Fix missed #include <functional>

<functional> is required for std::hash
This commit is contained in:
Matwey V. Kornilov 2020-06-08 19:25:21 +03:00
parent 339703d1b8
commit 269bf6f5ef

View File

@ -1,5 +1,6 @@
#pragma once
#include <functional>
#include <type_traits>
#include <utility>