24 lines
680 B
C++
24 lines
680 B
C++
// Copyright 2020 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/functional/not_fn.h"
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#include <functional>
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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TEST(FunctionalTest, NotFn) {
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constexpr auto not_less = base::not_fn(std::less<>());
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using NotLessT = decltype(not_less);
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static_assert(static_cast<const NotLessT&>(not_less)(1, 1), "");
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static_assert(static_cast<NotLessT&>(not_less)(2, 1), "");
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static_assert(static_cast<const NotLessT&&>(not_less)(2, 2), "");
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static_assert(!static_cast<NotLessT&&>(not_less)(1, 2), "");
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}
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} // namespace base
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