added functional header

This commit is contained in:
Zac Hansen 2018-04-15 00:54:15 -07:00
parent d1632e7a46
commit ba958e989b

View File

@ -24,6 +24,7 @@
#include <stdint.h> // for uint16_t
#include <string> // for basic_string, operator==, string, operator<<
#include <typeinfo> // for type_info
#include <functional>
namespace gsl {
struct fail_fast;