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Make tuple's constructor and std::get<>(tuple) constexpr. Final stage of fixing bug #16599. Thanks to Howard for the review and updates.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186834 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2013-07-22 16:02:19 +00:00
parent 8fc4f5a251
commit da0a0e8a1b
13 changed files with 263 additions and 56 deletions
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12
test/utilities/tuple/tuple.tuple/tuple.cnstr/const_pair.pass.cpp
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@@ -27,4 +27,16 @@ int main()
assert(std::get<0>(t1) == 2);
assert(std::get<1>(t1) == short('a'));
}
#if _LIBCPP_STD_VER > 11
{
typedef std::pair<double, char> P0;
typedef std::tuple<int, short> T1;
constexpr P0 p0(2.5, 'a');
constexpr T1 t1 = p0;
static_assert(std::get<0>(t1) != std::get<0>(p0), "");
static_assert(std::get<1>(t1) == std::get<1>(p0), "");
static_assert(std::get<0>(t1) == 2, "");
static_assert(std::get<1>(t1) == short('a'), "");
}
#endif
}