functional header

BillyDonahue · BillyDonahue · commit 08ee4d14db28 · 2019-11-15T08:40:17.000-05:00
diff --git a/src/test_lib_json/main.cpp b/src/test_lib_json/main.cpp
@@ -14,6 +14,7 @@
 #include "jsontest.h"
 #include <cmath>
 #include <cstring>
+#include <functional>
 #include <iomanip>
 #include <iostream>
 #include <iterator>
