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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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15
test/utilities/tuple/tuple.tuple/tuple.cnstr/copy.pass.cpp
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@@ -17,6 +17,8 @@
#include <string>
#include <cassert>
struct Empty {};
int main()
{
{
@@ -45,4 +47,17 @@ int main()
assert(std::get<1>(t) == 'a');
assert(std::get<2>(t) == "some text");
}
#if _LIBCPP_STD_VER > 11
{
typedef std::tuple<int> T;
constexpr T t0(2);
constexpr T t = t0;
static_assert(std::get<0>(t) == 2, "");
}
{
typedef std::tuple<Empty> T;
constexpr T t0;
constexpr T t = t0;
}
#endif
}