forked from OSchip/llvm-project
34 lines
775 B
C++
34 lines
775 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <chrono>
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// duration
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// duration operator-() const;
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#include <chrono>
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#include <cassert>
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int main()
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{
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{
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const std::chrono::minutes m(3);
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std::chrono::minutes m2 = -m;
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assert(m2.count() == -m.count());
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}
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#ifndef _LIBCPP_HAS_NO_CONSTEXPR
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{
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constexpr std::chrono::minutes m(3);
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constexpr std::chrono::minutes m2 = -m;
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static_assert(m2.count() == -m.count(), "");
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}
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#endif
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}
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