| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <utility> |
| |
| // template <class T1, class T2> struct pair |
| |
| // void swap(pair& p); |
| |
| #include <utility> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| struct S { |
| int i; |
| S() : i(0) {} |
| S(int j) : i(j) {} |
| S * operator& () { assert(false); return this; } |
| S const * operator& () const { assert(false); return this; } |
| bool operator==(int x) const { return i == x; } |
| }; |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::pair<int, short> P1; |
| P1 p1(3, static_cast<short>(4)); |
| P1 p2(5, static_cast<short>(6)); |
| p1.swap(p2); |
| assert(p1.first == 5); |
| assert(p1.second == 6); |
| assert(p2.first == 3); |
| assert(p2.second == 4); |
| } |
| { |
| typedef std::pair<int, S> P1; |
| P1 p1(3, S(4)); |
| P1 p2(5, S(6)); |
| p1.swap(p2); |
| assert(p1.first == 5); |
| assert(p1.second == 6); |
| assert(p2.first == 3); |
| assert(p2.second == 4); |
| } |
| |
| return 0; |
| } |