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Annotation of embedaddon/libiconv/srclib/limits.in.h, revision 1.1

1.1     ! misho       1: /* A GNU-like <limits.h>.
        !             2: 
        !             3:    Copyright 2016-2019 Free Software Foundation, Inc.
        !             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
        !            16:    along with this program; if not, see <https://www.gnu.org/licenses/>.  */
        !            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: 
        !            31: #ifndef LLONG_MIN
        !            32: # if defined LONG_LONG_MIN /* HP-UX 11.31 */
        !            33: #  define LLONG_MIN LONG_LONG_MIN
        !            34: # elif defined LONGLONG_MIN /* IRIX 6.5 */
        !            35: #  define LLONG_MIN LONGLONG_MIN
        !            36: # elif defined __GNUC__
        !            37: #  define LLONG_MIN (- __LONG_LONG_MAX__ - 1LL)
        !            38: # endif
        !            39: #endif
        !            40: #ifndef LLONG_MAX
        !            41: # if defined LONG_LONG_MAX /* HP-UX 11.31 */
        !            42: #  define LLONG_MAX LONG_LONG_MAX
        !            43: # elif defined LONGLONG_MAX /* IRIX 6.5 */
        !            44: #  define LLONG_MAX LONGLONG_MAX
        !            45: # elif defined __GNUC__
        !            46: #  define LLONG_MAX __LONG_LONG_MAX__
        !            47: # endif
        !            48: #endif
        !            49: #ifndef ULLONG_MAX
        !            50: # if defined ULONG_LONG_MAX /* HP-UX 11.31 */
        !            51: #  define ULLONG_MAX ULONG_LONG_MAX
        !            52: # elif defined ULONGLONG_MAX /* IRIX 6.5 */
        !            53: #  define ULLONG_MAX ULONGLONG_MAX
        !            54: # elif defined __GNUC__
        !            55: #  define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1ULL)
        !            56: # endif
        !            57: #endif
        !            58: 
        !            59: /* The number of usable bits in an unsigned or signed integer type
        !            60:    with minimum value MIN and maximum value MAX, as an int expression
        !            61:    suitable in #if.  Cover all known practical hosts.  This
        !            62:    implementation exploits the fact that MAX is 1 less than a power of
        !            63:    2, and merely counts the number of 1 bits in MAX; "COBn" means
        !            64:    "count the number of 1 bits in the low-order n bits").  */
        !            65: #define _GL_INTEGER_WIDTH(min, max) (((min) < 0) + _GL_COB128 (max))
        !            66: #define _GL_COB128(n) (_GL_COB64 ((n) >> 31 >> 31 >> 2) + _GL_COB64 (n))
        !            67: #define _GL_COB64(n) (_GL_COB32 ((n) >> 31 >> 1) + _GL_COB32 (n))
        !            68: #define _GL_COB32(n) (_GL_COB16 ((n) >> 16) + _GL_COB16 (n))
        !            69: #define _GL_COB16(n) (_GL_COB8 ((n) >> 8) + _GL_COB8 (n))
        !            70: #define _GL_COB8(n) (_GL_COB4 ((n) >> 4) + _GL_COB4 (n))
        !            71: #define _GL_COB4(n) (!!((n) & 8) + !!((n) & 4) + !!((n) & 2) + !!((n) & 1))
        !            72: 
        !            73: #ifndef WORD_BIT
        !            74: /* Assume 'int' is 32 bits wide.  */
        !            75: # define WORD_BIT 32
        !            76: #endif
        !            77: #ifndef LONG_BIT
        !            78: /* Assume 'long' is 32 or 64 bits wide.  */
        !            79: # if LONG_MAX == INT_MAX
        !            80: #  define LONG_BIT 32
        !            81: # else
        !            82: #  define LONG_BIT 64
        !            83: # endif
        !            84: #endif
        !            85: 
        !            86: /* Macros specified by ISO/IEC TS 18661-1:2014.  */
        !            87: 
        !            88: #if (! defined ULLONG_WIDTH                                             \
        !            89:      && (defined _GNU_SOURCE || defined __STDC_WANT_IEC_60559_BFP_EXT__))
        !            90: # define CHAR_WIDTH _GL_INTEGER_WIDTH (CHAR_MIN, CHAR_MAX)
        !            91: # define SCHAR_WIDTH _GL_INTEGER_WIDTH (SCHAR_MIN, SCHAR_MAX)
        !            92: # define UCHAR_WIDTH _GL_INTEGER_WIDTH (0, UCHAR_MAX)
        !            93: # define SHRT_WIDTH _GL_INTEGER_WIDTH (SHRT_MIN, SHRT_MAX)
        !            94: # define USHRT_WIDTH _GL_INTEGER_WIDTH (0, USHRT_MAX)
        !            95: # define INT_WIDTH _GL_INTEGER_WIDTH (INT_MIN, INT_MAX)
        !            96: # define UINT_WIDTH _GL_INTEGER_WIDTH (0, UINT_MAX)
        !            97: # define LONG_WIDTH _GL_INTEGER_WIDTH (LONG_MIN, LONG_MAX)
        !            98: # define ULONG_WIDTH _GL_INTEGER_WIDTH (0, ULONG_MAX)
        !            99: # define LLONG_WIDTH _GL_INTEGER_WIDTH (LLONG_MIN, LLONG_MAX)
        !           100: # define ULLONG_WIDTH _GL_INTEGER_WIDTH (0, ULLONG_MAX)
        !           101: #endif /* !ULLONG_WIDTH && (_GNU_SOURCE || __STDC_WANT_IEC_60559_BFP_EXT__) */
        !           102: 
        !           103: #endif /* _@GUARD_PREFIX@_LIMITS_H */
        !           104: #endif /* _@GUARD_PREFIX@_LIMITS_H */