| 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 | // <stack> |
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| 10 | |
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| 11 | // explicit stack(Container&& = Container()); // before C++20 |
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| 12 | // stack() : stack(Container()) {} // C++20 |
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| 13 | // explicit stack(Container&&); // before C++20 |
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| 14 | |
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| 15 | #include <stack> |
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| 16 | #include <vector> |
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| 17 | #include <cassert> |
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| 18 | |
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| 19 | #include "test_macros.h" |
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| 20 | #include "test_allocator.h" |
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| 21 | #if TEST_STD_VER >= 11 |
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| 22 | # include "test_convertible.h" |
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| 23 | #endif |
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| 24 | |
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| 25 | int main(int, char**) { |
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| 26 | typedef std::vector<int, limited_allocator<int, 10> > Container; |
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| 27 | typedef std::stack<int, Container> Q; |
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| 28 | Q q; |
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| 29 | assert(q.size() == 0); |
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| 30 | q.push(1); |
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| 31 | q.push(2); |
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| 32 | assert(q.size() == 2); |
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| 33 | assert(q.top() == 2); |
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| 34 | |
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| 35 | #if TEST_STD_VER >= 11 |
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| 36 | // It should be explicit, so not convertible before C++20. |
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| 37 | static_assert(test_convertible<Q>(), "" ); |
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| 38 | #endif |
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| 39 | |
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| 40 | return 0; |
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| 41 | } |
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| 42 | |
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