table of contents
RE_COMP(3) | Linux Programmer's Manual | RE_COMP(3) |
NAME¶
re_comp, re_exec - BSD regex functions
SYNOPSIS¶
#define _REGEX_RE_COMP
#include <sys/types.h>
#include <regex.h>
char *re_comp(char *regex);
int re_exec(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.
CONFORMING TO¶
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 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
2013-06-21 | GNU |