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authorPaul Eggert <eggert@cs.ucla.edu>2021-09-21 07:47:45 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2021-09-21 08:00:44 -0700
commit0b5ca7c3e551e5502f3be3b06453324fe8604e82 (patch)
tree0c46027d9aee6c5d533cabb0c3fcb7895197d178 /include/regex.h
parentf3e664563361dc17530113b3205998d1f19dc4d9 (diff)
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regex: copy back from Gnulib
Copy regex-related files back from Gnulib, to fix a problem with static checking of regex calls noted by Martin Sebor. This merges the following changes: * New macro __attribute_nonnull__ in misc/sys/cdefs.h, for use later when copying other files back from Gnulib. * Use __GNULIB_CDEFS instead of __GLIBC__ when deciding whether to include bits/wordsize.h etc. * Avoid duplicate entries in epsilon closure table. * New regex.h macro _REGEX_NELTS to let regexec say that its pmatch arg should contain nmatch elts. Use that for regexec, instead of __attr_access (which is incorrect). * New regex.h macro _Attr_access_ which is like __attr_access except portable to non-glibc platforms. * Add some DEBUG_ASSERTs to pacify gcc -fanalyzer and to catch recently-fixed performance bugs if they recur. * Add Gnulib-specific stuff to port the dynarray- and lock-using parts of regex code to non-glibc platforms. * Fix glibc bug 11053. * Avoid some undefined behavior when popping an empty fail stack.
Diffstat (limited to 'include/regex.h')
-rw-r--r--include/regex.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/regex.h b/include/regex.h
index 24eca2c..34fb67d 100644
--- a/include/regex.h
+++ b/include/regex.h
@@ -37,7 +37,8 @@ extern int __regcomp (regex_t *__preg, const char *__pattern, int __cflags);
libc_hidden_proto (__regcomp)
extern int __regexec (const regex_t *__preg, const char *__string,
- size_t __nmatch, regmatch_t __pmatch[], int __eflags);
+ size_t __nmatch, regmatch_t __pmatch[__nmatch],
+ int __eflags);
libc_hidden_proto (__regexec)
extern size_t __regerror (int __errcode, const regex_t *__preg,