1478 #define FAIL_STACK_EMPTY()     (fail_stack.avail == 0)
1480 #define FAIL_STACK_FULL()      (fail_stack.avail == fail_stack.size)
1489     fail_stack.stack = (fail_stack_elt_t *)				\
1492     if (fail_stack.stack == NULL)					\
1495     fail_stack.size = INIT_FAILURE_ALLOC;				\
1496     fail_stack.avail = 0;						\
1499 # define RESET_FAIL_STACK()  REGEX_FREE_STACK (fail_stack.stack)
1503     fail_stack.avail = 0;						\
1517 #define DOUBLE_FAIL_STACK(fail_stack)					\  argument
1518   ((fail_stack).size > (unsigned) (re_max_failures * MAX_FAILURE_ITEMS)	\
1520    : ((fail_stack).stack = (fail_stack_elt_t *)				\
1521         REGEX_REALLOCATE_STACK ((fail_stack).stack, 			\
1522           (fail_stack).size * sizeof (fail_stack_elt_t),		\
1523           ((fail_stack).size << 1) * sizeof (fail_stack_elt_t)),	\
1525       (fail_stack).stack == NULL					\
1527       : ((fail_stack).size <<= 1, 					\
1545   fail_stack.stack[fail_stack.avail++].pointer = (US_CHAR_TYPE *) (item)
1551   fail_stack.stack[fail_stack.avail++].integer = (item)
1557   fail_stack.stack[fail_stack.avail++] =  (item)
1561 #define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer
1562 #define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer
1563 #define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail]
1597     DEBUG_PRINT2 ("  Before push, next avail: %d\n", (fail_stack).avail);\
1598     DEBUG_PRINT2 ("                     size: %d\n", (fail_stack).size);\
1606         if (!DOUBLE_FAIL_STACK (fail_stack))				\
1610 		       (fail_stack).size);				\
1688 #define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail)
1712   DEBUG_PRINT2 ("  Before pop, next avail: %d\n", fail_stack.avail);	\
1713   DEBUG_PRINT2 ("                    size: %d\n", fail_stack.size);	\
1715   assert (fail_stack.avail >= NUM_NONREG_ITEMS);			\
2196 static fail_stack_type fail_stack;  variable
4181     if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS))
4183 	fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS);
4186 	if (! fail_stack.stack)
4187 	  fail_stack.stack
4188 	    = (fail_stack_elt_t *) xmalloc (fail_stack.size
4191 	  fail_stack.stack
4192 	    = (fail_stack_elt_t *) xrealloc (fail_stack.stack,
4193 					     (fail_stack.size
4196 	if (! fail_stack.stack)
4197 	  fail_stack.stack
4198 	    = (fail_stack_elt_t *) malloc (fail_stack.size
4201 	  fail_stack.stack
4202 	    = (fail_stack_elt_t *) realloc (fail_stack.stack,
4203 					    (fail_stack.size
4555   fail_stack_type fail_stack;  local
4608 	      p = fail_stack.stack[--fail_stack.avail].pointer;
4779 	      && fail_stack.stack[fail_stack.avail - 1].pointer == p)
4780             fail_stack.avail--;
4799               if (!PUSH_PATTERN_OP (p + j, fail_stack))
5163     REGEX_FREE_STACK (fail_stack.stack);				\
5181     REGEX_FREE_STACK (fail_stack.stack);				\
5396   fail_stack_type fail_stack;  local