NAME¶
re_comp, re_exec - BSD regex functions
SYNOPSIS¶
#define _REGEX_RE_COMP
#include <sys/types.h>
#include <regex.h>
char *re_comp(const char *regex);
int re_exec(const char *string);
DESCRIPTION¶
re_comp() is used to compile the null-terminated regular expression
pointed to by
regex. The compiled pattern occupies a static area, the
pattern buffer, which is overwritten by subsequent use of
re_comp(). If
regex is NULL, no operation is performed and the pattern buffer's
contents are not altered.
re_exec() is used to assess whether the null-terminated string pointed to
by
string matches the previously compiled
regex.
RETURN VALUE¶
re_comp() returns NULL on successful compilation of
regex
otherwise it returns a pointer to an appropriate error message.
re_exec() returns 1 for a successful match, zero for failure.
ATTRIBUTES¶
Multithreading (see pthreads(7))¶
The
re_comp() and
re_exec() functions are not thread-safe.
4.3BSD.
NOTES¶
These functions are obsolete; the functions documented in
regcomp(3)
should be used instead.
SEE ALSO¶
regcomp(3),
regex(7), GNU regex manual
COLOPHON¶
This page is part of release 3.74 of the Linux
man-pages project. A
description of the project, information about reporting bugs, and the latest
version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
