1 /* Header file to the Fortran front-end and runtime library 2 Copyright (C) 2007-2016 Free Software Foundation, Inc. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it under 7 the terms of the GNU General Public License as published by the Free 8 Software Foundation; either version 3, or (at your option) any later 9 version. 10 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20 21 /* Flags to specify which standard/extension contains a feature. 22 Note that no features were obsoleted nor deleted in F2003. 23 Please remember to keep those definitions in sync with 24 gfortran.texi. */ 25 /* For now, use F2015 = GFC_STD_GNU. */ 26 #define GFC_STD_F2015 (1<<5) /* PLACEHOLDER for Fortran 2015. */ 27 #define GFC_STD_F2008_TS (1<<9) /* POST-F2008 technical reports. */ 28 #define GFC_STD_F2008_OBS (1<<8) /* Obsolescent in F2008. */ 29 #define GFC_STD_F2008 (1<<7) /* New in F2008. */ 30 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */ 31 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */ 32 #define GFC_STD_F2003 (1<<4) /* New in F2003. */ 33 #define GFC_STD_F95 (1<<3) /* New in F95. */ 34 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */ 35 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */ 36 #define GFC_STD_F77 (1<<0) /* Included in F77, but not deleted or 37 obsolescent in later standards. */ 38 39 40 /* Bitmasks for the various FPE that can be enabled. These need to be straight integers 41 e.g., 8 instead of (1<<3), because they will be included in Fortran source. */ 42 #define GFC_FPE_INVALID 1 43 #define GFC_FPE_DENORMAL 2 44 #define GFC_FPE_ZERO 4 45 #define GFC_FPE_OVERFLOW 8 46 #define GFC_FPE_UNDERFLOW 16 47 #define GFC_FPE_INEXACT 32 48 49 /* Defines for floating-point rounding modes. */ 50 #define GFC_FPE_DOWNWARD 1 51 #define GFC_FPE_TONEAREST 2 52 #define GFC_FPE_TOWARDZERO 3 53 #define GFC_FPE_UPWARD 4 54 55 /* Size of the buffer required to store FPU state for any target. 56 In particular, this has to be larger than fenv_t on all glibc targets. 57 Currently, the winner is x86_64 with 32 bytes. */ 58 #define GFC_FPE_STATE_BUFFER_SIZE 32 59 60 /* Bitmasks for the various runtime checks that can be enabled. */ 61 #define GFC_RTCHECK_BOUNDS (1<<0) 62 #define GFC_RTCHECK_ARRAY_TEMPS (1<<1) 63 #define GFC_RTCHECK_RECURSION (1<<2) 64 #define GFC_RTCHECK_DO (1<<3) 65 #define GFC_RTCHECK_POINTER (1<<4) 66 #define GFC_RTCHECK_MEM (1<<5) 67 #define GFC_RTCHECK_ALL (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \ 68 | GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \ 69 | GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM) 70 71 /* Special unit numbers used to convey certain conditions. Numbers -3 72 thru -9 available. NEWUNIT values start at -10. */ 73 #define GFC_INTERNAL_UNIT -1 74 #define GFC_INVALID_UNIT -2 75 76 /* Possible values for the CONVERT I/O specifier. */ 77 /* Keep in sync with GFC_FLAG_CONVERT_* in gcc/flags.h. */ 78 typedef enum 79 { 80 GFC_CONVERT_NONE = -1, 81 GFC_CONVERT_NATIVE = 0, 82 GFC_CONVERT_SWAP, 83 GFC_CONVERT_BIG, 84 GFC_CONVERT_LITTLE 85 } 86 unit_convert; 87 88 89 /* Runtime errors. */ 90 typedef enum 91 { 92 LIBERROR_FIRST = -3, /* Marker for the first error. */ 93 LIBERROR_EOR = -2, /* End of record, must be negative. */ 94 LIBERROR_END = -1, /* End of file, must be negative. */ 95 LIBERROR_OK = 0, /* Indicates success, must be zero. */ 96 LIBERROR_OS = 5000, /* OS error, more info in errno. */ 97 LIBERROR_OPTION_CONFLICT, 98 LIBERROR_BAD_OPTION, 99 LIBERROR_MISSING_OPTION, 100 LIBERROR_ALREADY_OPEN, 101 LIBERROR_BAD_UNIT, 102 LIBERROR_FORMAT, 103 LIBERROR_BAD_ACTION, 104 LIBERROR_ENDFILE, 105 LIBERROR_BAD_US, 106 LIBERROR_READ_VALUE, 107 LIBERROR_READ_OVERFLOW, 108 LIBERROR_INTERNAL, 109 LIBERROR_INTERNAL_UNIT, 110 LIBERROR_ALLOCATION, 111 LIBERROR_DIRECT_EOR, 112 LIBERROR_SHORT_RECORD, 113 LIBERROR_CORRUPT_FILE, 114 LIBERROR_INQUIRE_INTERNAL_UNIT, /* Must be different from STAT_STOPPED_IMAGE. */ 115 LIBERROR_LAST /* Not a real error, the last error # + 1. */ 116 } 117 libgfortran_error_codes; 118 119 /* Must kept in sync with libgfortrancaf.h. */ 120 typedef enum 121 { 122 GFC_STAT_UNLOCKED = 0, 123 GFC_STAT_LOCKED, 124 GFC_STAT_LOCKED_OTHER_IMAGE, 125 GFC_STAT_STOPPED_IMAGE = 6000, /* See LIBERROR_INQUIRE_INTERNAL_UNIT above. */ 126 GFC_STAT_FAILED_IMAGE 127 } 128 libgfortran_stat_codes; 129 130 typedef enum 131 { 132 GFC_CAF_ATOMIC_ADD = 1, 133 GFC_CAF_ATOMIC_AND, 134 GFC_CAF_ATOMIC_OR, 135 GFC_CAF_ATOMIC_XOR 136 } libcaf_atomic_codes; 137 138 139 /* For CO_REDUCE. */ 140 #define GFC_CAF_BYREF (1<<0) 141 #define GFC_CAF_HIDDENLEN (1<<1) 142 #define GFC_CAF_ARG_VALUE (1<<2) 143 #define GFC_CAF_ARG_DESC (1<<3) 144 145 146 /* Default unit number for preconnected standard input and output. */ 147 #define GFC_STDIN_UNIT_NUMBER 5 148 #define GFC_STDOUT_UNIT_NUMBER 6 149 #define GFC_STDERR_UNIT_NUMBER 0 150 151 152 /* FIXME: Increase to 15 for Fortran 2008. Also needs changes to 153 GFC_DTYPE_RANK_MASK. See PR 36825. */ 154 #define GFC_MAX_DIMENSIONS 7 155 156 #define GFC_DTYPE_RANK_MASK 0x07 157 #define GFC_DTYPE_TYPE_SHIFT 3 158 #define GFC_DTYPE_TYPE_MASK 0x38 159 #define GFC_DTYPE_SIZE_SHIFT 6 160 161 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer 162 can take any arg with the pointer attribute as a param. These are also 163 used in the run-time library for IO. */ 164 typedef enum 165 { BT_UNKNOWN = 0, BT_INTEGER, BT_LOGICAL, BT_REAL, BT_COMPLEX, 166 BT_DERIVED, BT_CHARACTER, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID, 167 BT_ASSUMED, BT_UNION 168 } 169 bt; 170