Update copyright years.

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 25_algorithms / set_symmetric_difference / constexpr.cc

diff --git a/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc b/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
index fc578cc7e794e340c3f530585cfb414d650bf4e5..5877020507d0f237e321e6aaeb5becab2bcd4675 100644 (file)
--- a/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/set_symmetric_difference/constexpr.cc
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2022 Free Software Foundation, Inc.
+// Copyright (C) 2019-2023 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -20,6 +20,7 @@
 
 #include <algorithm>
 #include <array>
+#include <functional>
 
 constexpr bool
 test()