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46 lines
981 B
C++
46 lines
981 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 duration& d);
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#include <chrono>
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#include <cassert>
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#include "test_macros.h"
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#if TEST_STD_VER > 14
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constexpr bool test_constexpr()
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{
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std::chrono::seconds s(3);
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s -= std::chrono::seconds(2);
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if (s.count() != 1) return false;
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s -= std::chrono::minutes(2);
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return s.count() == -119;
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}
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#endif
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int main()
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{
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{
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std::chrono::seconds s(3);
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s -= std::chrono::seconds(2);
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assert(s.count() == 1);
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s -= std::chrono::minutes(2);
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assert(s.count() == -119);
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}
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#if TEST_STD_VER > 14
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static_assert(test_constexpr(), "");
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#endif
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}
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