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/* Common declarations for all of libgfortran.

   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,

   2011

   Free Software Foundation, Inc.

   Contributed by Paul Brook <paul@nowt.org>, and

   Andy Vaught <andy@xena.eas.asu.edu>

This file is part of the GNU Fortran runtime library (libgfortran).

Libgfortran is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

Libgfortran is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

#ifndef LIBGFOR_H

#define LIBGFOR_H

/* Ensure that ANSI conform stdio is used. This needs to be set before

   any system header file is included.  */

#if defined __MINGW32__

#  define _POSIX 1

#  define gfc_printf gnu_printf

#else

#  define gfc_printf __printf__

#endif

/* config.h MUST be first because it can affect system headers.  */

#include "config.h"

#include <stdio.h>

#include <math.h>

#include <stddef.h>

#include <float.h>

#include <stdarg.h>

/* If we're support quad-precision floating-point type, include the

   header to our support library.  */

#ifdef HAVE_FLOAT128

#  include "quadmath_weak.h"

#endif

#ifdef __MINGW32__

extern float __strtof (const char *, char **);

#define gfc_strtof __strtof

extern double __strtod (const char *, char **);

#define gfc_strtod __strtod

extern long double __strtold (const char *, char **);

#define gfc_strtold __strtold

#else

#define gfc_strtof strtof

#define gfc_strtod strtod

#define gfc_strtold strtold

#endif

#if HAVE_COMPLEX_H

# include <complex.h>

#else

#define complex __complex__

#endif

#include "../gcc/fortran/libgfortran.h"

#include "c99_protos.h"

#if HAVE_IEEEFP_H

#include <ieeefp.h>

#endif

#include "gstdint.h"

#if HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#ifdef __MINGW32__

typedef off64_t gfc_offset;

#else

typedef off_t gfc_offset;

#endif

#ifndef NULL

#define NULL (void *) 0

#endif

#ifndef __GNUC__

#define __attribute__(x)

#define likely(x)       (x)

#define unlikely(x)     (x)

#else

#define likely(x)       __builtin_expect(!!(x), 1)

#define unlikely(x)     __builtin_expect(!!(x), 0)

#endif

/* Make sure we have ptrdiff_t. */

#ifndef HAVE_PTRDIFF_T

typedef intptr_t ptrdiff_t;

#endif

/* On mingw, work around the buggy Windows snprintf() by using the one

   mingw provides, __mingw_snprintf().  We also provide a prototype for

   __mingw_snprintf(), because the mingw headers currently don't have one.  */

#if HAVE_MINGW_SNPRINTF

extern int __mingw_snprintf (char *, size_t, const char *, ...)

     __attribute__ ((format (gnu_printf, 3, 4)));

#undef snprintf

#define snprintf __mingw_snprintf

/* Fallback to sprintf if target does not have snprintf.  */

#elif !defined(HAVE_SNPRINTF)

#undef snprintf

#define snprintf(str, size, ...) sprintf (str, __VA_ARGS__)

#endif

/* For a library, a standard prefix is a requirement in order to partition

   the namespace.  IPREFIX is for symbols intended to be internal to the

   library.  */

#define PREFIX(x)       _gfortran_ ## x

#define IPREFIX(x)      _gfortrani_ ## x

/* Magic to rename a symbol at the compiler level.  You continue to refer

   to the symbol as OLD in the source, but it'll be named NEW in the asm.  */

#define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)

#define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)

#define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)

/* There are several classifications of routines:

     (1) Symbols used only within the library,

     (2) Symbols to be exported from the library,

     (3) Symbols to be exported from the library, but

         also used inside the library.

   By telling the compiler about these different classifications we can

   tightly control the interface seen by the user, and get better code

   from the compiler at the same time.

   One of the following should be used immediately after the declaration

   of each symbol:

     internal_proto     Marks a symbol used only within the library,

                        and adds IPREFIX to the assembly-level symbol

                        name.  The later is important for maintaining

                        the namespace partition for the static library.

     export_proto       Marks a symbol to be exported, and adds PREFIX

                        to the assembly-level symbol name.

     export_proto_np    Marks a symbol to be exported without adding PREFIX.

     iexport_proto      Marks a function to be exported, but with the

                        understanding that it can be used inside as well.

     iexport_data_proto Similarly, marks a data symbol to be exported.

                        Unfortunately, some systems can't play the hidden

                        symbol renaming trick on data symbols, thanks to

                        the horribleness of COPY relocations.

   If iexport_proto or iexport_data_proto is used, you must also use

   iexport or iexport_data after the *definition* of the symbol.  */

#if defined(HAVE_ATTRIBUTE_VISIBILITY)

# define internal_proto(x) \

        sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))

#else

# define internal_proto(x)      sym_rename(x, IPREFIX(x))

#endif

#if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)

# define export_proto(x)        sym_rename(x, PREFIX(x))

# define export_proto_np(x)     extern char swallow_semicolon

# define iexport_proto(x)       internal_proto(x)

# define iexport(x)             iexport1(x, IPREFIX(x))

# define iexport1(x,y)          iexport2(x,y)

# define iexport2(x,y) \

        extern __typeof(x) PREFIX(x) __attribute__((__alias__(#y)))

#else

# define export_proto(x)        sym_rename(x, PREFIX(x))

# define export_proto_np(x)     extern char swallow_semicolon

# define iexport_proto(x)       export_proto(x)

# define iexport(x)             extern char swallow_semicolon

#endif

/* TODO: detect the case when we *can* hide the symbol.  */

#define iexport_data_proto(x)   export_proto(x)

#define iexport_data(x)         extern char swallow_semicolon

/* The only reliable way to get the offset of a field in a struct

   in a system independent way is via this macro.  */

#ifndef offsetof

#define offsetof(TYPE, MEMBER)  ((size_t) &((TYPE *) 0)->MEMBER)

#endif

/* The C99 classification macros isfinite, isinf, isnan, isnormal

   and signbit are broken or inconsistent on quite a few targets.

   So, we use GCC's builtins instead.

   Another advantage for GCC's builtins for these type-generic macros

   is that it handles floating-point types that the system headers

   may not support (like __float128).  */

#undef isnan

#define isnan(x) __builtin_isnan(x)

#undef isfinite

#define isfinite(x) __builtin_isfinite(x)

#undef isinf

#define isinf(x) __builtin_isinf(x)

#undef isnormal

#define isnormal(x) __builtin_isnormal(x)

#undef signbit

#define signbit(x) __builtin_signbit(x)

/* TODO: find the C99 version of these an move into above ifdef.  */

#define REALPART(z) (__real__(z))

#define IMAGPART(z) (__imag__(z))

#define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}

#include "kinds.h"

/* Define the type used for the current record number for large file I/O.

   The size must be consistent with the size defined on the compiler side.  */

#ifdef HAVE_GFC_INTEGER_8

typedef GFC_INTEGER_8 GFC_IO_INT;

#else

#ifdef HAVE_GFC_INTEGER_4

typedef GFC_INTEGER_4 GFC_IO_INT;

#else

#error "GFC_INTEGER_4 should be available for the library to compile".

#endif

#endif

/* The following two definitions must be consistent with the types used

   by the compiler.  */

/* The type used of array indices, amongst other things.  */

typedef ptrdiff_t index_type;

/* The type used for the lengths of character variables.  */

typedef GFC_INTEGER_4 gfc_charlen_type;

/* Definitions of CHARACTER data types:

     - CHARACTER(KIND=1) corresponds to the C char type,

     - CHARACTER(KIND=4) corresponds to an unsigned 32-bit integer.  */

typedef GFC_UINTEGER_4 gfc_char4_t;

/* Byte size of character kinds.  For the kinds currently supported, it's

   simply equal to the kind parameter itself.  */

#define GFC_SIZE_OF_CHAR_KIND(kind) (kind)

/* This will be 0 on little-endian machines and one on big-endian machines.  */

extern int big_endian;

internal_proto(big_endian);

#define GFOR_POINTER_TO_L1(p, kind) \

  (big_endian * (kind - 1) + (GFC_LOGICAL_1 *)(p))

#define GFC_INTEGER_1_HUGE \

  (GFC_INTEGER_1)((((GFC_UINTEGER_1)1) << 7) - 1)

#define GFC_INTEGER_2_HUGE \

  (GFC_INTEGER_2)((((GFC_UINTEGER_2)1) << 15) - 1)

#define GFC_INTEGER_4_HUGE \

  (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)

#define GFC_INTEGER_8_HUGE \

  (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)

#ifdef HAVE_GFC_INTEGER_16

#define GFC_INTEGER_16_HUGE \

  (GFC_INTEGER_16)((((GFC_UINTEGER_16)1) << 127) - 1)

#endif

/* M{IN,AX}{LOC,VAL} need also infinities and NaNs if supported.  */

#ifdef __FLT_HAS_INFINITY__

# define GFC_REAL_4_INFINITY __builtin_inff ()

#endif

#ifdef __DBL_HAS_INFINITY__

# define GFC_REAL_8_INFINITY __builtin_inf ()

#endif

#ifdef __LDBL_HAS_INFINITY__

# ifdef HAVE_GFC_REAL_10

#  define GFC_REAL_10_INFINITY __builtin_infl ()

# endif

# ifdef HAVE_GFC_REAL_16

#  ifdef GFC_REAL_16_IS_LONG_DOUBLE

#   define GFC_REAL_16_INFINITY __builtin_infl ()

#  else

#   define GFC_REAL_16_INFINITY __builtin_infq ()

#  endif

# endif

#endif

#ifdef __FLT_HAS_QUIET_NAN__

# define GFC_REAL_4_QUIET_NAN __builtin_nanf ("")

#endif

#ifdef __DBL_HAS_QUIET_NAN__

# define GFC_REAL_8_QUIET_NAN __builtin_nan ("")

#endif

#ifdef __LDBL_HAS_QUIET_NAN__

# ifdef HAVE_GFC_REAL_10

#  define GFC_REAL_10_QUIET_NAN __builtin_nanl ("")

# endif

# ifdef HAVE_GFC_REAL_16

#  ifdef GFC_REAL_16_IS_LONG_DOUBLE

#   define GFC_REAL_16_QUIET_NAN __builtin_nanl ("")

#  else

#   define GFC_REAL_16_QUIET_NAN nanq ("")

#  endif

# endif

#endif

typedef struct descriptor_dimension

{

  index_type _stride;

  index_type _lbound;

  index_type _ubound;

}

descriptor_dimension;

#define GFC_ARRAY_DESCRIPTOR(r, type) \

struct {\

  type *data;\

  size_t offset;\

  index_type dtype;\

  descriptor_dimension dim[r];\

}

/* Commonly used array descriptor types.  */

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_1) gfc_array_i1;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_2) gfc_array_i2;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;

#ifdef HAVE_GFC_INTEGER_16

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_16) gfc_array_i16;

#endif

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;

#ifdef HAVE_GFC_REAL_10

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_10) gfc_array_r10;

#endif

#ifdef HAVE_GFC_REAL_16

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_16) gfc_array_r16;

#endif

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;

#ifdef HAVE_GFC_COMPLEX_10

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_10) gfc_array_c10;

#endif

#ifdef HAVE_GFC_COMPLEX_16

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_16) gfc_array_c16;

#endif

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_1) gfc_array_l1;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_2) gfc_array_l2;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;

#ifdef HAVE_GFC_LOGICAL_16

typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_16) gfc_array_l16;

#endif

#define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)

#define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \

                                   >> GFC_DTYPE_TYPE_SHIFT)

#define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)

#define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)

#define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)

#define GFC_DIMENSION_LBOUND(dim) ((dim)._lbound)

#define GFC_DIMENSION_UBOUND(dim) ((dim)._ubound)

#define GFC_DIMENSION_STRIDE(dim) ((dim)._stride)

#define GFC_DIMENSION_EXTENT(dim) ((dim)._ubound + 1 - (dim)._lbound)

#define GFC_DIMENSION_SET(dim,lb,ub,str) \

  do \

    { \

      (dim)._lbound = lb;                       \

      (dim)._ubound = ub;                       \

      (dim)._stride = str;                      \

    } while (0)

#define GFC_DESCRIPTOR_LBOUND(desc,i) ((desc)->dim[i]._lbound)

#define GFC_DESCRIPTOR_UBOUND(desc,i) ((desc)->dim[i]._ubound)

#define GFC_DESCRIPTOR_EXTENT(desc,i) ((desc)->dim[i]._ubound + 1 \

                                      - (desc)->dim[i]._lbound)

#define GFC_DESCRIPTOR_EXTENT_BYTES(desc,i) \

  (GFC_DESCRIPTOR_EXTENT(desc,i) * GFC_DESCRIPTOR_SIZE(desc))

#define GFC_DESCRIPTOR_STRIDE(desc,i) ((desc)->dim[i]._stride)

#define GFC_DESCRIPTOR_STRIDE_BYTES(desc,i) \

  (GFC_DESCRIPTOR_STRIDE(desc,i) * GFC_DESCRIPTOR_SIZE(desc))

/* Macros to get both the size and the type with a single masking operation  */

#define GFC_DTYPE_SIZE_MASK \

  ((~((index_type) 0) >> GFC_DTYPE_SIZE_SHIFT) << GFC_DTYPE_SIZE_SHIFT)

#define GFC_DTYPE_TYPE_SIZE_MASK (GFC_DTYPE_SIZE_MASK | GFC_DTYPE_TYPE_MASK)

#define GFC_DTYPE_TYPE_SIZE(desc) ((desc)->dtype & GFC_DTYPE_TYPE_SIZE_MASK)

#define GFC_DTYPE_INTEGER_1 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_INTEGER_2 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_INTEGER_4 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_INTEGER_8 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))

#ifdef HAVE_GFC_INTEGER_16

#define GFC_DTYPE_INTEGER_16 ((BT_INTEGER << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))

#endif

#define GFC_DTYPE_LOGICAL_1 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_LOGICAL_1) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_LOGICAL_2 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_LOGICAL_2) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_LOGICAL_4 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_LOGICAL_4) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_LOGICAL_8 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_LOGICAL_8) << GFC_DTYPE_SIZE_SHIFT))

#ifdef HAVE_GFC_LOGICAL_16

#define GFC_DTYPE_LOGICAL_16 ((BT_LOGICAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_LOGICAL_16) << GFC_DTYPE_SIZE_SHIFT))

#endif

#define GFC_DTYPE_REAL_4 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_REAL_4) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_REAL_8 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_REAL_8) << GFC_DTYPE_SIZE_SHIFT))

#ifdef HAVE_GFC_REAL_10

#define GFC_DTYPE_REAL_10  ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_REAL_10) << GFC_DTYPE_SIZE_SHIFT))

#endif

#ifdef HAVE_GFC_REAL_16

#define GFC_DTYPE_REAL_16 ((BT_REAL << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_REAL_16) << GFC_DTYPE_SIZE_SHIFT))

#endif

#define GFC_DTYPE_COMPLEX_4 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_COMPLEX_4) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_COMPLEX_8 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_COMPLEX_8) << GFC_DTYPE_SIZE_SHIFT))

#ifdef HAVE_GFC_COMPLEX_10

#define GFC_DTYPE_COMPLEX_10 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_COMPLEX_10) << GFC_DTYPE_SIZE_SHIFT))

#endif

#ifdef HAVE_GFC_COMPLEX_16

#define GFC_DTYPE_COMPLEX_16 ((BT_COMPLEX << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_COMPLEX_16) << GFC_DTYPE_SIZE_SHIFT))

#endif

#define GFC_DTYPE_DERIVED_1 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_1) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_DERIVED_2 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_2) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_DERIVED_4 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_4) << GFC_DTYPE_SIZE_SHIFT))

#define GFC_DTYPE_DERIVED_8 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_8) << GFC_DTYPE_SIZE_SHIFT))

#ifdef HAVE_GFC_INTEGER_16

#define GFC_DTYPE_DERIVED_16 ((BT_DERIVED << GFC_DTYPE_TYPE_SHIFT) \

   | (sizeof(GFC_INTEGER_16) << GFC_DTYPE_SIZE_SHIFT))

#endif

/* Macros to determine the alignment of pointers.  */

#define GFC_UNALIGNED_2(x) (((uintptr_t)(x)) & \

                            (__alignof__(GFC_INTEGER_2) - 1))

#define GFC_UNALIGNED_4(x) (((uintptr_t)(x)) & \

                            (__alignof__(GFC_INTEGER_4) - 1))

#define GFC_UNALIGNED_8(x) (((uintptr_t)(x)) & \

                            (__alignof__(GFC_INTEGER_8) - 1))

#ifdef HAVE_GFC_INTEGER_16

#define GFC_UNALIGNED_16(x) (((uintptr_t)(x)) & \

                             (__alignof__(GFC_INTEGER_16) - 1))

#endif

#define GFC_UNALIGNED_C4(x) (((uintptr_t)(x)) & \

                             (__alignof__(GFC_COMPLEX_4) - 1))

#define GFC_UNALIGNED_C8(x) (((uintptr_t)(x)) & \

                             (__alignof__(GFC_COMPLEX_8) - 1))

/* Runtime library include.  */

#define stringize(x) expand_macro(x)

#define expand_macro(x) # x

/* Runtime options structure.  */

typedef struct

{

  int stdin_unit, stdout_unit, stderr_unit, optional_plus;

  int locus;

  int separator_len;

  const char *separator;

  int all_unbuffered, unbuffered_preconnected, default_recl;

  int fpe, backtrace;

}

options_t;

extern options_t options;

internal_proto(options);

extern void backtrace_handler (int);

internal_proto(backtrace_handler);

/* Compile-time options that will influence the library.  */

typedef struct

{

  int warn_std;

  int allow_std;

  int pedantic;

  int convert;

  int backtrace;

  int sign_zero;

  size_t record_marker;

  int max_subrecord_length;

  int bounds_check;

  int range_check;

}

compile_options_t;

extern compile_options_t compile_options;

internal_proto(compile_options);

extern void init_compile_options (void);

internal_proto(init_compile_options);

#define GFC_MAX_SUBRECORD_LENGTH 2147483639   /* 2**31 - 9 */

/* Structure for statement options.  */

typedef struct

{

  const char *name;

  int value;

}

st_option;

/* This is returned by notification_std to know if, given the flags

   that were given (-std=, -pedantic) we should issue an error, a warning

   or nothing.  */

typedef enum

{ NOTIFICATION_SILENT, NOTIFICATION_WARNING, NOTIFICATION_ERROR }

notification;

/* This is returned by notify_std and several io functions.  */

typedef enum

{ SUCCESS = 1, FAILURE }

try;

/* The filename and line number don't go inside the globals structure.

   They are set by the rest of the program and must be linked to.  */

/* Location of the current library call (optional).  */

extern unsigned line;

iexport_data_proto(line);

extern char *filename;

iexport_data_proto(filename);

/* Avoid conflicting prototypes of alloca() in system headers by using

   GCC's builtin alloca().  */

#define gfc_alloca(x)  __builtin_alloca(x)

/* Directory for creating temporary files.  Only used when none of the

   following environment variables exist: GFORTRAN_TMPDIR, TMP and TEMP.  */

#define DEFAULT_TEMPDIR "/tmp"

/* The default value of record length for preconnected units is defined

   here. This value can be overriden by an environment variable.

   Default value is 1 Gb.  */

#define DEFAULT_RECL 1073741824

#define CHARACTER2(name) \

              gfc_charlen_type name ## _len; \

              char * name

typedef struct st_parameter_common

{

  GFC_INTEGER_4 flags;

  GFC_INTEGER_4 unit;

  const char *filename;

  GFC_INTEGER_4 line;

  CHARACTER2 (iomsg);

  GFC_INTEGER_4 *iostat;

}

st_parameter_common;

#undef CHARACTER2

#define IOPARM_LIBRETURN_MASK           (3 << 0)

#define IOPARM_LIBRETURN_OK             (0 << 0)

#define IOPARM_LIBRETURN_ERROR          (1 << 0)

#define IOPARM_LIBRETURN_END            (2 << 0)

#define IOPARM_LIBRETURN_EOR            (3 << 0)

#define IOPARM_ERR                      (1 << 2)

#define IOPARM_END                      (1 << 3)

#define IOPARM_EOR                      (1 << 4)

#define IOPARM_HAS_IOSTAT               (1 << 5)

#define IOPARM_HAS_IOMSG                (1 << 6)

#define IOPARM_COMMON_MASK              ((1 << 7) - 1)

#define IOPARM_OPEN_HAS_RECL_IN         (1 << 7)

#define IOPARM_OPEN_HAS_FILE            (1 << 8)

#define IOPARM_OPEN_HAS_STATUS          (1 << 9)

#define IOPARM_OPEN_HAS_ACCESS          (1 << 10)

#define IOPARM_OPEN_HAS_FORM            (1 << 11)

#define IOPARM_OPEN_HAS_BLANK           (1 << 12)

#define IOPARM_OPEN_HAS_POSITION        (1 << 13)

#define IOPARM_OPEN_HAS_ACTION          (1 << 14)

#define IOPARM_OPEN_HAS_DELIM           (1 << 15)

#define IOPARM_OPEN_HAS_PAD             (1 << 16)

#define IOPARM_OPEN_HAS_CONVERT         (1 << 17)

#define IOPARM_OPEN_HAS_DECIMAL         (1 << 18)

#define IOPARM_OPEN_HAS_ENCODING        (1 << 19)

#define IOPARM_OPEN_HAS_ROUND           (1 << 20)

#define IOPARM_OPEN_HAS_SIGN            (1 << 21)

#define IOPARM_OPEN_HAS_ASYNCHRONOUS    (1 << 22)

#define IOPARM_OPEN_HAS_NEWUNIT         (1 << 23)

/* library start function and end macro.  These can be expanded if needed

   in the future.  cmp is st_parameter_common *cmp  */

extern void library_start (st_parameter_common *);

internal_proto(library_start);

#define library_end()

/* main.c */

extern void stupid_function_name_for_static_linking (void);

internal_proto(stupid_function_name_for_static_linking);

extern void set_args (int, char **);

iexport_proto(set_args);

extern void get_args (int *, char ***);

internal_proto(get_args);

extern void store_exe_path (const char *);

export_proto(store_exe_path);

extern char * full_exe_path (void);

internal_proto(full_exe_path);

extern void find_addr2line (void);

internal_proto(find_addr2line);

/* backtrace.c */

extern void show_backtrace (void);

internal_proto(show_backtrace);

/* error.c */

#if defined(HAVE_GFC_REAL_16)

#define GFC_LARGEST_BUF (sizeof (GFC_REAL_16))

#elif defined(HAVE_GFC_INTEGER_16)

#define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))

#elif defined(HAVE_GFC_REAL_10)

#define GFC_LARGEST_BUF (sizeof (GFC_REAL_10))

#else

#define GFC_LARGEST_BUF (sizeof (GFC_INTEGER_LARGEST))

#endif

#define GFC_ITOA_BUF_SIZE (sizeof (GFC_INTEGER_LARGEST) * 3 + 2)

#define GFC_XTOA_BUF_SIZE (GFC_LARGEST_BUF * 2 + 1)

#define GFC_OTOA_BUF_SIZE (GFC_LARGEST_BUF * 3 + 1)

#define GFC_BTOA_BUF_SIZE (GFC_LARGEST_BUF * 8 + 1)

extern void sys_abort (void) __attribute__ ((noreturn));

internal_proto(sys_abort);

extern ssize_t estr_write (const char *);

internal_proto(estr_write);

extern int st_vprintf (const char *, va_list);

internal_proto(st_vprintf);

extern int st_printf (const char *, ...)

  __attribute__((format (gfc_printf, 1, 2)));

internal_proto(st_printf);

extern const char *gfc_xtoa (GFC_UINTEGER_LARGEST, char *, size_t);

internal_proto(gfc_xtoa);

extern void os_error (const char *) __attribute__ ((noreturn));

iexport_proto(os_error);

extern void show_locus (st_parameter_common *);

internal_proto(show_locus);

extern void runtime_error (const char *, ...)

     __attribute__ ((noreturn, format (gfc_printf, 1, 2)));

iexport_proto(runtime_error);

extern void runtime_error_at (const char *, const char *, ...)

     __attribute__ ((noreturn, format (gfc_printf, 2, 3)));

iexport_proto(runtime_error_at);

extern void runtime_warning_at (const char *, const char *, ...)

     __attribute__ ((format (gfc_printf, 2, 3)));

iexport_proto(runtime_warning_at);

extern void internal_error (st_parameter_common *, const char *)

  __attribute__ ((noreturn));

internal_proto(internal_error);

extern const char *translate_error (int);

internal_proto(translate_error);

extern void generate_error (st_parameter_common *, int, const char *);

iexport_proto(generate_error);

extern void generate_warning (st_parameter_common *, const char *);

internal_proto(generate_warning);

extern try notify_std (st_parameter_common *, int, const char *);

internal_proto(notify_std);

extern notification notification_std(int);

internal_proto(notification_std);