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author | Andy Wingo <wingo@pobox.com> | 2021-01-20 21:52:54 +0100 |
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committer | Andy Wingo <wingo@pobox.com> | 2021-01-20 23:03:56 +0100 |
commit | a91b95cca2d397c84f8b9bbd602d40209a7092ce (patch) | |
tree | 2c286a291f5a2b812d6e216be10936f2709d59cf /lib/regex.h | |
parent | 758b31994cff582c7e8785b4cc2240dbf3573837 (diff) | |
download | guile-a91b95cca2d397c84f8b9bbd602d40209a7092ce.tar.gz |
Update Gnulib to v0.1-4379-g2ef5a9b4b
Also bump required autoconf version to 2.64, as required by Gnulib.
Diffstat (limited to 'lib/regex.h')
-rw-r--r-- | lib/regex.h | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/lib/regex.h b/lib/regex.h index e356b2cd9..8e4ef4557 100644 --- a/lib/regex.h +++ b/lib/regex.h @@ -1,7 +1,6 @@ /* Definitions for data structures and routines for the regular expression library. - Copyright (C) 1985, 1989-1993, 1995-1998, 2000-2003, 2005-2017 Free Software - Foundation, Inc. + Copyright (C) 1985, 1989-2021 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,7 +15,7 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + <https://www.gnu.org/licenses/>. */ #ifndef _REGEX_H #define _REGEX_H 1 @@ -601,35 +600,40 @@ extern void re_set_registers (struct re_pattern_buffer *__buffer, #endif /* Use GNU */ #if defined _REGEX_RE_COMP || (defined _LIBC && defined __USE_MISC) -# ifndef _CRAY /* 4.2 bsd compatibility. */ extern char *re_comp (const char *); extern int re_exec (const char *); -# endif #endif -/* GCC 2.95 and later have "__restrict"; C99 compilers have +/* For plain 'restrict', use glibc's __restrict if defined. + Otherwise, GCC 2.95 and later have "__restrict"; C99 compilers have "restrict", and "configure" may have defined "restrict". Other compilers use __restrict, __restrict__, and _Restrict, and 'configure' might #define 'restrict' to those words, so pick a different name. */ #ifndef _Restrict_ -# if 199901L <= __STDC_VERSION__ -# define _Restrict_ restrict -# elif 2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__) +# if defined __restrict \ + || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \ + || __clang_major__ >= 3 # define _Restrict_ __restrict +# elif 199901L <= __STDC_VERSION__ || defined restrict +# define _Restrict_ restrict # else # define _Restrict_ # endif #endif -/* gcc 3.1 and up support the [restrict] syntax. Don't trust - sys/cdefs.h's definition of __restrict_arr, though, as it - mishandles gcc -ansi -pedantic. */ +/* For the ISO C99 syntax + array_name[restrict] + use glibc's __restrict_arr if available. + Otherwise, GCC 3.1 and clang support this syntax (but not in C++ mode). + Other ISO C99 compilers support it as well. */ #ifndef _Restrict_arr_ -# if ((199901L <= __STDC_VERSION__ \ - || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \ - && !defined __STRICT_ANSI__)) \ - && !defined __GNUG__) +# ifdef __restrict_arr +# define _Restrict_arr_ __restrict_arr +# elif ((199901L <= __STDC_VERSION__ \ + || 3 < __GNUC__ + (1 <= __GNUC_MINOR__) \ + || __clang_major__ >= 3) \ + && !defined __cplusplus) # define _Restrict_arr_ _Restrict_ # else # define _Restrict_arr_ |