libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
   3    2011
   4    Free Software Foundation, Inc.
   5    Contributed by Paul Brook <paul@nowt.org>, and
   6    Andy Vaught <andy@xena.eas.asu.edu>
   7
   8 This file is part of the GNU Fortran runtime library (libgfortran).
   9
  10 Libgfortran is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 3, or (at your option)
  13 any later version.
  14
  15 Libgfortran is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 Under Section 7 of GPL version 3, you are granted additional
  21 permissions described in the GCC Runtime Library Exception, version
  22 3.1, as published by the Free Software Foundation.
  23
  24 You should have received a copy of the GNU General Public License and
  25 a copy of the GCC Runtime Library Exception along with this program;
  26 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  27 <http://www.gnu.org/licenses/>.  */
  28
  29 #ifndef LIBGFOR_H
  30 #define LIBGFOR_H
  31
  32 /* Ensure that ANSI conform stdio is used. This needs to be set before
  33    any system header file is included.  */
  34 #if defined __MINGW32__
  35 #  define _POSIX 1
  36 #  define gfc_printf gnu_printf
  37 #else
  38 #  define gfc_printf __printf__
  39 #endif
  40
  41 /* config.h MUST be first because it can affect system headers.  */
  42 #include "config.h"
  43
  44 #include <stdio.h>
  45 #include <math.h>
  46 #include <stddef.h>
  47 #include <float.h>
  48 #include <stdarg.h>
  49
  50 /* If we're support quad-precision floating-point type, include the
  51    header to our support library.  */
  52 #ifdef HAVE_FLOAT128
  53 #  include "quadmath_weak.h"
  54 #endif
  55
  56 #ifdef __MINGW32__
  57 extern float __strtof (const char *, char **);
  58 #define gfc_strtof __strtof
  59 extern double __strtod (const char *, char **);
  60 #define gfc_strtod __strtod
  61 extern long double __strtold (const char *, char **);
  62 #define gfc_strtold __strtold
  63 #else
  64 #define gfc_strtof strtof
  65 #define gfc_strtod strtod
  66 #define gfc_strtold strtold
  67 #endif
  68
  69 #if HAVE_COMPLEX_H
  70 # include <complex.h>
  71 #else
  72 #define complex __complex__
  73 #endif
  74
  75 #include "../gcc/fortran/libgfortran.h"
  76
  77 #include "c99_protos.h"
  78
  79 #if HAVE_IEEEFP_H
  80 #include <ieeefp.h>
  81 #endif
  82
  83 #include "gstdint.h"
  84
  85 #if HAVE_SYS_TYPES_H
  86 #include <sys/types.h>
  87 #endif
  88
  89 #ifdef __MINGW32__
  90 typedef off64_t gfc_offset;
  91 #else
  92 typedef off_t gfc_offset;
  93 #endif
  94
  95 #ifndef NULL
  96 #define NULL (void *) 0
  97 #endif
  98
  99 #ifndef __GNUC__
 100 #define __attribute__(x)
 101 #define likely(x)       (x)
 102 #define unlikely(x)     (x)
 103 #else
 104 #define likely(x)       __builtin_expect(!!(x), 1)
 105 #define unlikely(x)     __builtin_expect(!!(x), 0)
 106 #endif
 107
 108
 109 /* Make sure we have ptrdiff_t. */
 110 #ifndef HAVE_PTRDIFF_T
 111 typedef intptr_t ptrdiff_t;
 112 #endif
 113
 114 /* On mingw, work around the buggy Windows snprintf() by using the one
 115    mingw provides, __mingw_snprintf().  We also provide a prototype for
 116    __mingw_snprintf(), because the mingw headers currently don't have one.  */
 117 #if HAVE_MINGW_SNPRINTF
 118 extern int __mingw_snprintf (char *, size_t, const char *, ...)
 119      __attribute__ ((format (gnu_printf, 3, 4)));
 120 #undef snprintf
 121 #define snprintf __mingw_snprintf
 122 /* Fallback to sprintf if target does not have snprintf.  */
 123 #elif !defined(HAVE_SNPRINTF)
 124 #undef snprintf
 125 #define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)
 126 #endif
 127
 128
 129 /* For a library, a standard prefix is a requirement in order to partition
 130    the namespace.  IPREFIX is for symbols intended to be internal to the
 131    library.  */
 132 #define PREFIX(x)       _gfortran_ ## x
 133 #define IPREFIX(x)      _gfortrani_ ## x
 134
 135 /* Magic to rename a symbol at the compiler level.  You continue to refer
 136    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
 137 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
 138 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
 139 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
 140
 141 /* There are several classifications of routines:
 142
 143      (1) Symbols used only within the library,
 144      (2) Symbols to be exported from the library,
 145      (3) Symbols to be exported from the library, but
 146          also used inside the library.
 147
 148    By telling the compiler about these different classifications we can
 149    tightly control the interface seen by the user, and get better code
 150    from the compiler at the same time.
 151
 152    One of the following should be used immediately after the declaration
 153    of each symbol:
 154
 155      internal_proto     Marks a symbol used only within the library,
 156                         and adds IPREFIX to the assembly-level symbol
 157                         name.  The later is important for maintaining
 158                         the namespace partition for the static library.
 159
 160      export_proto       Marks a symbol to be exported, and adds PREFIX
 161                         to the assembly-level symbol name.
 162
 163      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 164
 165      iexport_proto      Marks a function to be exported, but with the
 166                         understanding that it can be used inside as well.
 167
 168      iexport_data_proto Similarly, marks a data symbol to be exported.
 169                         Unfortunately, some systems can't play the hidden
 170                         symbol renaming trick on data symbols, thanks to
 171                         the horribleness of COPY relocations.
 172
 173    If iexport_proto or iexport_data_proto is used, you must also use
 174    iexport or iexport_data after the *definition* of the symbol.  */
 175
 176 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 177 # define internal_proto(x) \
 178         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 179 #else
 180 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 181 #endif
 182
 183 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 184 # define export_proto(x)        sym_rename(x, PREFIX(x))
 185 # define export_proto_np(x)     extern char swallow_semicolon
 186 # define iexport_proto(x)       internal_proto(x)
 187 # define iexport(x)             iexport1(x, IPREFIX(x))
 188 # define iexport1(x,y)          iexport2(x,y)
 189 # define iexport2(x,y) \
 190         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 191 #else
 192 # define export_proto(x)        sym_rename(x, PREFIX(x))
 193 # define export_proto_np(x)     extern char swallow_semicolon
 194 # define iexport_proto(x)       export_proto(x)
 195 # define iexport(x)             extern char swallow_semicolon
 196 #endif
 197
 198 /* TODO: detect the case when we *can* hide the symbol.  */
 199 #define iexport_data_proto(x)   export_proto(x)
 200 #define iexport_data(x)         extern char swallow_semicolon
 201
 202 /* The only reliable way to get the offset of a field in a struct
 203    in a system independent way is via this macro.  */
 204 #ifndef offsetof
 205 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 206 #endif
 207
 208 /* The C99 classification macros isfinite, isinf, isnan, isnormal
 209    and signbit are broken or inconsistent on quite a few targets.
 210    So, we use GCC's builtins instead.
 211
 212    Another advantage for GCC's builtins for these type-generic macros
 213    is that it handles floating-point types that the system headers
 214    may not support (like __float128).  */
 215
 216 #undef isnan
 217 #define isnan(x) __builtin_isnan(x)
 218 #undef isfinite
 219 #define isfinite(x) __builtin_isfinite(x)
 220 #undef isinf
 221 #define isinf(x) __builtin_isinf(x)
 222 #undef isnormal
 223 #define isnormal(x) __builtin_isnormal(x)
 224 #undef signbit
 225 #define signbit(x) __builtin_signbit(x)
 226
 227 /* TODO: find the C99 version of these an move into above ifdef.  */
 228 #define REALPART(z) (__real__(z))
 229 #define IMAGPART(z) (__imag__(z))
 230 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 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 _lbound;
 326   index_type _ubound;
 327 }
 328
 329 descriptor_dimension;
 330
 331 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 332 struct {\
 333   type *data;\
 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)->data)
 379 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 380
 381 #define GFC_DIMENSION_LBOUND(dim) ((dim)._lbound)
 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)._lbound)
 385 #define GFC_DIMENSION_SET(dim,lb,ub,str) \
 386   do \
 387     { \
 388       (dim)._lbound = lb;                       \
 389       (dim)._ubound = ub;                       \
 390       (dim)._stride = str;                      \
 391     } while (0)
 392
 393
 394 #define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i]._lbound)
 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]._lbound)
 398 #define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \
 399   (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 400
 401 #define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)
 402 #define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \
 403   (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 404
 405 /* Macros to get both the size and the type with a single masking operation  */
 406
 407 #define GFC_DTYPE_SIZE_MASK \
 408   ((~((index_type) 0) >> GFC_DTYPE_SIZE_SHIFT) << GFC_DTYPE_SIZE_SHIFT)
 409 #define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)
 410
 411 #define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)
 412
 413 #define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 414    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 415 #define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 416    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 417 #define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 418    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 419 #define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 420    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 421 #ifdef HAVE_GFC_INTEGER_16
 422 #define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 423    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 424 #endif
 425
 426 #define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 427    | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))
 428 #define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 429    | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))
 430 #define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 431    | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))
 432 #define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 433    | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))
 434 #ifdef HAVE_GFC_LOGICAL_16
 435 #define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 436    | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))
 437 #endif
 438
 439 #define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 440    | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))
 441 #define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 442    | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))
 443 #ifdef HAVE_GFC_REAL_10
 444 #define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 445    | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))
 446 #endif
 447 #ifdef HAVE_GFC_REAL_16
 448 #define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 449    | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))
 450 #endif
 451
 452 #define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 453    | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))
 454 #define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 455    | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))
 456 #ifdef HAVE_GFC_COMPLEX_10
 457 #define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 458    | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))
 459 #endif
 460 #ifdef HAVE_GFC_COMPLEX_16
 461 #define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 462    | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))
 463 #endif
 464
 465 #define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 466    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 467 #define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 468    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 469 #define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 470    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 471 #define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 472    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 473 #ifdef HAVE_GFC_INTEGER_16
 474 #define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 475    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 476 #endif
 477
 478 /* Macros to determine the alignment of pointers.  */
 479
 480 #define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \
 481                             (__alignof__(GFC_INTEGER_2) - 1))
 482 #define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \
 483                             (__alignof__(GFC_INTEGER_4) - 1))
 484 #define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \
 485                             (__alignof__(GFC_INTEGER_8) - 1))
 486 #ifdef HAVE_GFC_INTEGER_16
 487 #define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \
 488                              (__alignof__(GFC_INTEGER_16) - 1))
 489 #endif
 490
 491 #define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \
 492                              (__alignof__(GFC_COMPLEX_4) - 1))
 493
 494 #define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \
 495                              (__alignof__(GFC_COMPLEX_8) - 1))
 496
 497 /* Runtime library include.  */
 498 #define stringize(x) expand_macro(x)
 499 #define expand_macro(x) # x
 500
 501 /* Runtime options structure.  */
 502
 503 typedef struct
 504 {
 505   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 506   int locus;
 507
 508   int separator_len;
 509   const char *separator;
 510
 511   int all_unbuffered, unbuffered_preconnected, default_recl;
 512   int fpe, backtrace;
 513 }
 514 options_t;
 515
 516 extern options_t options;
 517 internal_proto(options);
 518
 519 extern void backtrace_handler (int);
 520 internal_proto(backtrace_handler);
 521
 522
 523 /* Compile-time options that will influence the library.  */
 524
 525 typedef struct
 526 {
 527   int warn_std;
 528   int allow_std;
 529   int pedantic;
 530   int convert;
 531   int backtrace;
 532   int sign_zero;
 533   size_t record_marker;
 534   int max_subrecord_length;
 535   int bounds_check;
 536   int range_check;
 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 /* This is returned by notify_std and several io functions.  */
 566 typedef enum
 567 { SUCCESS = 1, FAILURE }
 568 try;
 569
 570 /* The filename and line number don't go inside the globals structure.
 571    They are set by the rest of the program and must be linked to.  */
 572
 573 /* Location of the current library call (optional).  */
 574 extern unsigned line;
 575 iexport_data_proto(line);
 576
 577 extern char *filename;
 578 iexport_data_proto(filename);
 579
 580 /* Avoid conflicting prototypes of alloca() in system headers by using
 581    GCC's builtin alloca().  */
 582 #define gfc_alloca(x)  __builtin_alloca(x)
 583
 584
 585 /* Directory for creating temporary files.  Only used when none of the
 586    following environment variables exist: GFORTRAN_TMPDIR, TMP and TEMP.  */
 587 #define DEFAULT_TEMPDIR "/tmp"
 588
 589 /* The default value of record length for preconnected units is defined
 590    here. This value can be overriden by an environment variable.
 591    Default value is 1 Gb.  */
 592 #define DEFAULT_RECL 1073741824
 593
 594
 595 #define CHARACTER2(name) \
 596               gfc_charlen_type name ## _len; \
 597               char * name
 598
 599 typedef struct st_parameter_common
 600 {
 601   GFC_INTEGER_4 flags;
 602   GFC_INTEGER_4 unit;
 603   const char *filename;
 604   GFC_INTEGER_4 line;
 605   CHARACTER2 (iomsg);
 606   GFC_INTEGER_4 *iostat;
 607 }
 608 st_parameter_common;
 609
 610 #undef CHARACTER2
 611
 612 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 613 #define IOPARM_LIBRETURN_OK             (0 << 0)
 614 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 615 #define IOPARM_LIBRETURN_END            (2 << 0)
 616 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 617 #define IOPARM_ERR                      (1 << 2)
 618 #define IOPARM_END                      (1 << 3)
 619 #define IOPARM_EOR                      (1 << 4)
 620 #define IOPARM_HAS_IOSTAT               (1 << 5)
 621 #define IOPARM_HAS_IOMSG                (1 << 6)
 622
 623 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 624
 625 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 626 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 627 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 628 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 629 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 630 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 631 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 632 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 633 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 634 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 635 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 636 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 637 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 638 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 639 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 640 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 641 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 642
 643 /* library start function and end macro.  These can be expanded if needed
 644    in the future.  cmp is st_parameter_common *cmp  */
 645
 646 extern void library_start (st_parameter_common *);
 647 internal_proto(library_start);
 648
 649 #define library_end()
 650
 651 /* main.c */
 652
 653 extern void stupid_function_name_for_static_linking (void);
 654 internal_proto(stupid_function_name_for_static_linking);
 655
 656 extern void set_args (int, char **);
 657 iexport_proto(set_args);
 658
 659 extern void get_args (int *, char ***);
 660 internal_proto(get_args);
 661
 662 extern void store_exe_path (const char *);
 663 export_proto(store_exe_path);
 664
 665 extern char * full_exe_path (void);
 666 internal_proto(full_exe_path);
 667
 668 extern void find_addr2line (void);
 669 internal_proto(find_addr2line);
 670
 671 /* backtrace.c */
 672
 673 extern void show_backtrace (void);
 674 internal_proto(show_backtrace);
 675
 676 /* error.c */
 677
 678 #if defined(HAVE_GFC_REAL_16)
 679 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 680 #elif defined(HAVE_GFC_INTEGER_16)
 681 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 682 #elif defined(HAVE_GFC_REAL_10)
 683 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 684 #else
 685 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 686 #endif
 687
 688 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 689 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 690 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 691 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 692
 693 extern void sys_abort (void) __attribute__ ((noreturn));
 694 internal_proto(sys_abort);
 695
 696 extern ssize_t estr_write (const char *);
 697 internal_proto(estr_write);
 698
 699 extern int st_vprintf (const char *, va_list);
 700 internal_proto(st_vprintf);
 701
 702 extern int st_printf (const char *, ...)
 703   __attribute__((format (gfc_printf, 1, 2)));
 704 internal_proto(st_printf);
 705
 706 extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 707 internal_proto(gfc_xtoa);
 708
 709 extern void os_error (const char *) __attribute__ ((noreturn));
 710 iexport_proto(os_error);
 711
 712 extern void show_locus (st_parameter_common *);
 713 internal_proto(show_locus);
 714
 715 extern void runtime_error (const char *, ...)
 716      __attribute__ ((noreturn, format (gfc_printf, 1, 2)));
 717 iexport_proto(runtime_error);
 718
 719 extern void runtime_error_at (const char *, const char *, ...)
 720      __attribute__ ((noreturn, format (gfc_printf, 2, 3)));
 721 iexport_proto(runtime_error_at);
 722
 723 extern void runtime_warning_at (const char *, const char *, ...)
 724      __attribute__ ((format (gfc_printf, 2, 3)));
 725 iexport_proto(runtime_warning_at);
 726
 727 extern void internal_error (st_parameter_common *, const char *)
 728   __attribute__ ((noreturn));
 729 internal_proto(internal_error);
 730
 731 extern const char *translate_error (int);
 732 internal_proto(translate_error);
 733
 734 extern void generate_error (st_parameter_common *, int, const char *);
 735 iexport_proto(generate_error);
 736
 737 extern void generate_warning (st_parameter_common *, const char *);
 738 internal_proto(generate_warning);
 739
 740 extern try notify_std (st_parameter_common *, int, const char *);
 741 internal_proto(notify_std);
 742
 743 extern notification notification_std(int);
 744 internal_proto(notification_std);
 745
 746 extern char *gf_strerror (int, char *, size_t);
 747 internal_proto(gf_strerror);
 748
 749 /* fpu.c */
 750
 751 extern void set_fpu (void);
 752 internal_proto(set_fpu);
 753
 754 /* memory.c */
 755
 756 extern void *get_mem (size_t) __attribute__ ((malloc));
 757 internal_proto(get_mem);
 758
 759 extern void *internal_malloc_size (size_t) __attribute__ ((malloc));
 760 internal_proto(internal_malloc_size);
 761
 762 /* environ.c */
 763
 764 extern int check_buffered (int);
 765 internal_proto(check_buffered);
 766
 767 extern void init_variables (void);
 768 internal_proto(init_variables);
 769
 770 extern void show_variables (void);
 771 internal_proto(show_variables);
 772
 773 unit_convert get_unformatted_convert (int);
 774 internal_proto(get_unformatted_convert);
 775
 776 /* string.c */
 777
 778 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 779                         const st_option *, const char *);
 780 internal_proto(find_option);
 781
 782 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 783 internal_proto(fstrlen);
 784
 785 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 786 internal_proto(fstrcpy);
 787
 788 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 789 internal_proto(cf_strcpy);
 790
 791 /* io/intrinsics.c */
 792
 793 extern void flush_all_units (void);
 794 internal_proto(flush_all_units);
 795
 796 /* io.c */
 797
 798 extern void init_units (void);
 799 internal_proto(init_units);
 800
 801 extern void close_units (void);
 802 internal_proto(close_units);
 803
 804 extern int unit_to_fd (int);
 805 internal_proto(unit_to_fd);
 806
 807 extern char * filename_from_unit (int);
 808 internal_proto(filename_from_unit);
 809
 810 /* stop.c */
 811
 812 extern void stop_string (const char *, GFC_INTEGER_4)
 813   __attribute__ ((noreturn));
 814 export_proto(stop_string);
 815
 816 /* reshape_packed.c */
 817
 818 extern void reshape_packed (char *, index_type, const char *, index_type,
 819                             const char *, index_type);
 820 internal_proto(reshape_packed);
 821
 822 /* Repacking functions.  These are called internally by internal_pack
 823    and internal_unpack.  */
 824
 825 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 826 internal_proto(internal_pack_1);
 827
 828 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 829 internal_proto(internal_pack_2);
 830
 831 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 832 internal_proto(internal_pack_4);
 833
 834 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 835 internal_proto(internal_pack_8);
 836
 837 #if defined HAVE_GFC_INTEGER_16
 838 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 839 internal_proto(internal_pack_16);
 840 #endif
 841
 842 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 843 internal_proto(internal_pack_r4);
 844
 845 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 846 internal_proto(internal_pack_r8);
 847
 848 #if defined HAVE_GFC_REAL_10
 849 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 850 internal_proto(internal_pack_r10);
 851 #endif
 852
 853 #if defined HAVE_GFC_REAL_16
 854 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 855 internal_proto(internal_pack_r16);
 856 #endif
 857
 858 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 859 internal_proto(internal_pack_c4);
 860
 861 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 862 internal_proto(internal_pack_c8);
 863
 864 #if defined HAVE_GFC_COMPLEX_10
 865 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 866 internal_proto(internal_pack_c10);
 867 #endif
 868
 869 #if defined HAVE_GFC_COMPLEX_16
 870 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 871 internal_proto(internal_pack_c16);
 872 #endif
 873
 874 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 875 internal_proto(internal_unpack_1);
 876
 877 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 878 internal_proto(internal_unpack_2);
 879
 880 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 881 internal_proto(internal_unpack_4);
 882
 883 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 884 internal_proto(internal_unpack_8);
 885
 886 #if defined HAVE_GFC_INTEGER_16
 887 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 888 internal_proto(internal_unpack_16);
 889 #endif
 890
 891 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 892 internal_proto(internal_unpack_r4);
 893
 894 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 895 internal_proto(internal_unpack_r8);
 896
 897 #if defined HAVE_GFC_REAL_10
 898 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 899 internal_proto(internal_unpack_r10);
 900 #endif
 901
 902 #if defined HAVE_GFC_REAL_16
 903 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 904 internal_proto(internal_unpack_r16);
 905 #endif
 906
 907 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 908 internal_proto(internal_unpack_c4);
 909
 910 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 911 internal_proto(internal_unpack_c8);
 912
 913 #if defined HAVE_GFC_COMPLEX_10
 914 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 915 internal_proto(internal_unpack_c10);
 916 #endif
 917
 918 #if defined HAVE_GFC_COMPLEX_16
 919 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 920 internal_proto(internal_unpack_c16);
 921 #endif
 922
 923 /* Internal auxiliary functions for the pack intrinsic.  */
 924
 925 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 926                      const gfc_array_l1 *, const gfc_array_i1 *);
 927 internal_proto(pack_i1);
 928
 929 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 930                      const gfc_array_l1 *, const gfc_array_i2 *);
 931 internal_proto(pack_i2);
 932
 933 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 934                      const gfc_array_l1 *, const gfc_array_i4 *);
 935 internal_proto(pack_i4);
 936
 937 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 938                      const gfc_array_l1 *, const gfc_array_i8 *);
 939 internal_proto(pack_i8);
 940
 941 #ifdef HAVE_GFC_INTEGER_16
 942 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
 943                      const gfc_array_l1 *, const gfc_array_i16 *);
 944 internal_proto(pack_i16);
 945 #endif
 946
 947 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
 948                      const gfc_array_l1 *, const gfc_array_r4 *);
 949 internal_proto(pack_r4);
 950
 951 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
 952                      const gfc_array_l1 *, const gfc_array_r8 *);
 953 internal_proto(pack_r8);
 954
 955 #ifdef HAVE_GFC_REAL_10
 956 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
 957                      const gfc_array_l1 *, const gfc_array_r10 *);
 958 internal_proto(pack_r10);
 959 #endif
 960
 961 #ifdef HAVE_GFC_REAL_16
 962 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
 963                      const gfc_array_l1 *, const gfc_array_r16 *);
 964 internal_proto(pack_r16);
 965 #endif
 966
 967 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
 968                      const gfc_array_l1 *, const gfc_array_c4 *);
 969 internal_proto(pack_c4);
 970
 971 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
 972                      const gfc_array_l1 *, const gfc_array_c8 *);
 973 internal_proto(pack_c8);
 974
 975 #ifdef HAVE_GFC_REAL_10
 976 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
 977                      const gfc_array_l1 *, const gfc_array_c10 *);
 978 internal_proto(pack_c10);
 979 #endif
 980
 981 #ifdef HAVE_GFC_REAL_16
 982 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
 983                      const gfc_array_l1 *, const gfc_array_c16 *);
 984 internal_proto(pack_c16);
 985 #endif
 986
 987 /* Internal auxiliary functions for the unpack intrinsic.  */
 988
 989 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 990                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
 991 internal_proto(unpack0_i1);
 992
 993 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 994                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
 995 internal_proto(unpack0_i2);
 996
 997 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 998                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
 999 internal_proto(unpack0_i4);
1000
1001 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1002                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1003 internal_proto(unpack0_i8);
1004
1005 #ifdef HAVE_GFC_INTEGER_16
1006
1007 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1008                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1009 internal_proto(unpack0_i16);
1010
1011 #endif
1012
1013 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1014                         const gfc_array_l1 *, const GFC_REAL_4 *);
1015 internal_proto(unpack0_r4);
1016
1017 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1018                         const gfc_array_l1 *, const GFC_REAL_8 *);
1019 internal_proto(unpack0_r8);
1020
1021 #ifdef HAVE_GFC_REAL_10
1022
1023 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1024                          const gfc_array_l1 *, const GFC_REAL_10 *);
1025 internal_proto(unpack0_r10);
1026
1027 #endif
1028
1029 #ifdef HAVE_GFC_REAL_16
1030
1031 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1032                          const gfc_array_l1 *, const GFC_REAL_16 *);
1033 internal_proto(unpack0_r16);
1034
1035 #endif
1036
1037 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1038                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1039 internal_proto(unpack0_c4);
1040
1041 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1042                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1043 internal_proto(unpack0_c8);
1044
1045 #ifdef HAVE_GFC_COMPLEX_10
1046
1047 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1048                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1049 internal_proto(unpack0_c10);
1050
1051 #endif
1052
1053 #ifdef HAVE_GFC_COMPLEX_16
1054
1055 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1056                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1057 internal_proto(unpack0_c16);
1058
1059 #endif
1060
1061 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1062                         const gfc_array_l1 *, const gfc_array_i1 *);
1063 internal_proto(unpack1_i1);
1064
1065 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1066                         const gfc_array_l1 *, const gfc_array_i2 *);
1067 internal_proto(unpack1_i2);
1068
1069 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1070                         const gfc_array_l1 *, const gfc_array_i4 *);
1071 internal_proto(unpack1_i4);
1072
1073 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1074                         const gfc_array_l1 *, const gfc_array_i8 *);
1075 internal_proto(unpack1_i8);
1076
1077 #ifdef HAVE_GFC_INTEGER_16
1078 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1079                          const gfc_array_l1 *, const gfc_array_i16 *);
1080 internal_proto(unpack1_i16);
1081 #endif
1082
1083 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1084                         const gfc_array_l1 *, const gfc_array_r4 *);
1085 internal_proto(unpack1_r4);
1086
1087 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1088                         const gfc_array_l1 *, const gfc_array_r8 *);
1089 internal_proto(unpack1_r8);
1090
1091 #ifdef HAVE_GFC_REAL_10
1092 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1093                          const gfc_array_l1 *, const gfc_array_r10 *);
1094 internal_proto(unpack1_r10);
1095 #endif
1096
1097 #ifdef HAVE_GFC_REAL_16
1098 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1099                          const gfc_array_l1 *, const gfc_array_r16 *);
1100 internal_proto(unpack1_r16);
1101 #endif
1102
1103 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1104                         const gfc_array_l1 *, const gfc_array_c4 *);
1105 internal_proto(unpack1_c4);
1106
1107 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1108                         const gfc_array_l1 *, const gfc_array_c8 *);
1109 internal_proto(unpack1_c8);
1110
1111 #ifdef HAVE_GFC_COMPLEX_10
1112 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1113                          const gfc_array_l1 *, const gfc_array_c10 *);
1114 internal_proto(unpack1_c10);
1115 #endif
1116
1117 #ifdef HAVE_GFC_COMPLEX_16
1118 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1119                          const gfc_array_l1 *, const gfc_array_c16 *);
1120 internal_proto(unpack1_c16);
1121 #endif
1122
1123 /* Helper functions for spread.  */
1124
1125 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1126                        const index_type, const index_type);
1127 internal_proto(spread_i1);
1128
1129 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1130                        const index_type, const index_type);
1131 internal_proto(spread_i2);
1132
1133 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1134                        const index_type, const index_type);
1135 internal_proto(spread_i4);
1136
1137 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1138                        const index_type, const index_type);
1139 internal_proto(spread_i8);
1140
1141 #ifdef HAVE_GFC_INTEGER_16
1142 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1143                        const index_type, const index_type);
1144 internal_proto(spread_i16);
1145
1146 #endif
1147
1148 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1149                        const index_type, const index_type);
1150 internal_proto(spread_r4);
1151
1152 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1153                        const index_type, const index_type);
1154 internal_proto(spread_r8);
1155
1156 #ifdef HAVE_GFC_REAL_10
1157 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1158                        const index_type, const index_type);
1159 internal_proto(spread_r10);
1160
1161 #endif
1162
1163 #ifdef HAVE_GFC_REAL_16
1164 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1165                        const index_type, const index_type);
1166 internal_proto(spread_r16);
1167
1168 #endif
1169
1170 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1171                        const index_type, const index_type);
1172 internal_proto(spread_c4);
1173
1174 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1175                        const index_type, const index_type);
1176 internal_proto(spread_c8);
1177
1178 #ifdef HAVE_GFC_COMPLEX_10
1179 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1180                        const index_type, const index_type);
1181 internal_proto(spread_c10);
1182
1183 #endif
1184
1185 #ifdef HAVE_GFC_COMPLEX_16
1186 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1187                        const index_type, const index_type);
1188 internal_proto(spread_c16);
1189
1190 #endif
1191
1192 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1193                               const index_type, const index_type);
1194 internal_proto(spread_scalar_i1);
1195
1196 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1197                               const index_type, const index_type);
1198 internal_proto(spread_scalar_i2);
1199
1200 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1201                               const index_type, const index_type);
1202 internal_proto(spread_scalar_i4);
1203
1204 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1205                               const index_type, const index_type);
1206 internal_proto(spread_scalar_i8);
1207
1208 #ifdef HAVE_GFC_INTEGER_16
1209 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1210                                const index_type, const index_type);
1211 internal_proto(spread_scalar_i16);
1212
1213 #endif
1214
1215 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1216                               const index_type, const index_type);
1217 internal_proto(spread_scalar_r4);
1218
1219 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1220                               const index_type, const index_type);
1221 internal_proto(spread_scalar_r8);
1222
1223 #ifdef HAVE_GFC_REAL_10
1224 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1225                                const index_type, const index_type);
1226 internal_proto(spread_scalar_r10);
1227
1228 #endif
1229
1230 #ifdef HAVE_GFC_REAL_16
1231 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1232                                const index_type, const index_type);
1233 internal_proto(spread_scalar_r16);
1234
1235 #endif
1236
1237 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1238                               const index_type, const index_type);
1239 internal_proto(spread_scalar_c4);
1240
1241 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1242                               const index_type, const index_type);
1243 internal_proto(spread_scalar_c8);
1244
1245 #ifdef HAVE_GFC_COMPLEX_10
1246 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1247                                const index_type, const index_type);
1248 internal_proto(spread_scalar_c10);
1249
1250 #endif
1251
1252 #ifdef HAVE_GFC_COMPLEX_16
1253 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1254                                const index_type, const index_type);
1255 internal_proto(spread_scalar_c16);
1256
1257 #endif
1258
1259 /* string_intrinsics.c */
1260
1261 extern int compare_string (gfc_charlen_type, const char *,
1262                            gfc_charlen_type, const char *);
1263 iexport_proto(compare_string);
1264
1265 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1266                                  gfc_charlen_type, const gfc_char4_t *);
1267 iexport_proto(compare_string_char4);
1268
1269 /* random.c */
1270
1271 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1272                             gfc_array_i4 * get);
1273 iexport_proto(random_seed_i4);
1274 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1275                             gfc_array_i8 * get);
1276 iexport_proto(random_seed_i8);
1277
1278 /* size.c */
1279
1280 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1281
1282 extern index_type size0 (const array_t * array);
1283 iexport_proto(size0);
1284
1285 /* bounds.c */
1286
1287 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1288                                   const char *);
1289 internal_proto(bounds_equal_extents);
1290
1291 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1292                              const char *intrinsic);
1293 internal_proto(bounds_reduced_extents);
1294
1295 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1296 internal_proto(bounds_iforeach_return);
1297
1298 extern void bounds_ifunction_return (array_t *, const index_type *,
1299                                      const char *, const char *);
1300 internal_proto(bounds_ifunction_return);
1301
1302 extern index_type count_0 (const gfc_array_l1 *);
1303
1304 internal_proto(count_0);
1305
1306 /* Internal auxiliary functions for cshift */
1307
1308 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1309 internal_proto(cshift0_i1);
1310
1311 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1312 internal_proto(cshift0_i2);
1313
1314 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1315 internal_proto(cshift0_i4);
1316
1317 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1318 internal_proto(cshift0_i8);
1319
1320 #ifdef HAVE_GFC_INTEGER_16
1321 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1322 internal_proto(cshift0_i16);
1323 #endif
1324
1325 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1326 internal_proto(cshift0_r4);
1327
1328 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1329 internal_proto(cshift0_r8);
1330
1331 #ifdef HAVE_GFC_REAL_10
1332 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1333 internal_proto(cshift0_r10);
1334 #endif
1335
1336 #ifdef HAVE_GFC_REAL_16
1337 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1338 internal_proto(cshift0_r16);
1339 #endif
1340
1341 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1342 internal_proto(cshift0_c4);
1343
1344 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1345 internal_proto(cshift0_c8);
1346
1347 #ifdef HAVE_GFC_COMPLEX_10
1348 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1349 internal_proto(cshift0_c10);
1350 #endif
1351
1352 #ifdef HAVE_GFC_COMPLEX_16
1353 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1354 internal_proto(cshift0_c16);
1355 #endif
1356
1357 #endif  /* LIBGFOR_H  */