1 /* Header file to the Fortran front-end and runtime library 2 Copyright (C) 2007-2019 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 #define GFC_STD_F2018_DEL (1<<11) /* Deleted in F2018. */ 26 #define GFC_STD_F2018_OBS (1<<10) /* Obsolescent in F2018. */ 27 #define GFC_STD_F2018 (1<<9) /* New in F2018. */ 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 /* Combinations of the above flags that specify which classes of features 40 * are allowed with a certain -std option. */ 41 #define GFC_STD_OPT_F95 (GFC_STD_F77 | GFC_STD_F95 | GFC_STD_F95_OBS \ 42 | GFC_STD_F2008_OBS | GFC_STD_F2018_OBS \ 43 | GFC_STD_F2018_DEL) 44 #define GFC_STD_OPT_F03 (GFC_STD_OPT_F95 | GFC_STD_F2003) 45 #define GFC_STD_OPT_F08 (GFC_STD_OPT_F03 | GFC_STD_F2008) 46 #define GFC_STD_OPT_F18 ((GFC_STD_OPT_F08 | GFC_STD_F2018) \ 47 & (~GFC_STD_F2018_DEL)) 48 49 /* Bitmasks for the various FPE that can be enabled. These need to be straight integers 50 e.g., 8 instead of (1<<3), because they will be included in Fortran source. */ 51 #define GFC_FPE_INVALID 1 52 #define GFC_FPE_DENORMAL 2 53 #define GFC_FPE_ZERO 4 54 #define GFC_FPE_OVERFLOW 8 55 #define GFC_FPE_UNDERFLOW 16 56 #define GFC_FPE_INEXACT 32 57 58 /* Defines for floating-point rounding modes. */ 59 #define GFC_FPE_DOWNWARD 1 60 #define GFC_FPE_TONEAREST 2 61 #define GFC_FPE_TOWARDZERO 3 62 #define GFC_FPE_UPWARD 4 63 64 /* Size of the buffer required to store FPU state for any target. 65 In particular, this has to be larger than fenv_t on all glibc targets. 66 Currently, the winner is x86_64 with 32 bytes. */ 67 #define GFC_FPE_STATE_BUFFER_SIZE 32 68 69 /* Bitmasks for the various runtime checks that can be enabled. */ 70 #define GFC_RTCHECK_BOUNDS (1<<0) 71 #define GFC_RTCHECK_ARRAY_TEMPS (1<<1) 72 #define GFC_RTCHECK_RECURSION (1<<2) 73 #define GFC_RTCHECK_DO (1<<3) 74 #define GFC_RTCHECK_POINTER (1<<4) 75 #define GFC_RTCHECK_MEM (1<<5) 76 #define GFC_RTCHECK_ALL (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \ 77 | GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \ 78 | GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM) 79 80 /* Special unit numbers used to convey certain conditions. Numbers -4 81 thru -9 available. NEWUNIT values start at -10. */ 82 #define GFC_INTERNAL_UNIT -1 /* KIND=1 Internal Unit. */ 83 #define GFC_INTERNAL_UNIT4 -2 /* KIND=4 Internal Unit. */ 84 #define GFC_INVALID_UNIT -3 85 86 /* Possible values for the CONVERT I/O specifier. */ 87 /* Keep in sync with GFC_FLAG_CONVERT_* in gcc/flags.h. */ 88 typedef enum 89 { 90 GFC_CONVERT_NONE = -1, 91 GFC_CONVERT_NATIVE = 0, 92 GFC_CONVERT_SWAP, 93 GFC_CONVERT_BIG, 94 GFC_CONVERT_LITTLE 95 } 96 unit_convert; 97 98 99 /* Runtime errors. */ 100 typedef enum 101 { 102 LIBERROR_FIRST = -3, /* Marker for the first error. */ 103 LIBERROR_EOR = -2, /* End of record, must be negative. */ 104 LIBERROR_END = -1, /* End of file, must be negative. */ 105 LIBERROR_OK = 0, /* Indicates success, must be zero. */ 106 LIBERROR_OS = 5000, /* OS error, more info in errno. */ 107 LIBERROR_OPTION_CONFLICT, 108 LIBERROR_BAD_OPTION, 109 LIBERROR_MISSING_OPTION, 110 LIBERROR_ALREADY_OPEN, 111 LIBERROR_BAD_UNIT, 112 LIBERROR_FORMAT, 113 LIBERROR_BAD_ACTION, 114 LIBERROR_ENDFILE, 115 LIBERROR_BAD_US, 116 LIBERROR_READ_VALUE, 117 LIBERROR_READ_OVERFLOW, 118 LIBERROR_INTERNAL, 119 LIBERROR_INTERNAL_UNIT, 120 LIBERROR_ALLOCATION, 121 LIBERROR_DIRECT_EOR, 122 LIBERROR_SHORT_RECORD, 123 LIBERROR_CORRUPT_FILE, 124 LIBERROR_INQUIRE_INTERNAL_UNIT, /* Must be different from STAT_STOPPED_IMAGE. */ 125 LIBERROR_LAST /* Not a real error, the last error # + 1. */ 126 } 127 libgfortran_error_codes; 128 129 /* Must kept in sync with libgfortran/caf/libcaf.h. */ 130 typedef enum 131 { 132 GFC_STAT_UNLOCKED = 0, 133 GFC_STAT_LOCKED, 134 GFC_STAT_LOCKED_OTHER_IMAGE, 135 GFC_STAT_STOPPED_IMAGE = 6000, /* See LIBERROR_INQUIRE_INTERNAL_UNIT above. */ 136 GFC_STAT_FAILED_IMAGE = 6001 137 } 138 libgfortran_stat_codes; 139 140 typedef enum 141 { 142 GFC_CAF_ATOMIC_ADD = 1, 143 GFC_CAF_ATOMIC_AND, 144 GFC_CAF_ATOMIC_OR, 145 GFC_CAF_ATOMIC_XOR 146 } libcaf_atomic_codes; 147 148 149 /* For CO_REDUCE. */ 150 #define GFC_CAF_BYREF (1<<0) 151 #define GFC_CAF_HIDDENLEN (1<<1) 152 #define GFC_CAF_ARG_VALUE (1<<2) 153 #define GFC_CAF_ARG_DESC (1<<3) 154 155 156 /* Default unit number for preconnected standard input and output. */ 157 #define GFC_STDIN_UNIT_NUMBER 5 158 #define GFC_STDOUT_UNIT_NUMBER 6 159 #define GFC_STDERR_UNIT_NUMBER 0 160 161 /* F2003 onward. For std < F2003, error caught in array.c(gfc_match_array_ref). */ 162 #define GFC_MAX_DIMENSIONS 15 163 164 #define GFC_DTYPE_RANK_MASK 0x0F 165 #define GFC_DTYPE_TYPE_SHIFT 4 166 #define GFC_DTYPE_TYPE_MASK 0x70 167 #define GFC_DTYPE_SIZE_SHIFT 7 168 169 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer 170 can take any arg with the pointer attribute as a param. These are also 171 used in the run-time library for IO. */ 172 typedef enum 173 { BT_UNKNOWN = 0, BT_INTEGER, BT_LOGICAL, BT_REAL, BT_COMPLEX, 174 BT_DERIVED, BT_CHARACTER, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID, 175 BT_ASSUMED, BT_UNION 176 } 177 bt; 178