ruby-106/ruby/regexec.c

870 #define STACK_NULL_CHECK(isnull,id,s) do {\
877         (isnull) = (k->u.null_check.pstr == (s));\
884 #define STACK_NULL_CHECK_REC(isnull,id,s) do {\
893           (isnull) = (k->u.null_check.pstr == (s));\
905 #define STACK_NULL_CHECK_MEMST(isnull,id,s,reg) do {\
913           (isnull) = 0;\
918           (isnull) = 1;\
922                 (isnull) = 0; break;\
929                 (isnull) = 0; break;\
932                 (isnull) = -1; /* empty, but position changed */ \
944 #define STACK_NULL_CHECK_MEMST_REC(isnull,id,s,reg) do {\
954             (isnull) = 0;\
959             (isnull) = 1;\
963                   (isnull) = 0; break;\
970                   (isnull) = 0; break;\
973                   (isnull) = -1; /* empty, but position changed */ \
2518 	int isnull;
2521 	STACK_NULL_CHECK(isnull, mem, s);
2522 	if (isnull) {
2553 	int isnull;
2556 	STACK_NULL_CHECK_MEMST(isnull, mem, s, reg);
2557 	if (isnull) {
2562 	  if (isnull == -1) goto fail;
2575 	int isnull;
2579 	STACK_NULL_CHECK_MEMST_REC(isnull, mem, s, reg);
2581 	STACK_NULL_CHECK_REC(isnull, mem, s);
2583 	if (isnull) {
2588 	  if (isnull == -1) goto fail;