projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 49e4877c PA |
1 | /* A GNU-like <limits.h>. |
| 2 | ||
| 7a6dbc2f | 3 | Copyright 2016-2018 Free Software Foundation, Inc. |
| 49e4877c PA |
4 | |
| 5 | This program is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU General Public License | |
| 7 | as published by the Free Software Foundation; either version 3, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 7a6dbc2f | 16 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 49e4877c PA |
17 | |
| 18 | #ifndef _@GUARD_PREFIX@_LIMITS_H | |
| 19 | ||
| 20 | #if __GNUC__ >= 3 | |
| 21 | @PRAGMA_SYSTEM_HEADER@ | |
| 22 | #endif | |
| 23 | @PRAGMA_COLUMNS@ | |
| 24 | ||
| 25 | /* The include_next requires a split double-inclusion guard. */ | |
| 26 | #@INCLUDE_NEXT@ @NEXT_LIMITS_H@ | |
| 27 | ||
| 28 | #ifndef _@GUARD_PREFIX@_LIMITS_H | |
| 29 | #define _@GUARD_PREFIX@_LIMITS_H | |
| 30 | ||
| 7a6dbc2f SDJ |
31 | /* For HP-UX 11.31. */ |
| 32 | #if defined LONG_LONG_MIN && !defined LLONG_MIN | |
| 33 | # define LLONG_MIN LONG_LONG_MIN | |
| 34 | #endif | |
| 35 | #if defined LONG_LONG_MAX && !defined LLONG_MAX | |
| 36 | # define LLONG_MAX LONG_LONG_MAX | |
| 37 | #endif | |
| 38 | #if defined ULONG_LONG_MAX && !defined ULLONG_MAX | |
| 39 | # define ULLONG_MAX ULONG_LONG_MAX | |
| 40 | #endif | |
| 41 | ||
| 49e4877c PA |
42 | /* The number of usable bits in an unsigned or signed integer type |
| 43 | with minimum value MIN and maximum value MAX, as an int expression | |
| 44 | suitable in #if. Cover all known practical hosts. This | |
| 45 | implementation exploits the fact that MAX is 1 less than a power of | |
| 46 | 2, and merely counts the number of 1 bits in MAX; "COBn" means | |
| 47 | "count the number of 1 bits in the low-order n bits"). */ | |
| 48 | #define _GL_INTEGER_WIDTH(min, max) (((min) < 0) + _GL_COB128 (max)) | |
| 49 | #define _GL_COB128(n) (_GL_COB64 ((n) >> 31 >> 31 >> 2) + _GL_COB64 (n)) | |
| 50 | #define _GL_COB64(n) (_GL_COB32 ((n) >> 31 >> 1) + _GL_COB32 (n)) | |
| 51 | #define _GL_COB32(n) (_GL_COB16 ((n) >> 16) + _GL_COB16 (n)) | |
| 52 | #define _GL_COB16(n) (_GL_COB8 ((n) >> 8) + _GL_COB8 (n)) | |
| 53 | #define _GL_COB8(n) (_GL_COB4 ((n) >> 4) + _GL_COB4 (n)) | |
| 54 | #define _GL_COB4(n) (!!((n) & 8) + !!((n) & 4) + !!((n) & 2) + !!((n) & 1)) | |
| 55 | ||
| 56 | /* Macros specified by ISO/IEC TS 18661-1:2014. */ | |
| 57 | ||
| 58 | #if (! defined ULLONG_WIDTH \ | |
| 59 | && (defined _GNU_SOURCE || defined __STDC_WANT_IEC_60559_BFP_EXT__)) | |
| 60 | # define CHAR_WIDTH _GL_INTEGER_WIDTH (CHAR_MIN, CHAR_MAX) | |
| 61 | # define SCHAR_WIDTH _GL_INTEGER_WIDTH (SCHAR_MIN, SCHAR_MAX) | |
| 62 | # define UCHAR_WIDTH _GL_INTEGER_WIDTH (0, UCHAR_MAX) | |
| 63 | # define SHRT_WIDTH _GL_INTEGER_WIDTH (SHRT_MIN, SHRT_MAX) | |
| 64 | # define USHRT_WIDTH _GL_INTEGER_WIDTH (0, USHRT_MAX) | |
| 65 | # define INT_WIDTH _GL_INTEGER_WIDTH (INT_MIN, INT_MAX) | |
| 66 | # define UINT_WIDTH _GL_INTEGER_WIDTH (0, UINT_MAX) | |
| 67 | # define LONG_WIDTH _GL_INTEGER_WIDTH (LONG_MIN, LONG_MAX) | |
| 68 | # define ULONG_WIDTH _GL_INTEGER_WIDTH (0, ULONG_MAX) | |
| 69 | # define LLONG_WIDTH _GL_INTEGER_WIDTH (LLONG_MIN, LLONG_MAX) | |
| 70 | # define ULLONG_WIDTH _GL_INTEGER_WIDTH (0, ULLONG_MAX) | |
| 71 | #endif /* !ULLONG_WIDTH && (_GNU_SOURCE || __STDC_WANT_IEC_60559_BFP_EXT__) */ | |
| 72 | ||
| 73 | #endif /* _@GUARD_PREFIX@_LIMITS_H */ | |
| 74 | #endif /* _@GUARD_PREFIX@_LIMITS_H */ |