diff options
Diffstat (limited to 'lib/gl/limits.in.h')
| -rw-r--r-- | lib/gl/limits.in.h | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/lib/gl/limits.in.h b/lib/gl/limits.in.h index e7cdd54..b77bf75 100644 --- a/lib/gl/limits.in.h +++ b/lib/gl/limits.in.h @@ -1,30 +1,46 @@ /* A GNU-like <limits.h>. - Copyright 2016-2019 Free Software Foundation, Inc. + Copyright 2016-2022 Free Software Foundation, Inc. - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License - as published by the Free Software Foundation; either version 2.1, or - (at your option) any later version. + This file is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License - along with this program; if not, see <https://www.gnu.org/licenses/>. */ - -#ifndef _@GUARD_PREFIX@_LIMITS_H + along with this program. If not, see <https://www.gnu.org/licenses/>. */ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif @PRAGMA_COLUMNS@ -/* The include_next requires a split double-inclusion guard. */ +#if defined _GL_ALREADY_INCLUDING_LIMITS_H +/* Special invocation convention: + On Haiku/x86_64, we have a sequence of nested includes + <limits.h> -> <syslimits.h> -> <limits.h>. + In this situation, LONG_MAX and INT_MAX are not yet defined, + therefore we should not attempt to define LONG_BIT. */ + #@INCLUDE_NEXT@ @NEXT_LIMITS_H@ +#else +/* Normal invocation convention. */ + +#ifndef _@GUARD_PREFIX@_LIMITS_H + +# define _GL_ALREADY_INCLUDING_LIMITS_H + +/* The include_next requires a split double-inclusion guard. */ +# @INCLUDE_NEXT@ @NEXT_LIMITS_H@ + +# undef _GL_ALREADY_INCLUDING_LIMITS_H + #ifndef _@GUARD_PREFIX@_LIMITS_H #define _@GUARD_PREFIX@_LIMITS_H @@ -83,10 +99,11 @@ # endif #endif -/* Macros specified by ISO/IEC TS 18661-1:2014. */ +/* Macros specified by C2x and by ISO/IEC TS 18661-1:2014. */ #if (! defined ULLONG_WIDTH \ - && (defined _GNU_SOURCE || defined __STDC_WANT_IEC_60559_BFP_EXT__)) + && (defined _GNU_SOURCE || defined __STDC_WANT_IEC_60559_BFP_EXT__ \ + || (defined __STDC_VERSION__ && 201710 < __STDC_VERSION__))) # define CHAR_WIDTH _GL_INTEGER_WIDTH (CHAR_MIN, CHAR_MAX) # define SCHAR_WIDTH _GL_INTEGER_WIDTH (SCHAR_MIN, SCHAR_MAX) # define UCHAR_WIDTH _GL_INTEGER_WIDTH (0, UCHAR_MAX) @@ -98,7 +115,17 @@ # define ULONG_WIDTH _GL_INTEGER_WIDTH (0, ULONG_MAX) # define LLONG_WIDTH _GL_INTEGER_WIDTH (LLONG_MIN, LLONG_MAX) # define ULLONG_WIDTH _GL_INTEGER_WIDTH (0, ULLONG_MAX) -#endif /* !ULLONG_WIDTH && (_GNU_SOURCE || __STDC_WANT_IEC_60559_BFP_EXT__) */ +#endif + +/* Macros specified by C2x. */ + +#if (! defined BOOL_WIDTH \ + && (defined _GNU_SOURCE \ + || (defined __STDC_VERSION__ && 201710 < __STDC_VERSION__))) +# define BOOL_MAX 1 +# define BOOL_WIDTH 1 +#endif #endif /* _@GUARD_PREFIX@_LIMITS_H */ #endif /* _@GUARD_PREFIX@_LIMITS_H */ +#endif |