MAX_FAILURE_ITEMS 1174 regex.cpp        ((fail_stack).size > (unsigned) (re_max_failures * MAX_FAILURE_ITEMS)	\
MAX_FAILURE_ITEMS 2870 regex.cpp          if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS))
MAX_FAILURE_ITEMS 2872 regex.cpp      	fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS);