NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

RE_COMP(3)                Linux Programmer's Manual               RE_COMP(3)

NAME         top

       re_comp, re_exec - BSD regex functions

SYNOPSIS         top

       #define _REGEX_RE_COMP
       #include <sys/types.h>
       #include <regex.h>

       char *re_comp(const char *regex);

       int re_exec(const char *string);

DESCRIPTION         top

       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         top

       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         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌─────────────────────┬───────────────┬───────────┐
       │Interface            Attribute     Value     │
       ├─────────────────────┼───────────────┼───────────┤
       │re_comp(), re_exec() │ Thread safety │ MT-Unsafe │
       └─────────────────────┴───────────────┴───────────┘

CONFORMING TO         top

       4.3BSD.

NOTES         top

       These functions are obsolete; the functions documented in regcomp(3)
       should be used instead.

SEE ALSO         top

       regcomp(3), regex(7), GNU regex manual

COLOPHON         top

       This page is part of release 4.08 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
       https://www.kernel.org/doc/man-pages/.

GNU                              2015-03-02                       RE_COMP(3)