re_comp

re_comp, re_exec - BSD regex functions

#define _REGEX_RE_COMP
#include <sys/types.h>
#define _REGEX_RE_COMP
#include <regex.h> I char *re_comp(char * regex );
I int re_exec(char * string );

R re_comp () is used to compile the null-terminated regular expression pointed to by R regex . The compiled pattern occupies a static area, the pattern buffer, which is overwritten by subsequent use of R re_comp (). If regex is NULL, no operation is performed and the pattern buffer's contents are not altered. R re_exec () is used to assess whether the null-terminated string pointed to by string matches the previously compiled R regex .

R re_comp () returns NULL on successful compilation of regex otherwise it returns a pointer to an appropriate error message. R re_exec () returns 1 for a successful match, zero for failure.

4.3BSD

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

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