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Add a bit more to one of the chrono tests 

llvm-svn: 298418
This commit is contained in:
Marshall Clow 2017-03-21 18:40:46 +00:00
parent 40a4f40679
commit c3d7b98d9d
1 changed files with 11 additions and 0 deletions
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11
libcxx/test/std/utilities/time/time.duration/time.duration.arithmetic/op_+.pass.cpp
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@ -32,4 +32,15 @@ int main()
static_assert(m.count() == m2.count(), ""); static_assert(m.count() == m2.count(), "");
} }
#endif #endif
// P0548
{
typedef std::chrono::duration<int, std::ratio<10,10> > D10;
typedef std::chrono::duration<int, std::ratio< 1, 1> > D1;
D10 zero{0};
D10 one{1};
static_assert( (std::is_same< decltype(+one), decltype(zero-one) >::value), "");
static_assert( (std::is_same< decltype(zero+one), D1>::value), "");
static_assert( (std::is_same< decltype(+one), D1>::value), "");
}
} }