1164 #define FAIL_STACK_EMPTY()     (fail_stack.avail == 0)
1166 #define FAIL_STACK_FULL()      (fail_stack.avail == fail_stack.size)
1175     fail_stack.stack = (fail_stack_elt_t *)				\
1179     if (fail_stack.stack == NULL)					\
1182     fail_stack.size = INIT_FAILURE_ALLOC;				\
1183     fail_stack.avail = 0;						\
1186 #define RESET_FAIL_STACK()  REGEX_FREE_STACK (fail_stack.stack)
1190     fail_stack.avail = 0;						\
1212 #define GROW_FAIL_STACK(fail_stack)					\  argument
1213   (((fail_stack).size * sizeof (fail_stack_elt_t)			\
1216    : ((fail_stack).stack						\
1218 	REGEX_REALLOCATE_STACK ((fail_stack).stack,			\
1219 	  (fail_stack).size * sizeof (fail_stack_elt_t),		\
1221 	       ((fail_stack).size * sizeof (fail_stack_elt_t)		\
1224       (fail_stack).stack == NULL					\
1226       : ((fail_stack).size						\
1228 		 ((fail_stack).size * sizeof (fail_stack_elt_t)		\
1248   fail_stack.stack[fail_stack.avail++].pointer = (unsigned char *) (item)
1254   fail_stack.stack[fail_stack.avail++].integer = (item)
1260   fail_stack.stack[fail_stack.avail++] =  (item)
1264 #define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer
1265 #define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer
1266 #define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail]
1297     DEBUG_PRINT2 ("  Before push, next avail: %d\n", (fail_stack).avail);\
1298     DEBUG_PRINT2 ("			size: %d\n", (fail_stack).size);\
1306 	if (!GROW_FAIL_STACK (fail_stack))				\
1310 		       (fail_stack).size);				\
1388 #define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail)
1413   DEBUG_PRINT2 ("  Before pop, next avail: %d\n", fail_stack.avail);	\
1414   DEBUG_PRINT2 ("		     size: %d\n", fail_stack.size);	\
1416   assert (fail_stack.avail >= NUM_NONREG_ITEMS);			\
1794 static fail_stack_type fail_stack;  variable
2998     if (fail_stack.size < re_max_failures * TYPICAL_FAILURE_SIZE)
3000 	fail_stack.size = re_max_failures * TYPICAL_FAILURE_SIZE;
3003 	if (! fail_stack.stack)
3004 	  fail_stack.stack
3005 	    = (fail_stack_elt_t *) xmalloc (fail_stack.size
3008 	  fail_stack.stack
3009 	    = (fail_stack_elt_t *) xrealloc (fail_stack.stack,
3010 					     (fail_stack.size
3013 	if (! fail_stack.stack)
3014 	  fail_stack.stack
3015 	    = (fail_stack_elt_t *) malloc (fail_stack.size
3018 	  fail_stack.stack
3019 	    = (fail_stack_elt_t *) realloc (fail_stack.stack,
3020 					    (fail_stack.size
3180   fail_stack_type fail_stack;  local
3233 	      p = fail_stack.stack[--fail_stack.avail].pointer;
3533 	      && fail_stack.stack[fail_stack.avail - 1].pointer == p)
3534 	    fail_stack.avail--;
3553 	      if (!PUSH_PATTERN_OP (p + j, fail_stack))
4010     REGEX_FREE_STACK (fail_stack.stack);				\
4155   fail_stack_type fail_stack;  local