diff options
Diffstat (limited to 'libguile/regex-posix.h')
-rw-r--r-- | libguile/regex-posix.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libguile/regex-posix.h b/libguile/regex-posix.h index 3290ffcf5..172ed928c 100644 --- a/libguile/regex-posix.h +++ b/libguile/regex-posix.h @@ -45,11 +45,14 @@ * If you do not wish that, delete this exception notice. */ +/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, + gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ + #include "libguile/__scm.h" extern long scm_tc16_regex; #define SCM_RGX(X) ((regex_t *) SCM_CDR(X)) -#define SCM_RGXP(X) (SCM_CAR (X) == (SCM) scm_tc16_regex) +#define SCM_RGXP(X) (SCM_NIMP(X) && (SCM_CAR (X) == (SCM) scm_tc16_regex)) extern SCM scm_make_regexp SCM_P ((SCM pat, SCM flags)); SCM scm_regexp_p SCM_P ((SCM x)); |