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libiconv 1.16

    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 */