chrono (duration<>::duration(const duration<>&)): Fix per the straightforward resolution of DR 974.
2009-10-26 Paolo Carlini <paolo.carlini@oracle.com> * include/std/chrono (duration<>::duration(const duration<>&)): Fix per the straightforward resolution of DR 974. * testsuite/20_util/duration/cons/dr974.cc: Add. From-SVN: r153581
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2009-10-26 Paolo Carlini <paolo.carlini@oracle.com>
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* include/std/chrono (duration<>::duration(const duration<>&)): Fix
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per the straightforward resolution of DR 974.
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* testsuite/20_util/duration/cons/dr974.cc: Add.
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2009-10-26 Jakub Jelinek <jakub@redhat.com>
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PR libstdc++/38923
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@ -225,7 +225,8 @@ namespace std
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: __r(duration_cast<duration>(__d).count())
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{
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static_assert(treat_as_floating_point<rep>::value == true
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|| ratio_divide<_Period2, period>::type::den == 1,
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|| (ratio_divide<_Period2, period>::type::den == 1
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&& !treat_as_floating_point<_Rep2>::value),
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"the resulting duration is not exactly representable");
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}
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@ -0,0 +1,37 @@
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// { dg-do compile }
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// { dg-options "-std=gnu++0x" }
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// { dg-require-cstdint "" }
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// Copyright (C) 2009 Free Software Foundation
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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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// 20.8.3.1 duration constructors [time.duration.cons]
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#include <chrono>
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// DR 974.
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void test01()
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{
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using namespace std::chrono;
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duration<double> d(3.5);
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duration<int> i = d; // implicit truncation, should not compile
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}
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// { dg-error "instantiated from here" "" { target *-*-* } 32 }
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// { dg-error "not exactly representable" "" { target *-*-* } 227 }
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// { dg-excess-errors "In instantiation of" }
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