libgfortran/libgfortran.h

   1 /* Common declarations for all of libgfortran.
   2    Copyright (C) 2002-2013 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 #ifndef __GNUC__
 101 #define __attribute__(x)
 102 #define likely(x)       (x)
 103 #define unlikely(x)     (x)
 104 #else
 105 #define likely(x)       __builtin_expect(!!(x), 1)
 106 #define unlikely(x)     __builtin_expect(!!(x), 0)
 107 #endif
 108
 109
 110 /* Make sure we have ptrdiff_t. */
 111 #ifndef HAVE_PTRDIFF_T
 112 typedef intptr_t ptrdiff_t;
 113 #endif
 114
 115 /* On mingw, work around the buggy Windows snprintf() by using the one
 116    mingw provides, __mingw_snprintf().  We also provide a prototype for
 117    __mingw_snprintf(), because the mingw headers currently don't have one.  */
 118 #if HAVE_MINGW_SNPRINTF
 119 extern int __mingw_snprintf (char *, size_t, const char *, ...)
 120      __attribute__ ((format (gnu_printf, 3, 4)));
 121 #undef snprintf
 122 #define snprintf __mingw_snprintf
 123 /* Fallback to sprintf if target does not have snprintf.  */
 124 #elif !defined(HAVE_SNPRINTF)
 125 #undef snprintf
 126 #define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)
 127 #endif
 128
 129
 130 /* For a library, a standard prefix is a requirement in order to partition
 131    the namespace.  IPREFIX is for symbols intended to be internal to the
 132    library.  */
 133 #define PREFIX(x)       _gfortran_ ## x
 134 #define IPREFIX(x)      _gfortrani_ ## x
 135
 136 /* Magic to rename a symbol at the compiler level.  You continue to refer
 137    to the symbol as OLD in the source, but it'll be named NEW in the asm.  */
 138 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
 139 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
 140 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
 141
 142 /* There are several classifications of routines:
 143
 144      (1) Symbols used only within the library,
 145      (2) Symbols to be exported from the library,
 146      (3) Symbols to be exported from the library, but
 147          also used inside the library.
 148
 149    By telling the compiler about these different classifications we can
 150    tightly control the interface seen by the user, and get better code
 151    from the compiler at the same time.
 152
 153    One of the following should be used immediately after the declaration
 154    of each symbol:
 155
 156      internal_proto     Marks a symbol used only within the library,
 157                         and adds IPREFIX to the assembly-level symbol
 158                         name.  The later is important for maintaining
 159                         the namespace partition for the static library.
 160
 161      export_proto       Marks a symbol to be exported, and adds PREFIX
 162                         to the assembly-level symbol name.
 163
 164      export_proto_np    Marks a symbol to be exported without adding PREFIX.
 165
 166      iexport_proto      Marks a function to be exported, but with the
 167                         understanding that it can be used inside as well.
 168
 169      iexport_data_proto Similarly, marks a data symbol to be exported.
 170                         Unfortunately, some systems can't play the hidden
 171                         symbol renaming trick on data symbols, thanks to
 172                         the horribleness of COPY relocations.
 173
 174    If iexport_proto or iexport_data_proto is used, you must also use
 175    iexport or iexport_data after the *definition* of the symbol.  */
 176
 177 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
 178 # define internal_proto(x) \
 179         sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
 180 #else
 181 # define internal_proto(x)      sym_rename(x, IPREFIX(x))
 182 #endif
 183
 184 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
 185 # define export_proto(x)        sym_rename(x, PREFIX(x))
 186 # define export_proto_np(x)     extern char swallow_semicolon
 187 # define iexport_proto(x)       internal_proto(x)
 188 # define iexport(x)             iexport1(x, IPREFIX(x))
 189 # define iexport1(x,y)          iexport2(x,y)
 190 # define iexport2(x,y) \
 191         extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))
 192 #else
 193 # define export_proto(x)        sym_rename(x, PREFIX(x))
 194 # define export_proto_np(x)     extern char swallow_semicolon
 195 # define iexport_proto(x)       export_proto(x)
 196 # define iexport(x)             extern char swallow_semicolon
 197 #endif
 198
 199 /* TODO: detect the case when we *can* hide the symbol.  */
 200 #define iexport_data_proto(x)   export_proto(x)
 201 #define iexport_data(x)         extern char swallow_semicolon
 202
 203 /* The only reliable way to get the offset of a field in a struct
 204    in a system independent way is via this macro.  */
 205 #ifndef offsetof
 206 #define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)
 207 #endif
 208
 209 /* The C99 classification macros isfinite, isinf, isnan, isnormal
 210    and signbit are broken or inconsistent on quite a few targets.
 211    So, we use GCC's builtins instead.
 212
 213    Another advantage for GCC's builtins for these type-generic macros
 214    is that it handles floating-point types that the system headers
 215    may not support (like __float128).  */
 216
 217 #undef isnan
 218 #define isnan(x) __builtin_isnan(x)
 219 #undef isfinite
 220 #define isfinite(x) __builtin_isfinite(x)
 221 #undef isinf
 222 #define isinf(x) __builtin_isinf(x)
 223 #undef isnormal
 224 #define isnormal(x) __builtin_isnormal(x)
 225 #undef signbit
 226 #define signbit(x) __builtin_signbit(x)
 227
 228 /* TODO: find the C99 version of these an move into above ifdef.  */
 229 #define REALPART(z) (__real__(z))
 230 #define IMAGPART(z) (__imag__(z))
 231 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
 232
 233 #include "kinds.h"
 234
 235 /* Define the type used for the current record number for large file I/O.
 236    The size must be consistent with the size defined on the compiler side.  */
 237 #ifdef HAVE_GFC_INTEGER_8
 238 typedef GFC_INTEGER_8 GFC_IO_INT;
 239 #else
 240 #ifdef HAVE_GFC_INTEGER_4
 241 typedef GFC_INTEGER_4 GFC_IO_INT;
 242 #else
 243 #error "GFC_INTEGER_4 should be available for the library to compile".
 244 #endif
 245 #endif
 246
 247 /* The following two definitions must be consistent with the types used
 248    by the compiler.  */
 249 /* The type used of array indices, amongst other things.  */
 250 typedef ptrdiff_t index_type;
 251
 252 /* The type used for the lengths of character variables.  */
 253 typedef GFC_INTEGER_4 gfc_charlen_type;
 254
 255 /* Definitions of CHARACTER data types:
 256      - CHARACTER(KIND=1) corresponds to the C char type,
 257      - CHARACTER(KIND=4) corresponds to an unsigned 32-bit integer.  */
 258 typedef GFC_UINTEGER_4 gfc_char4_t;
 259
 260 /* Byte size of character kinds.  For the kinds currently supported, it's
 261    simply equal to the kind parameter itself.  */
 262 #define GFC_SIZE_OF_CHAR_KIND(kind) (kind)
 263
 264 /* This will be 0 on little-endian machines and one on big-endian machines.  */
 265 extern int big_endian;
 266 internal_proto(big_endian);
 267
 268 #define GFOR_POINTER_TO_L1(p, kind) \
 269   (big_endian * (kind - 1) + (GFC_LOGICAL_1 *)(p))
 270
 271 #define GFC_INTEGER_1_HUGE \
 272   (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)
 273 #define GFC_INTEGER_2_HUGE \
 274   (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)
 275 #define GFC_INTEGER_4_HUGE \
 276   (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
 277 #define GFC_INTEGER_8_HUGE \
 278   (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
 279 #ifdef HAVE_GFC_INTEGER_16
 280 #define GFC_INTEGER_16_HUGE \
 281   (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)
 282 #endif
 283
 284 /* M{IN,AX}{LOC,VAL} need also infinities and NaNs if supported.  */
 285
 286 #ifdef __FLT_HAS_INFINITY__
 287 # define GFC_REAL_4_INFINITY __builtin_inff ()
 288 #endif
 289 #ifdef __DBL_HAS_INFINITY__
 290 # define GFC_REAL_8_INFINITY __builtin_inf ()
 291 #endif
 292 #ifdef __LDBL_HAS_INFINITY__
 293 # ifdef HAVE_GFC_REAL_10
 294 #  define GFC_REAL_10_INFINITY __builtin_infl ()
 295 # endif
 296 # ifdef HAVE_GFC_REAL_16
 297 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 298 #   define GFC_REAL_16_INFINITY __builtin_infl ()
 299 #  else
 300 #   define GFC_REAL_16_INFINITY __builtin_infq ()
 301 #  endif
 302 # endif
 303 #endif
 304 #ifdef __FLT_HAS_QUIET_NAN__
 305 # define GFC_REAL_4_QUIET_NAN __builtin_nanf ("")
 306 #endif
 307 #ifdef __DBL_HAS_QUIET_NAN__
 308 # define GFC_REAL_8_QUIET_NAN __builtin_nan ("")
 309 #endif
 310 #ifdef __LDBL_HAS_QUIET_NAN__
 311 # ifdef HAVE_GFC_REAL_10
 312 #  define GFC_REAL_10_QUIET_NAN __builtin_nanl ("")
 313 # endif
 314 # ifdef HAVE_GFC_REAL_16
 315 #  ifdef GFC_REAL_16_IS_LONG_DOUBLE
 316 #   define GFC_REAL_16_QUIET_NAN __builtin_nanl ("")
 317 #  else
 318 #   define GFC_REAL_16_QUIET_NAN nanq ("")
 319 #  endif
 320 # endif
 321 #endif
 322
 323 typedef struct descriptor_dimension
 324 {
 325   index_type _stride;
 326   index_type lower_bound;
 327   index_type _ubound;
 328 }
 329
 330 descriptor_dimension;
 331
 332 #define GFC_ARRAY_DESCRIPTOR(r, type) \
 333 struct {\
 334   type *base_addr;\
 335   size_t offset;\
 336   index_type dtype;\
 337   descriptor_dimension dim[r];\
 338 }
 339
 340 /* Commonly used array descriptor types.  */
 341 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
 342 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
 343 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;
 344 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;
 345 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
 346 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
 347 #ifdef HAVE_GFC_INTEGER_16
 348 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;
 349 #endif
 350 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
 351 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
 352 #ifdef HAVE_GFC_REAL_10
 353 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;
 354 #endif
 355 #ifdef HAVE_GFC_REAL_16
 356 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;
 357 #endif
 358 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
 359 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
 360 #ifdef HAVE_GFC_COMPLEX_10
 361 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;
 362 #endif
 363 #ifdef HAVE_GFC_COMPLEX_16
 364 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;
 365 #endif
 366 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;
 367 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;
 368 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
 369 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
 370 #ifdef HAVE_GFC_LOGICAL_16
 371 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;
 372 #endif
 373
 374
 375 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
 376 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
 377                                    >> GFC_DTYPE_TYPE_SHIFT)
 378 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
 379 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->base_addr)
 380 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
 381
 382 #define GFC_DIMENSION_LBOUND(dim) ((dim).lower_bound)
 383 #define GFC_DIMENSION_UBOUND(dim) ((dim)._ubound)
 384 #define GFC_DIMENSION_STRIDE(dim) ((dim)._stride)
 385 #define GFC_DIMENSION_EXTENT(dim) ((dim)._ubound + 1 - (dim).lower_bound)
 386 #define GFC_DIMENSION_SET(dim,lb,ub,str) \
 387   do \
 388     { \
 389       (dim).lower_bound = lb;                   \
 390       (dim)._ubound = ub;                       \
 391       (dim)._stride = str;                      \
 392     } while (0)
 393
 394
 395 #define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i].lower_bound)
 396 #define GFC_DESCRIPTOR_UBOUND(desc,i) ((desc)->dim[i]._ubound)
 397 #define GFC_DESCRIPTOR_EXTENT(desc,i) ((desc)->dim[i]._ubound + 1 \
 398                                       - (desc)->dim[i].lower_bound)
 399 #define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \
 400   (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 401
 402 #define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)
 403 #define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \
 404   (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))
 405
 406 /* Macros to get both the size and the type with a single masking operation  */
 407
 408 #define GFC_DTYPE_SIZE_MASK \
 409   ((~((index_type) 0) >> GFC_DTYPE_SIZE_SHIFT) << GFC_DTYPE_SIZE_SHIFT)
 410 #define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)
 411
 412 #define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)
 413
 414 #define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 415    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 416 #define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 417    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 418 #define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 419    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 420 #define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 421    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 422 #ifdef HAVE_GFC_INTEGER_16
 423 #define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \
 424    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 425 #endif
 426
 427 #define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 428    | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))
 429 #define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 430    | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))
 431 #define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 432    | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))
 433 #define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 434    | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))
 435 #ifdef HAVE_GFC_LOGICAL_16
 436 #define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \
 437    | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))
 438 #endif
 439
 440 #define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 441    | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))
 442 #define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 443    | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))
 444 #ifdef HAVE_GFC_REAL_10
 445 #define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 446    | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))
 447 #endif
 448 #ifdef HAVE_GFC_REAL_16
 449 #define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \
 450    | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))
 451 #endif
 452
 453 #define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 454    | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))
 455 #define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 456    | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))
 457 #ifdef HAVE_GFC_COMPLEX_10
 458 #define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 459    | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))
 460 #endif
 461 #ifdef HAVE_GFC_COMPLEX_16
 462 #define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \
 463    | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))
 464 #endif
 465
 466 #define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 467    | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))
 468 #define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 469    | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))
 470 #define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 471    | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))
 472 #define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 473    | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))
 474 #ifdef HAVE_GFC_INTEGER_16
 475 #define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \
 476    | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))
 477 #endif
 478
 479 /* Macros to determine the alignment of pointers.  */
 480
 481 #define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \
 482                             (__alignof__(GFC_INTEGER_2) - 1))
 483 #define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \
 484                             (__alignof__(GFC_INTEGER_4) - 1))
 485 #define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \
 486                             (__alignof__(GFC_INTEGER_8) - 1))
 487 #ifdef HAVE_GFC_INTEGER_16
 488 #define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \
 489                              (__alignof__(GFC_INTEGER_16) - 1))
 490 #endif
 491
 492 #define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \
 493                              (__alignof__(GFC_COMPLEX_4) - 1))
 494
 495 #define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \
 496                              (__alignof__(GFC_COMPLEX_8) - 1))
 497
 498 /* Runtime library include.  */
 499 #define stringize(x) expand_macro(x)
 500 #define expand_macro(x) # x
 501
 502 /* Runtime options structure.  */
 503
 504 typedef struct
 505 {
 506   int stdin_unit, stdout_unit, stderr_unit, optional_plus;
 507   int locus;
 508
 509   int separator_len;
 510   const char *separator;
 511
 512   int all_unbuffered, unbuffered_preconnected, default_recl;
 513   int fpe, backtrace;
 514 }
 515 options_t;
 516
 517 extern options_t options;
 518 internal_proto(options);
 519
 520 extern void backtrace_handler (int);
 521 internal_proto(backtrace_handler);
 522
 523
 524 /* Compile-time options that will influence the library.  */
 525
 526 typedef struct
 527 {
 528   int warn_std;
 529   int allow_std;
 530   int pedantic;
 531   int convert;
 532   int backtrace;
 533   int sign_zero;
 534   size_t record_marker;
 535   int max_subrecord_length;
 536   int bounds_check;
 537   int fpe_summary;
 538 }
 539 compile_options_t;
 540
 541 extern compile_options_t compile_options;
 542 internal_proto(compile_options);
 543
 544 extern void init_compile_options (void);
 545 internal_proto(init_compile_options);
 546
 547 #define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */
 548
 549 /* Structure for statement options.  */
 550
 551 typedef struct
 552 {
 553   const char *name;
 554   int value;
 555 }
 556 st_option;
 557
 558
 559 /* This is returned by notification_std to know if, given the flags
 560    that were given (-std=, -pedantic) we should issue an error, a warning
 561    or nothing.  */
 562 typedef enum
 563 { NOTIFICATION_SILENT, NOTIFICATION_WARNING, NOTIFICATION_ERROR }
 564 notification;
 565
 566
 567 /* The filename and line number don't go inside the globals structure.
 568    They are set by the rest of the program and must be linked to.  */
 569
 570 /* Location of the current library call (optional).  */
 571 extern unsigned line;
 572 iexport_data_proto(line);
 573
 574 extern char *filename;
 575 iexport_data_proto(filename);
 576
 577 /* Avoid conflicting prototypes of alloca() in system headers by using
 578    GCC's builtin alloca().  */
 579 #define gfc_alloca(x)  __builtin_alloca(x)
 580
 581
 582 /* The default value of record length for preconnected units is defined
 583    here. This value can be overriden by an environment variable.
 584    Default value is 1 Gb.  */
 585 #define DEFAULT_RECL 1073741824
 586
 587
 588 #define CHARACTER2(name) \
 589               gfc_charlen_type name ## _len; \
 590               char * name
 591
 592 typedef struct st_parameter_common
 593 {
 594   GFC_INTEGER_4 flags;
 595   GFC_INTEGER_4 unit;
 596   const char *filename;
 597   GFC_INTEGER_4 line;
 598   CHARACTER2 (iomsg);
 599   GFC_INTEGER_4 *iostat;
 600 }
 601 st_parameter_common;
 602
 603 #undef CHARACTER2
 604
 605 #define IOPARM_LIBRETURN_MASK           (3 << 0)
 606 #define IOPARM_LIBRETURN_OK             (0 << 0)
 607 #define IOPARM_LIBRETURN_ERROR          (1 << 0)
 608 #define IOPARM_LIBRETURN_END            (2 << 0)
 609 #define IOPARM_LIBRETURN_EOR            (3 << 0)
 610 #define IOPARM_ERR                      (1 << 2)
 611 #define IOPARM_END                      (1 << 3)
 612 #define IOPARM_EOR                      (1 << 4)
 613 #define IOPARM_HAS_IOSTAT               (1 << 5)
 614 #define IOPARM_HAS_IOMSG                (1 << 6)
 615
 616 #define IOPARM_COMMON_MASK              ((1 << 7) - 1)
 617
 618 #define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)
 619 #define IOPARM_OPEN_HAS_FILE            (1 << 8)
 620 #define IOPARM_OPEN_HAS_STATUS          (1 << 9)
 621 #define IOPARM_OPEN_HAS_ACCESS          (1 << 10)
 622 #define IOPARM_OPEN_HAS_FORM            (1 << 11)
 623 #define IOPARM_OPEN_HAS_BLANK           (1 << 12)
 624 #define IOPARM_OPEN_HAS_POSITION        (1 << 13)
 625 #define IOPARM_OPEN_HAS_ACTION          (1 << 14)
 626 #define IOPARM_OPEN_HAS_DELIM           (1 << 15)
 627 #define IOPARM_OPEN_HAS_PAD             (1 << 16)
 628 #define IOPARM_OPEN_HAS_CONVERT         (1 << 17)
 629 #define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)
 630 #define IOPARM_OPEN_HAS_ENCODING        (1 << 19)
 631 #define IOPARM_OPEN_HAS_ROUND           (1 << 20)
 632 #define IOPARM_OPEN_HAS_SIGN            (1 << 21)
 633 #define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)
 634 #define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)
 635
 636 /* library start function and end macro.  These can be expanded if needed
 637    in the future.  cmp is st_parameter_common *cmp  */
 638
 639 extern void library_start (st_parameter_common *);
 640 internal_proto(library_start);
 641
 642 #define library_end()
 643
 644 /* main.c */
 645
 646 extern void stupid_function_name_for_static_linking (void);
 647 internal_proto(stupid_function_name_for_static_linking);
 648
 649 extern void set_args (int, char **);
 650 iexport_proto(set_args);
 651
 652 extern void get_args (int *, char ***);
 653 internal_proto(get_args);
 654
 655 extern void store_exe_path (const char *);
 656 export_proto(store_exe_path);
 657
 658 extern char * full_exe_path (void);
 659 internal_proto(full_exe_path);
 660
 661 extern void find_addr2line (void);
 662 internal_proto(find_addr2line);
 663
 664 /* backtrace.c */
 665
 666 extern void backtrace (void);
 667 iexport_proto(backtrace);
 668
 669 /* error.c */
 670
 671 #if defined(HAVE_GFC_REAL_16)
 672 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))
 673 #elif defined(HAVE_GFC_INTEGER_16)
 674 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 675 #elif defined(HAVE_GFC_REAL_10)
 676 #define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))
 677 #else
 678 #define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))
 679 #endif
 680
 681 #define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)
 682 #define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)
 683 #define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)
 684 #define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)
 685
 686 extern void sys_abort (void) __attribute__ ((noreturn));
 687 internal_proto(sys_abort);
 688
 689 extern ssize_t estr_write (const char *);
 690 internal_proto(estr_write);
 691
 692 extern int st_vprintf (const char *, va_list);
 693 internal_proto(st_vprintf);
 694
 695 extern int st_printf (const char *, ...)
 696   __attribute__((format (gfc_printf, 1, 2)));
 697 internal_proto(st_printf);
 698
 699 extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);
 700 internal_proto(gfc_xtoa);
 701
 702 extern void os_error (const char *) __attribute__ ((noreturn));
 703 iexport_proto(os_error);
 704
 705 extern void show_locus (st_parameter_common *);
 706 internal_proto(show_locus);
 707
 708 extern void runtime_error (const char *, ...)
 709      __attribute__ ((noreturn, format (gfc_printf, 1, 2)));
 710 iexport_proto(runtime_error);
 711
 712 extern void runtime_error_at (const char *, const char *, ...)
 713      __attribute__ ((noreturn, format (gfc_printf, 2, 3)));
 714 iexport_proto(runtime_error_at);
 715
 716 extern void runtime_warning_at (const char *, const char *, ...)
 717      __attribute__ ((format (gfc_printf, 2, 3)));
 718 iexport_proto(runtime_warning_at);
 719
 720 extern void internal_error (st_parameter_common *, const char *)
 721   __attribute__ ((noreturn));
 722 internal_proto(internal_error);
 723
 724 extern const char *translate_error (int);
 725 internal_proto(translate_error);
 726
 727 extern void generate_error (st_parameter_common *, int, const char *);
 728 iexport_proto(generate_error);
 729
 730 extern void generate_warning (st_parameter_common *, const char *);
 731 internal_proto(generate_warning);
 732
 733 extern bool notify_std (st_parameter_common *, int, const char *);
 734 internal_proto(notify_std);
 735
 736 extern notification notification_std(int);
 737 internal_proto(notification_std);
 738
 739 extern char *gf_strerror (int, char *, size_t);
 740 internal_proto(gf_strerror);
 741
 742 /* fpu.c */
 743
 744 extern void set_fpu (void);
 745 internal_proto(set_fpu);
 746
 747 extern int get_fpu_except_flags (void);
 748 internal_proto(get_fpu_except_flags);
 749
 750 extern void set_fpu_rounding_mode (int round);
 751 internal_proto(set_fpu_rounding_mode);
 752
 753 extern int get_fpu_rounding_mode (void);
 754 internal_proto(get_fpu_rounding_mode);
 755
 756 /* memory.c */
 757
 758 extern void *xmalloc (size_t) __attribute__ ((malloc));
 759 internal_proto(xmalloc);
 760
 761 extern void *xcalloc (size_t, size_t) __attribute__ ((malloc));
 762 internal_proto(xcalloc);
 763
 764
 765 /* environ.c */
 766
 767 extern int check_buffered (int);
 768 internal_proto(check_buffered);
 769
 770 extern void init_variables (void);
 771 internal_proto(init_variables);
 772
 773 extern void show_variables (void);
 774 internal_proto(show_variables);
 775
 776 unit_convert get_unformatted_convert (int);
 777 internal_proto(get_unformatted_convert);
 778
 779 /* Secure getenv() which returns NULL if running as SUID/SGID.  */
 780 #ifndef HAVE_SECURE_GETENV
 781 #ifdef HAVE___SECURE_GETENV
 782 #define secure_getenv __secure_getenv
 783 #elif defined(HAVE_GETUID) && defined(HAVE_GETEUID) \
 784   && defined(HAVE_GETGID) && defined(HAVE_GETEGID)
 785 #define FALLBACK_SECURE_GETENV
 786 extern char *secure_getenv (const char *);
 787 internal_proto(secure_getenv);
 788 #else
 789 #define secure_getenv getenv
 790 #endif
 791 #endif
 792
 793 /* string.c */
 794
 795 extern int find_option (st_parameter_common *, const char *, gfc_charlen_type,
 796                         const st_option *, const char *);
 797 internal_proto(find_option);
 798
 799 extern gfc_charlen_type fstrlen (const char *, gfc_charlen_type);
 800 internal_proto(fstrlen);
 801
 802 extern gfc_charlen_type fstrcpy (char *, gfc_charlen_type, const char *, gfc_charlen_type);
 803 internal_proto(fstrcpy);
 804
 805 extern gfc_charlen_type cf_strcpy (char *, gfc_charlen_type, const char *);
 806 internal_proto(cf_strcpy);
 807
 808 extern gfc_charlen_type string_len_trim (gfc_charlen_type, const char *);
 809 export_proto(string_len_trim);
 810
 811 extern gfc_charlen_type string_len_trim_char4 (gfc_charlen_type,
 812                                                const gfc_char4_t *);
 813 export_proto(string_len_trim_char4);
 814
 815 /* io/intrinsics.c */
 816
 817 extern void flush_all_units (void);
 818 internal_proto(flush_all_units);
 819
 820 /* io.c */
 821
 822 extern void init_units (void);
 823 internal_proto(init_units);
 824
 825 extern void close_units (void);
 826 internal_proto(close_units);
 827
 828 extern int unit_to_fd (int);
 829 internal_proto(unit_to_fd);
 830
 831 extern char * filename_from_unit (int);
 832 internal_proto(filename_from_unit);
 833
 834 /* stop.c */
 835
 836 extern void stop_string (const char *, GFC_INTEGER_4)
 837   __attribute__ ((noreturn));
 838 export_proto(stop_string);
 839
 840 /* reshape_packed.c */
 841
 842 extern void reshape_packed (char *, index_type, const char *, index_type,
 843                             const char *, index_type);
 844 internal_proto(reshape_packed);
 845
 846 /* Repacking functions.  These are called internally by internal_pack
 847    and internal_unpack.  */
 848
 849 GFC_INTEGER_1 *internal_pack_1 (gfc_array_i1 *);
 850 internal_proto(internal_pack_1);
 851
 852 GFC_INTEGER_2 *internal_pack_2 (gfc_array_i2 *);
 853 internal_proto(internal_pack_2);
 854
 855 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
 856 internal_proto(internal_pack_4);
 857
 858 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
 859 internal_proto(internal_pack_8);
 860
 861 #if defined HAVE_GFC_INTEGER_16
 862 GFC_INTEGER_16 *internal_pack_16 (gfc_array_i16 *);
 863 internal_proto(internal_pack_16);
 864 #endif
 865
 866 GFC_REAL_4 *internal_pack_r4 (gfc_array_r4 *);
 867 internal_proto(internal_pack_r4);
 868
 869 GFC_REAL_8 *internal_pack_r8 (gfc_array_r8 *);
 870 internal_proto(internal_pack_r8);
 871
 872 #if defined HAVE_GFC_REAL_10
 873 GFC_REAL_10 *internal_pack_r10 (gfc_array_r10 *);
 874 internal_proto(internal_pack_r10);
 875 #endif
 876
 877 #if defined HAVE_GFC_REAL_16
 878 GFC_REAL_16 *internal_pack_r16 (gfc_array_r16 *);
 879 internal_proto(internal_pack_r16);
 880 #endif
 881
 882 GFC_COMPLEX_4 *internal_pack_c4 (gfc_array_c4 *);
 883 internal_proto(internal_pack_c4);
 884
 885 GFC_COMPLEX_8 *internal_pack_c8 (gfc_array_c8 *);
 886 internal_proto(internal_pack_c8);
 887
 888 #if defined HAVE_GFC_COMPLEX_10
 889 GFC_COMPLEX_10 *internal_pack_c10 (gfc_array_c10 *);
 890 internal_proto(internal_pack_c10);
 891 #endif
 892
 893 #if defined HAVE_GFC_COMPLEX_16
 894 GFC_COMPLEX_16 *internal_pack_c16 (gfc_array_c16 *);
 895 internal_proto(internal_pack_c16);
 896 #endif
 897
 898 extern void internal_unpack_1 (gfc_array_i1 *, const GFC_INTEGER_1 *);
 899 internal_proto(internal_unpack_1);
 900
 901 extern void internal_unpack_2 (gfc_array_i2 *, const GFC_INTEGER_2 *);
 902 internal_proto(internal_unpack_2);
 903
 904 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
 905 internal_proto(internal_unpack_4);
 906
 907 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
 908 internal_proto(internal_unpack_8);
 909
 910 #if defined HAVE_GFC_INTEGER_16
 911 extern void internal_unpack_16 (gfc_array_i16 *, const GFC_INTEGER_16 *);
 912 internal_proto(internal_unpack_16);
 913 #endif
 914
 915 extern void internal_unpack_r4 (gfc_array_r4 *, const GFC_REAL_4 *);
 916 internal_proto(internal_unpack_r4);
 917
 918 extern void internal_unpack_r8 (gfc_array_r8 *, const GFC_REAL_8 *);
 919 internal_proto(internal_unpack_r8);
 920
 921 #if defined HAVE_GFC_REAL_10
 922 extern void internal_unpack_r10 (gfc_array_r10 *, const GFC_REAL_10 *);
 923 internal_proto(internal_unpack_r10);
 924 #endif
 925
 926 #if defined HAVE_GFC_REAL_16
 927 extern void internal_unpack_r16 (gfc_array_r16 *, const GFC_REAL_16 *);
 928 internal_proto(internal_unpack_r16);
 929 #endif
 930
 931 extern void internal_unpack_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *);
 932 internal_proto(internal_unpack_c4);
 933
 934 extern void internal_unpack_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *);
 935 internal_proto(internal_unpack_c8);
 936
 937 #if defined HAVE_GFC_COMPLEX_10
 938 extern void internal_unpack_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *);
 939 internal_proto(internal_unpack_c10);
 940 #endif
 941
 942 #if defined HAVE_GFC_COMPLEX_16
 943 extern void internal_unpack_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *);
 944 internal_proto(internal_unpack_c16);
 945 #endif
 946
 947 /* Internal auxiliary functions for the pack intrinsic.  */
 948
 949 extern void pack_i1 (gfc_array_i1 *, const gfc_array_i1 *,
 950                      const gfc_array_l1 *, const gfc_array_i1 *);
 951 internal_proto(pack_i1);
 952
 953 extern void pack_i2 (gfc_array_i2 *, const gfc_array_i2 *,
 954                      const gfc_array_l1 *, const gfc_array_i2 *);
 955 internal_proto(pack_i2);
 956
 957 extern void pack_i4 (gfc_array_i4 *, const gfc_array_i4 *,
 958                      const gfc_array_l1 *, const gfc_array_i4 *);
 959 internal_proto(pack_i4);
 960
 961 extern void pack_i8 (gfc_array_i8 *, const gfc_array_i8 *,
 962                      const gfc_array_l1 *, const gfc_array_i8 *);
 963 internal_proto(pack_i8);
 964
 965 #ifdef HAVE_GFC_INTEGER_16
 966 extern void pack_i16 (gfc_array_i16 *, const gfc_array_i16 *,
 967                      const gfc_array_l1 *, const gfc_array_i16 *);
 968 internal_proto(pack_i16);
 969 #endif
 970
 971 extern void pack_r4 (gfc_array_r4 *, const gfc_array_r4 *,
 972                      const gfc_array_l1 *, const gfc_array_r4 *);
 973 internal_proto(pack_r4);
 974
 975 extern void pack_r8 (gfc_array_r8 *, const gfc_array_r8 *,
 976                      const gfc_array_l1 *, const gfc_array_r8 *);
 977 internal_proto(pack_r8);
 978
 979 #ifdef HAVE_GFC_REAL_10
 980 extern void pack_r10 (gfc_array_r10 *, const gfc_array_r10 *,
 981                      const gfc_array_l1 *, const gfc_array_r10 *);
 982 internal_proto(pack_r10);
 983 #endif
 984
 985 #ifdef HAVE_GFC_REAL_16
 986 extern void pack_r16 (gfc_array_r16 *, const gfc_array_r16 *,
 987                      const gfc_array_l1 *, const gfc_array_r16 *);
 988 internal_proto(pack_r16);
 989 #endif
 990
 991 extern void pack_c4 (gfc_array_c4 *, const gfc_array_c4 *,
 992                      const gfc_array_l1 *, const gfc_array_c4 *);
 993 internal_proto(pack_c4);
 994
 995 extern void pack_c8 (gfc_array_c8 *, const gfc_array_c8 *,
 996                      const gfc_array_l1 *, const gfc_array_c8 *);
 997 internal_proto(pack_c8);
 998
 999 #ifdef HAVE_GFC_REAL_10
1000 extern void pack_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1001                      const gfc_array_l1 *, const gfc_array_c10 *);
1002 internal_proto(pack_c10);
1003 #endif
1004
1005 #ifdef HAVE_GFC_REAL_16
1006 extern void pack_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1007                      const gfc_array_l1 *, const gfc_array_c16 *);
1008 internal_proto(pack_c16);
1009 #endif
1010
1011 /* Internal auxiliary functions for the unpack intrinsic.  */
1012
1013 extern void unpack0_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1014                         const gfc_array_l1 *, const GFC_INTEGER_1 *);
1015 internal_proto(unpack0_i1);
1016
1017 extern void unpack0_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1018                         const gfc_array_l1 *, const GFC_INTEGER_2 *);
1019 internal_proto(unpack0_i2);
1020
1021 extern void unpack0_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1022                         const gfc_array_l1 *, const GFC_INTEGER_4 *);
1023 internal_proto(unpack0_i4);
1024
1025 extern void unpack0_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1026                         const gfc_array_l1 *, const GFC_INTEGER_8 *);
1027 internal_proto(unpack0_i8);
1028
1029 #ifdef HAVE_GFC_INTEGER_16
1030
1031 extern void unpack0_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1032                          const gfc_array_l1 *, const GFC_INTEGER_16 *);
1033 internal_proto(unpack0_i16);
1034
1035 #endif
1036
1037 extern void unpack0_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1038                         const gfc_array_l1 *, const GFC_REAL_4 *);
1039 internal_proto(unpack0_r4);
1040
1041 extern void unpack0_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1042                         const gfc_array_l1 *, const GFC_REAL_8 *);
1043 internal_proto(unpack0_r8);
1044
1045 #ifdef HAVE_GFC_REAL_10
1046
1047 extern void unpack0_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1048                          const gfc_array_l1 *, const GFC_REAL_10 *);
1049 internal_proto(unpack0_r10);
1050
1051 #endif
1052
1053 #ifdef HAVE_GFC_REAL_16
1054
1055 extern void unpack0_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1056                          const gfc_array_l1 *, const GFC_REAL_16 *);
1057 internal_proto(unpack0_r16);
1058
1059 #endif
1060
1061 extern void unpack0_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1062                         const gfc_array_l1 *, const GFC_COMPLEX_4 *);
1063 internal_proto(unpack0_c4);
1064
1065 extern void unpack0_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1066                         const gfc_array_l1 *, const GFC_COMPLEX_8 *);
1067 internal_proto(unpack0_c8);
1068
1069 #ifdef HAVE_GFC_COMPLEX_10
1070
1071 extern void unpack0_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1072                          const gfc_array_l1 *mask, const GFC_COMPLEX_10 *);
1073 internal_proto(unpack0_c10);
1074
1075 #endif
1076
1077 #ifdef HAVE_GFC_COMPLEX_16
1078
1079 extern void unpack0_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1080                          const gfc_array_l1 *, const GFC_COMPLEX_16 *);
1081 internal_proto(unpack0_c16);
1082
1083 #endif
1084
1085 extern void unpack1_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1086                         const gfc_array_l1 *, const gfc_array_i1 *);
1087 internal_proto(unpack1_i1);
1088
1089 extern void unpack1_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1090                         const gfc_array_l1 *, const gfc_array_i2 *);
1091 internal_proto(unpack1_i2);
1092
1093 extern void unpack1_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1094                         const gfc_array_l1 *, const gfc_array_i4 *);
1095 internal_proto(unpack1_i4);
1096
1097 extern void unpack1_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1098                         const gfc_array_l1 *, const gfc_array_i8 *);
1099 internal_proto(unpack1_i8);
1100
1101 #ifdef HAVE_GFC_INTEGER_16
1102 extern void unpack1_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1103                          const gfc_array_l1 *, const gfc_array_i16 *);
1104 internal_proto(unpack1_i16);
1105 #endif
1106
1107 extern void unpack1_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1108                         const gfc_array_l1 *, const gfc_array_r4 *);
1109 internal_proto(unpack1_r4);
1110
1111 extern void unpack1_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1112                         const gfc_array_l1 *, const gfc_array_r8 *);
1113 internal_proto(unpack1_r8);
1114
1115 #ifdef HAVE_GFC_REAL_10
1116 extern void unpack1_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1117                          const gfc_array_l1 *, const gfc_array_r10 *);
1118 internal_proto(unpack1_r10);
1119 #endif
1120
1121 #ifdef HAVE_GFC_REAL_16
1122 extern void unpack1_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1123                          const gfc_array_l1 *, const gfc_array_r16 *);
1124 internal_proto(unpack1_r16);
1125 #endif
1126
1127 extern void unpack1_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1128                         const gfc_array_l1 *, const gfc_array_c4 *);
1129 internal_proto(unpack1_c4);
1130
1131 extern void unpack1_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1132                         const gfc_array_l1 *, const gfc_array_c8 *);
1133 internal_proto(unpack1_c8);
1134
1135 #ifdef HAVE_GFC_COMPLEX_10
1136 extern void unpack1_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1137                          const gfc_array_l1 *, const gfc_array_c10 *);
1138 internal_proto(unpack1_c10);
1139 #endif
1140
1141 #ifdef HAVE_GFC_COMPLEX_16
1142 extern void unpack1_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1143                          const gfc_array_l1 *, const gfc_array_c16 *);
1144 internal_proto(unpack1_c16);
1145 #endif
1146
1147 /* Helper functions for spread.  */
1148
1149 extern void spread_i1 (gfc_array_i1 *, const gfc_array_i1 *,
1150                        const index_type, const index_type);
1151 internal_proto(spread_i1);
1152
1153 extern void spread_i2 (gfc_array_i2 *, const gfc_array_i2 *,
1154                        const index_type, const index_type);
1155 internal_proto(spread_i2);
1156
1157 extern void spread_i4 (gfc_array_i4 *, const gfc_array_i4 *,
1158                        const index_type, const index_type);
1159 internal_proto(spread_i4);
1160
1161 extern void spread_i8 (gfc_array_i8 *, const gfc_array_i8 *,
1162                        const index_type, const index_type);
1163 internal_proto(spread_i8);
1164
1165 #ifdef HAVE_GFC_INTEGER_16
1166 extern void spread_i16 (gfc_array_i16 *, const gfc_array_i16 *,
1167                        const index_type, const index_type);
1168 internal_proto(spread_i16);
1169
1170 #endif
1171
1172 extern void spread_r4 (gfc_array_r4 *, const gfc_array_r4 *,
1173                        const index_type, const index_type);
1174 internal_proto(spread_r4);
1175
1176 extern void spread_r8 (gfc_array_r8 *, const gfc_array_r8 *,
1177                        const index_type, const index_type);
1178 internal_proto(spread_r8);
1179
1180 #ifdef HAVE_GFC_REAL_10
1181 extern void spread_r10 (gfc_array_r10 *, const gfc_array_r10 *,
1182                        const index_type, const index_type);
1183 internal_proto(spread_r10);
1184
1185 #endif
1186
1187 #ifdef HAVE_GFC_REAL_16
1188 extern void spread_r16 (gfc_array_r16 *, const gfc_array_r16 *,
1189                        const index_type, const index_type);
1190 internal_proto(spread_r16);
1191
1192 #endif
1193
1194 extern void spread_c4 (gfc_array_c4 *, const gfc_array_c4 *,
1195                        const index_type, const index_type);
1196 internal_proto(spread_c4);
1197
1198 extern void spread_c8 (gfc_array_c8 *, const gfc_array_c8 *,
1199                        const index_type, const index_type);
1200 internal_proto(spread_c8);
1201
1202 #ifdef HAVE_GFC_COMPLEX_10
1203 extern void spread_c10 (gfc_array_c10 *, const gfc_array_c10 *,
1204                        const index_type, const index_type);
1205 internal_proto(spread_c10);
1206
1207 #endif
1208
1209 #ifdef HAVE_GFC_COMPLEX_16
1210 extern void spread_c16 (gfc_array_c16 *, const gfc_array_c16 *,
1211                        const index_type, const index_type);
1212 internal_proto(spread_c16);
1213
1214 #endif
1215
1216 extern void spread_scalar_i1 (gfc_array_i1 *, const GFC_INTEGER_1 *,
1217                               const index_type, const index_type);
1218 internal_proto(spread_scalar_i1);
1219
1220 extern void spread_scalar_i2 (gfc_array_i2 *, const GFC_INTEGER_2 *,
1221                               const index_type, const index_type);
1222 internal_proto(spread_scalar_i2);
1223
1224 extern void spread_scalar_i4 (gfc_array_i4 *, const GFC_INTEGER_4 *,
1225                               const index_type, const index_type);
1226 internal_proto(spread_scalar_i4);
1227
1228 extern void spread_scalar_i8 (gfc_array_i8 *, const GFC_INTEGER_8 *,
1229                               const index_type, const index_type);
1230 internal_proto(spread_scalar_i8);
1231
1232 #ifdef HAVE_GFC_INTEGER_16
1233 extern void spread_scalar_i16 (gfc_array_i16 *, const GFC_INTEGER_16 *,
1234                                const index_type, const index_type);
1235 internal_proto(spread_scalar_i16);
1236
1237 #endif
1238
1239 extern void spread_scalar_r4 (gfc_array_r4 *, const GFC_REAL_4 *,
1240                               const index_type, const index_type);
1241 internal_proto(spread_scalar_r4);
1242
1243 extern void spread_scalar_r8 (gfc_array_r8 *, const GFC_REAL_8 *,
1244                               const index_type, const index_type);
1245 internal_proto(spread_scalar_r8);
1246
1247 #ifdef HAVE_GFC_REAL_10
1248 extern void spread_scalar_r10 (gfc_array_r10 *, const GFC_REAL_10 *,
1249                                const index_type, const index_type);
1250 internal_proto(spread_scalar_r10);
1251
1252 #endif
1253
1254 #ifdef HAVE_GFC_REAL_16
1255 extern void spread_scalar_r16 (gfc_array_r16 *, const GFC_REAL_16 *,
1256                                const index_type, const index_type);
1257 internal_proto(spread_scalar_r16);
1258
1259 #endif
1260
1261 extern void spread_scalar_c4 (gfc_array_c4 *, const GFC_COMPLEX_4 *,
1262                               const index_type, const index_type);
1263 internal_proto(spread_scalar_c4);
1264
1265 extern void spread_scalar_c8 (gfc_array_c8 *, const GFC_COMPLEX_8 *,
1266                               const index_type, const index_type);
1267 internal_proto(spread_scalar_c8);
1268
1269 #ifdef HAVE_GFC_COMPLEX_10
1270 extern void spread_scalar_c10 (gfc_array_c10 *, const GFC_COMPLEX_10 *,
1271                                const index_type, const index_type);
1272 internal_proto(spread_scalar_c10);
1273
1274 #endif
1275
1276 #ifdef HAVE_GFC_COMPLEX_16
1277 extern void spread_scalar_c16 (gfc_array_c16 *, const GFC_COMPLEX_16 *,
1278                                const index_type, const index_type);
1279 internal_proto(spread_scalar_c16);
1280
1281 #endif
1282
1283 /* string_intrinsics.c */
1284
1285 extern int compare_string (gfc_charlen_type, const char *,
1286                            gfc_charlen_type, const char *);
1287 iexport_proto(compare_string);
1288
1289 extern int compare_string_char4 (gfc_charlen_type, const gfc_char4_t *,
1290                                  gfc_charlen_type, const gfc_char4_t *);
1291 iexport_proto(compare_string_char4);
1292
1293 extern int memcmp_char4 (const void *, const void *, size_t);
1294 internal_proto(memcmp_char4);
1295
1296
1297 /* random.c */
1298
1299 extern void random_seed_i4 (GFC_INTEGER_4 * size, gfc_array_i4 * put,
1300                             gfc_array_i4 * get);
1301 iexport_proto(random_seed_i4);
1302 extern void random_seed_i8 (GFC_INTEGER_8 * size, gfc_array_i8 * put,
1303                             gfc_array_i8 * get);
1304 iexport_proto(random_seed_i8);
1305
1306 /* size.c */
1307
1308 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
1309
1310 extern index_type size0 (const array_t * array);
1311 iexport_proto(size0);
1312
1313 /* bounds.c */
1314
1315 extern void bounds_equal_extents (array_t *, array_t *, const char *,
1316                                   const char *);
1317 internal_proto(bounds_equal_extents);
1318
1319 extern void bounds_reduced_extents (array_t *, array_t *, int, const char *,
1320                              const char *intrinsic);
1321 internal_proto(bounds_reduced_extents);
1322
1323 extern void bounds_iforeach_return (array_t *, array_t *, const char *);
1324 internal_proto(bounds_iforeach_return);
1325
1326 extern void bounds_ifunction_return (array_t *, const index_type *,
1327                                      const char *, const char *);
1328 internal_proto(bounds_ifunction_return);
1329
1330 extern index_type count_0 (const gfc_array_l1 *);
1331
1332 internal_proto(count_0);
1333
1334 /* Internal auxiliary functions for cshift */
1335
1336 void cshift0_i1 (gfc_array_i1 *, const gfc_array_i1 *, ptrdiff_t, int);
1337 internal_proto(cshift0_i1);
1338
1339 void cshift0_i2 (gfc_array_i2 *, const gfc_array_i2 *, ptrdiff_t, int);
1340 internal_proto(cshift0_i2);
1341
1342 void cshift0_i4 (gfc_array_i4 *, const gfc_array_i4 *, ptrdiff_t, int);
1343 internal_proto(cshift0_i4);
1344
1345 void cshift0_i8 (gfc_array_i8 *, const gfc_array_i8 *, ptrdiff_t, int);
1346 internal_proto(cshift0_i8);
1347
1348 #ifdef HAVE_GFC_INTEGER_16
1349 void cshift0_i16 (gfc_array_i16 *, const gfc_array_i16 *, ptrdiff_t, int);
1350 internal_proto(cshift0_i16);
1351 #endif
1352
1353 void cshift0_r4 (gfc_array_r4 *, const gfc_array_r4 *, ptrdiff_t, int);
1354 internal_proto(cshift0_r4);
1355
1356 void cshift0_r8 (gfc_array_r8 *, const gfc_array_r8 *, ptrdiff_t, int);
1357 internal_proto(cshift0_r8);
1358
1359 #ifdef HAVE_GFC_REAL_10
1360 void cshift0_r10 (gfc_array_r10 *, const gfc_array_r10 *, ptrdiff_t, int);
1361 internal_proto(cshift0_r10);
1362 #endif
1363
1364 #ifdef HAVE_GFC_REAL_16
1365 void cshift0_r16 (gfc_array_r16 *, const gfc_array_r16 *, ptrdiff_t, int);
1366 internal_proto(cshift0_r16);
1367 #endif
1368
1369 void cshift0_c4 (gfc_array_c4 *, const gfc_array_c4 *, ptrdiff_t, int);
1370 internal_proto(cshift0_c4);
1371
1372 void cshift0_c8 (gfc_array_c8 *, const gfc_array_c8 *, ptrdiff_t, int);
1373 internal_proto(cshift0_c8);
1374
1375 #ifdef HAVE_GFC_COMPLEX_10
1376 void cshift0_c10 (gfc_array_c10 *, const gfc_array_c10 *, ptrdiff_t, int);
1377 internal_proto(cshift0_c10);
1378 #endif
1379
1380 #ifdef HAVE_GFC_COMPLEX_16
1381 void cshift0_c16 (gfc_array_c16 *, const gfc_array_c16 *, ptrdiff_t, int);
1382 internal_proto(cshift0_c16);
1383 #endif
1384
1385 #endif  /* LIBGFOR_H  */