069                         const gfc_array_l1 *, const GFC_REAL_4 *);
1070 internal_proto(unpack0_r4);
1071
1072 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1073                         const gfc_array_l1 *, const GFC_REAL_8 *);
1074 internal_proto(unpack0_r8);
1075
1076 #ifdef HAVE_GFC_REAL_10
1077
1078 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1079                          const gfc_array_l1 *, const GFC_REAL_10 *);
1080 internal_proto(unpack0_r10);
1081
1082 #endif
1083
1084 #ifdef HAVE_GFC_REAL_16
1085
1086 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1087                          const gfc_array_l1 *, const GFC_REAL_16 *);
1088 internal_proto(unpack0_r16);
1089
1090 #endif
1091
1092 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1093                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1094 internal_proto(unpack0_c4);
1095
1096 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1097                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1098 internal_proto(unpack0_c8);
1099
1100 #ifdef HAVE_GFC_COMPLEX_10
1101
1102 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1103                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1104 internal_proto(unpack0_c10);
1105
1106 #endif
1107
1108 #ifdef HAVE_GFC_COMPLEX_16
1109
1110 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1111                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1112 internal_proto(unpack0_c16);
1113
1114 #endif
1115
1116 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1117                         const gfc_array_l1 *, const gfc_array_i1 *);
1118 internal_proto(unpack1_i1);
1119
1120 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1121                         const gfc_array_l1 *, const gfc_array_i2 *);
1122 internal_proto(unpack1_i2);
1123
1124 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1125                         const gfc_array_l1 *, const gfc_array_i4 *);
1126 internal_proto(unpack1_i4);
1127
1128 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1129                         const gfc_array_l1 *, const gfc_array_i8 *);
1130 internal_proto(unpack1_i8);
1131
1132 #ifdef HAVE_GFC_INTEGER_16
1133 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1134                          const gfc_array_l1 *, const gfc_array_i16 *);
1135 internal_proto(unpack1_i16);
1136 #endif
1137
1138 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1139                         const gfc_array_l1 *, const gfc_array_r4 *);
1140 internal_proto(unpack1_r4);
1141
1142 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1143                         const gfc_array_l1 *, const gfc_array_r8 *);
1144 internal_proto(unpack1_r8);
1145
1146 #ifdef HAVE_GFC_REAL_10
1147 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1148                          const gfc_array_l1 *, const gfc_array_r10 *);
1149 internal_proto(unpack1_r10);
1150 #endif
1151
1152 #ifdef HAVE_GFC_REAL_16
1153 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1154                          const gfc_array_l1 *, const gfc_array_r16 *);
1155 internal_proto(unpack1_r16);
1156 #endif
1157
1158 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1159                         const gfc_array_l1 *, const gfc_array_c4 *);
1160 internal_proto(unpack1_c4);
1161
1162 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1163                         const gfc_array_l1 *, const gfc_array_c8 *);
1164 internal_proto(unpack1_c8);
1165
1166 #ifdef HAVE_GFC_COMPLEX_10
1167 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1168                          const gfc_array_l1 *, const gfc_array_c10 *);
1169 internal_proto(unpack1_c10);
1170 #endif
1171
1172 #ifdef HAVE_GFC_COMPLEX_16
1173 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1174                          const gfc_array_l1 *, const gfc_array_c16 *);
1175 internal_proto(unpack1_c16);
1176 #endif
1177
1178 /* Helper functions for spread.  */
1179
1180 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1181                        const index_type, const index_type);
1182 internal_proto(spread_i1);
1183
1184 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1185                        const index_type, const index_type);
1186 internal_proto(spread_i2);
1187
1188 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1189                        const index_type, const index_type);
1190 internal_proto(spread_i4);
1191
1192 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1193                        const index_type, const index_type);
1194 internal_proto(spread_i8);
1195
1196 #ifdef HAVE_GFC_INTEGER_16
1197 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1198                        const index_type, const index_type);
1199 internal_proto(spread_i16);
1200
1201 #endif
1202
1203 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1204                        const index_type, const index_type);
1205 internal_proto(spread_r4);
1206
1207 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1208                        const index_type, const index_type);
1209 internal_proto(spread_r8);
1210
1211 #ifdef HAVE_GFC_REAL_10
1212 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1213                        const index_type, const index_type);
1214 internal_proto(spread_r10);
1215
1216 #endif
1217
1218 #ifdef HAVE_GFC_REAL_16
1219 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1220                        const index_type, const index_type);
1221 internal_proto(spread_r16);
1222
1223 #endif
1224
1225 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1226                        const index_type, const index_type);
1227 internal_proto(spread_c4);
1228
1229 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1230                        const index_type, const index_type);
1231 internal_proto(spread_c8);
1232
1233 #ifdef HAVE_GFC_COMPLEX_10
1234 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1235                        const index_type, const index_type);
1236 internal_proto(spread_c10);
1237
1238 #endif
1239
1240 #ifdef HAVE_GFC_COMPLEX_16
1241 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1242                        const index_type, const index_type);
1243 internal_proto(spread_c16);
1244
1245 #endif
1246
1247 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1248                               const index_type, const index_type);
1249 internal_proto(spread_scalar_i1);
1250
1251 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1252                               const index_type, const index_type);
1253 internal_proto(spread_scalar_i2);
1254
1255 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1256                               const index_type, const index_type);
1257 internal_proto(spread_scalar_i4);
1258
1259 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1260                               const index_type, const index_type);
1261 internal_proto(spread_scalar_i8);
1262
1263 #ifdef HAVE_GFC_INTEGER_16
1264 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1265                                const index_type, const index_type);
1266 internal_proto(spread_scalar_i16);
1267
1268 #endif
1269
1270 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1271                               const index_type, const index_type);
1272 internal_proto(spread_scalar_r4);
1273
1274 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1275                               const index_type, const index_type);
1276 internal_proto(spread_scalar_r8);
1277
1278 #ifdef HAVE_GFC_REAL_10
1279 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1280                                const index_type, const index_type);
1281 internal_proto(spread_scalar_r10);
1282
1283 #endif
1284
1285 #ifdef HAVE_GFC_REAL_16
1286 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1287                                const index_type, const index_type);
1288 internal_proto(spread_scalar_r16);
1289
1290 #endif
1291
1292 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1293                               const index_type, const index_type);
1294 internal_proto(spread_scalar_c4);
1295
1296 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1297                               const index_type, const index_type);
1298 internal_proto(spread_scalar_c8);
1299
1300 #ifdef HAVE_GFC_COMPLEX_10
1301 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1302                                const index_type, const index_type);
1303 internal_proto(spread_scalar_c10);
1304
1305 #endif
1306
1307 #ifdef HAVE_GFC_COMPLEX_16
1308 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1309                                const index_type, const index_type);
1310 internal_proto(spread_scalar_c16);
1311
1312 #endif
1313
1314 /* string_intrinsics.c */
1315
1316 extern int compare_string (gfc_charlen_type, const char *,
1317                            gfc_charlen_type, const char *);
1318 iexport_proto(compare_string);
1319
1320 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1321                                  gfc_charlen_type, const gfc_char4_t *);
1322 iexport_proto(compare_string_char4);
1323
1324 extern int memcmp_char4 (const void *, const void *, size_t);
1325 internal_proto(memcmp_char4);
1326
1327
1328 /* random.c */
1329
1330 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1331                             gfc_array_i4 * get);
1332 iexport_proto(random_seed_i4);
1333 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1334                             gfc_array_i8 * get);
1335 iexport_proto(random_seed_i8);
1336
1337 /* size.c */
1338
1339 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1340
1341 extern index_type size0 (const array_t * array);
1342 iexport_proto(size0);
1343
1344 /* bounds.c */
1345
1346 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1347                                   const char *);
1348 internal_proto(bounds_equal_extents);
1349
1350 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1351                              const char *intrinsic);
1352 internal_proto(bounds_reduced_extents);
1353
1354 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1355 internal_proto(bounds_iforeach_return);
1356
1357 extern void bounds_ifunction_return (array_t *, const index_type *,
1358                                      const char *, const char *);
1359 internal_proto(bounds_ifunction_return);
1360
1361 extern index_type count_0 (const gfc_array_l1 *);
1362
1363 internal_proto(count_0);
1364
1365 /* Internal auxiliary functions for cshift */
1366
1367 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1368 internal_proto(cshift0_i1);
1369
1370 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1371 internal_proto(cshift0_i2);
1372
1373 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1374 internal_proto(cshift0_i4);
1375
1376 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1377 internal_proto(cshift0_i8);
1378
1379 #ifdef HAVE_GFC_INTEGER_16
1380 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1381 internal_proto(cshift0_i16);
1382 #endif
1383
1384 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1385 internal_proto(cshift0_r4);
1386
1387 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1388 internal_proto(cshift0_r8);
1389
1390 #ifdef HAVE_GFC_REAL_10
1391 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1392 internal_proto(cshift0_r10);
1393 #endif
1394
1395 #ifdef HAVE_GFC_REAL_16
1396 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1397 internal_proto(cshift0_r16);
1398 #endif
1399
1400 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1401 internal_proto(cshift0_c4);
1402
1403 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1404 internal_proto(cshift0_c8);
1405
1406 #ifdef HAVE_GFC_COMPLEX_10
1407 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1408 internal_proto(cshift0_c10);
1409 #endif
1410
1411 #ifdef HAVE_GFC_COMPLEX_16
1412 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1413 internal_proto(cshift0_c16);
1414 #endif
1415
1416 #endif  /* LIBGFOR_H  */