| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <utility> |
| |
| // template <class T1, class T2> struct pair |
| |
| // pair(const T1& x, const T2& y); |
| |
| #include <utility> |
| #include <cassert> |
| |
| class A |
| { |
| int data_; |
| public: |
| A(int data) : data_(data) {} |
| |
| bool operator==(const A& a) const {return data_ == a.data_;} |
| }; |
| |
| #if _LIBCPP_STD_VER > 11 |
| class AC |
| { |
| int data_; |
| public: |
| constexpr AC(int data) : data_(data) {} |
| |
| constexpr bool operator==(const AC& a) const {return data_ == a.data_;} |
| }; |
| #endif |
| |
| int main() |
| { |
| { |
| typedef std::pair<float, short*> P; |
| P p(3.5f, 0); |
| assert(p.first == 3.5f); |
| assert(p.second == nullptr); |
| } |
| { |
| typedef std::pair<A, int> P; |
| P p(1, 2); |
| assert(p.first == A(1)); |
| assert(p.second == 2); |
| } |
| |
| #if _LIBCPP_STD_VER > 11 |
| { |
| typedef std::pair<float, short*> P; |
| constexpr P p(3.5f, 0); |
| static_assert(p.first == 3.5f, ""); |
| static_assert(p.second == nullptr, ""); |
| } |
| { |
| typedef std::pair<AC, int> P; |
| constexpr P p(1, 2); |
| static_assert(p.first == AC(1), ""); |
| static_assert(p.second == 2, ""); |
| } |
| #endif |
| } |