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Make std::get constexpr

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@186525 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2013-07-17 18:25:36 +00:00
parent f7777e8554
commit 8fc4f5a251
12 changed files with 299 additions and 51 deletions
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24
test/containers/sequences/array/array.tuple/get.pass.cpp
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@@ -14,6 +14,16 @@
#include <array>
#include <cassert>
#if __cplusplus > 201103L
struct S {
std::array<int, 3> a;
int k;
constexpr S() : a{1,2,3}, k(std::get<2>(a)) {}
};
constexpr std::array<int, 2> getArr () { return { 3, 4 }; }
#endif
int main()
{
{
@@ -25,4 +35,18 @@ int main()
assert(c[1] == 5.5);
assert(c[2] == 3.5);
}
#if _LIBCPP_STD_VER > 11
{
typedef double T;
typedef std::array<T, 3> C;
constexpr C c = {1, 2, 3.5};
static_assert(std::get<0>(c) == 1, "");
static_assert(std::get<1>(c) == 2, "");
static_assert(std::get<2>(c) == 3.5, "");
}
{
static_assert(S().k == 3, "");
static_assert(std::get<1>(getArr()) == 4, "");
}
#endif
}