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Implement the last bit of P0031: 'A Proposal to Add Constexpr Modifiers to reverse_iterator, move_iterator, array and Range Access' for C++17

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@290976 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2017-01-04 17:58:17 +00:00
parent 1fbd97cfd5
commit e22af6b758
6 changed files with 157 additions and 54 deletions
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14
test/std/containers/sequences/array/array.data/data_const.pass.cpp
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@@ -14,6 +14,8 @@
#include <array>
#include <cassert>
#include "test_macros.h"
// std::array is explicitly allowed to be initialized with A a = { init-list };.
// Disable the missing braces warning for this reason.
#include "disable_missing_braces_warning.h"
@@ -36,4 +38,16 @@ int main()
const T* p = c.data();
(void)p; // to placate scan-build
}
#if TEST_STD_VER > 14
{
typedef std::array<int, 5> C;
constexpr C c1{0,1,2,3,4};
constexpr const C c2{0,1,2,3,4};
static_assert ( c1.data() == &c1[0], "");
static_assert ( *c1.data() == c1[0], "");
static_assert ( c2.data() == &c2[0], "");
static_assert ( *c2.data() == c2[0], "");
}
#endif
}