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/* Header file to the Fortran front-end and runtime library

   Copyright (C) 2007, 2008, 2009, 2010

   Free Software Foundation, Inc.

This file is part of GCC.

GCC 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.

GCC 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.

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

along with GCC; see the file COPYING3.  If not see

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

/* Flags to specify which standard/extension contains a feature.

   Note that no features were obsoleted nor deleted in F2003.

   Please remember to keep those definitions in sync with

   gfortran.texi.  */

#define GFC_STD_F2008   (1<<7)  /* New in F2008.  */

#define GFC_STD_LEGACY  (1<<6)  /* Backward compatibility.  */

#define GFC_STD_GNU     (1<<5)  /* GNU Fortran extension.  */

#define GFC_STD_F2003   (1<<4)  /* New in F2003.  */

#define GFC_STD_F95     (1<<3)  /* New in F95.  */

#define GFC_STD_F95_DEL (1<<2)  /* Deleted in F95.  */

#define GFC_STD_F95_OBS (1<<1)  /* Obsolescent in F95.  */

#define GFC_STD_F77     (1<<0)  /* Included in F77, but not deleted or

                                   obsolescent in later standards.  */

/* Bitmasks for the various FPE that can be enabled.  */

#define GFC_FPE_INVALID    (1<<0)

#define GFC_FPE_DENORMAL   (1<<1)

#define GFC_FPE_ZERO       (1<<2)

#define GFC_FPE_OVERFLOW   (1<<3)

#define GFC_FPE_UNDERFLOW  (1<<4)

#define GFC_FPE_PRECISION  (1<<5)

/* Bitmasks for the various runtime checks that can be enabled.  */

#define GFC_RTCHECK_BOUNDS      (1<<0)

#define GFC_RTCHECK_ARRAY_TEMPS (1<<1)

#define GFC_RTCHECK_RECURSION   (1<<2)

#define GFC_RTCHECK_DO          (1<<3)

#define GFC_RTCHECK_POINTER     (1<<4)

#define GFC_RTCHECK_MEM         (1<<5)

#define GFC_RTCHECK_ALL        (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \

                                | GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \

                                | GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM)

/* Possible values for the CONVERT I/O specifier.  */

typedef enum

{

  GFC_CONVERT_NONE = -1,

  GFC_CONVERT_NATIVE = 0,

  GFC_CONVERT_SWAP,

  GFC_CONVERT_BIG,

  GFC_CONVERT_LITTLE

}

unit_convert;

/* Runtime errors.  */

typedef enum

{

  LIBERROR_FIRST = -3,          /* Marker for the first error.  */

  LIBERROR_EOR = -2,            /* End of record, must be negative.  */

  LIBERROR_END = -1,            /* End of file, must be negative.  */

  LIBERROR_OK = 0,               /* Indicates success, must be zero.  */

  LIBERROR_OS = 5000,           /* OS error, more info in errno.  */

  LIBERROR_OPTION_CONFLICT,

  LIBERROR_BAD_OPTION,

  LIBERROR_MISSING_OPTION,

  LIBERROR_ALREADY_OPEN,

  LIBERROR_BAD_UNIT,

  LIBERROR_FORMAT,

  LIBERROR_BAD_ACTION,

  LIBERROR_ENDFILE,

  LIBERROR_BAD_US,

  LIBERROR_READ_VALUE,

  LIBERROR_READ_OVERFLOW,

  LIBERROR_INTERNAL,

  LIBERROR_INTERNAL_UNIT,

  LIBERROR_ALLOCATION,

  LIBERROR_DIRECT_EOR,

  LIBERROR_SHORT_RECORD,

  LIBERROR_CORRUPT_FILE,

  LIBERROR_LAST                 /* Not a real error, the last error # + 1.  */

}

libgfortran_error_codes;

/* Default unit number for preconnected standard input and output.  */

#define GFC_STDIN_UNIT_NUMBER 5

#define GFC_STDOUT_UNIT_NUMBER 6

#define GFC_STDERR_UNIT_NUMBER 0

/* FIXME: Increase to 15 for Fortran 2008. Also needs changes to

   GFC_DTYPE_RANK_MASK. See PR 36825.  */

#define GFC_MAX_DIMENSIONS 7

#define GFC_DTYPE_RANK_MASK 0x07

#define GFC_DTYPE_TYPE_SHIFT 3

#define GFC_DTYPE_TYPE_MASK 0x38

#define GFC_DTYPE_SIZE_SHIFT 6

typedef enum

{

  GFC_DTYPE_UNKNOWN = 0,

  GFC_DTYPE_INTEGER,

  /* TODO: recognize logical types.  */

  GFC_DTYPE_LOGICAL,

  GFC_DTYPE_REAL,

  GFC_DTYPE_COMPLEX,

  GFC_DTYPE_DERIVED,

  GFC_DTYPE_CHARACTER

}

dtype;