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posix: Sync regex code with gnulib

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It sync with gnulib commit 43ee1a6bf.  The main change is 9682f18e9.
(which does not have a meaniful description).

Checked on x86_64-linux-gnu.
This commit is contained in:
Adhemerval Zanella
2020-12-29 17:32:25 -03:00
parent fee3b889d8
commit c2a150d089
4 changed files with 35 additions and 19 deletions
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16
posix/regex_internal.h
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@ -77,6 +77,14 @@
# define isblank(ch) ((ch) == ' ' || (ch) == '\t')
#endif
/* regex code assumes isascii has its usual numeric meaning,
even if the portable character set uses EBCDIC encoding,
and even if wint_t is wider than int. */
#ifndef _LIBC
# undef isascii
# define isascii(c) (((c) & ~0x7f) == 0)
#endif
#ifdef _LIBC
# ifndef _RE_DEFINE_LOCALE_FUNCTIONS
# define _RE_DEFINE_LOCALE_FUNCTIONS 1
@ -335,7 +343,7 @@ typedef struct
Idx idx; /* for BACK_REF */
re_context_type ctx_type; /* for ANCHOR */
} opr;
#if __GNUC__ >= 2 && !defined __STRICT_ANSI__
#if (__GNUC__ >= 2 || defined __clang__) && !defined __STRICT_ANSI__
re_token_type_t type : 8;
#else
re_token_type_t type;
@ -841,10 +849,10 @@ re_string_elem_size_at (const re_string_t *pstr, Idx idx)
#endif /* RE_ENABLE_I18N */
#ifndef FALLTHROUGH
# if __GNUC__ < 7
# define FALLTHROUGH ((void) 0)
# else
# if (__GNUC__ >= 7) || (__clang_major__ >= 10)
# define FALLTHROUGH __attribute__ ((__fallthrough__))
# else
# define FALLTHROUGH ((void) 0)
# endif
#endif