49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
// Copyright (C) 2020-2021 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-do compile { target c++14 } }
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#include <experimental/numeric>
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#include <limits.h>
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void
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test01()
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{
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// PR libstdc++/92978
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static_assert( std::experimental::gcd(-120, 10U) == 10,
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"mixed signed/unsigned" );
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static_assert( std::experimental::gcd(120U, -10) == 10,
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"mixed signed/unsigned" );
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static_assert( std::experimental::lcm(-42, 21U) == 42U );
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}
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void
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test02()
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{
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static_assert( std::experimental::gcd(INT_MIN, 0LL) == 1LL+INT_MAX,
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"|INT_MIN| should not be undefined as long as it fits in the result" );
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static_assert( std::experimental::gcd(0LL, INT_MIN) == 1LL+INT_MAX,
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"|INT_MIN| should not be undefined" );
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static_assert( std::experimental::gcd(INT_MIN, 0LL + INT_MIN) == 1LL + INT_MAX,
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"|INT_MIN| should not be undefined" );
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static_assert( std::experimental::gcd(INT_MIN, 1LL + INT_MAX) == 1LL + INT_MAX,
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"|INT_MIN| should not be undefined" );
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static_assert( std::experimental::gcd(SHRT_MIN, 1U + SHRT_MAX) == 1U + SHRT_MAX,
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"|SHRT_MIN| should not be undefined" );
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}
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