boolean 3814 libglibc/regex.c static boolean group_match_null_string_p _RE_ARGS ((unsigned char **p, boolean 3817 libglibc/regex.c static boolean alt_match_null_string_p _RE_ARGS ((unsigned char *p, boolean 3820 libglibc/regex.c static boolean common_op_match_null_string_p _RE_ARGS ((unsigned char **p,