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NAME

       re_comp, re_exec - BSD regex functions

SYNOPSIS

       #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.

CONFORMING TO

       BSD 4.3

SEE ALSO

       regex(7), GNU regex manual