| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <memory> |
| // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 |
| // |
| // template <class T> |
| // class allocator |
| // { |
| // public: // All of these are constexpr after C++17 |
| // constexpr allocator() noexcept; |
| // constexpr allocator(const allocator&) noexcept; |
| // template<class U> constexpr allocator(const allocator<U>&) noexcept; |
| // ... |
| // }; |
| |
| #include <memory> |
| #include <cstddef> |
| |
| #include "test_macros.h" |
| |
| |
| int main() |
| { |
| { |
| typedef std::allocator<char> AC; |
| typedef std::allocator<long> AL; |
| |
| constexpr AC a1; |
| constexpr AC a2{a1}; |
| constexpr AL a3{a2}; |
| (void) a3; |
| } |
| { |
| typedef std::allocator<const char> AC; |
| typedef std::allocator<const long> AL; |
| |
| constexpr AC a1; |
| constexpr AC a2{a1}; |
| constexpr AL a3{a2}; |
| (void) a3; |
| } |
| |
| } |