| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11 |
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| 10 | |
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| 11 | // <propagate_const> |
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| 12 | |
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| 13 | // template <class T> constexpr void swap(propagate_const<T>& x, propagate_const<T>& y); |
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| 14 | |
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| 15 | #include <experimental/propagate_const> |
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| 16 | #include "test_macros.h" |
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| 17 | #include "propagate_const_helpers.h" |
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| 18 | #include <cassert> |
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| 19 | |
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| 20 | using std::experimental::propagate_const; |
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| 21 | |
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| 22 | bool swap_called = false; |
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| 23 | void swap(X &, X &) { swap_called = true; } |
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| 24 | |
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| 25 | int main(int, char**) { |
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| 26 | typedef propagate_const<X> P; |
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| 27 | P p1(1); |
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| 28 | P p2(2); |
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| 29 | swap(p1, p2); |
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| 30 | assert(swap_called); |
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| 31 | |
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| 32 | return 0; |
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| 33 | } |
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| 34 | |
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