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60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <map>
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// map()
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// noexcept(
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// is_nothrow_default_constructible<allocator_type>::value &&
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// is_nothrow_default_constructible<key_compare>::value &&
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// is_nothrow_copy_constructible<key_compare>::value);
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// This tests a conforming extension
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// UNSUPPORTED: c++98, c++03
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#include <map>
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#include <cassert>
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#include "test_macros.h"
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#include "MoveOnly.h"
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#include "test_allocator.h"
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template <class T>
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struct some_comp
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{
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typedef T value_type;
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some_comp();
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bool operator()(const T&, const T&) const { return false; }
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};
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int main(int, char**)
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{
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typedef std::pair<const MoveOnly, MoveOnly> V;
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#if defined(_LIBCPP_VERSION)
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{
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typedef std::map<MoveOnly, MoveOnly> C;
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static_assert(std::is_nothrow_default_constructible<C>::value, "");
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}
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{
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typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, test_allocator<V>> C;
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static_assert(std::is_nothrow_default_constructible<C>::value, "");
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}
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#endif // _LIBCPP_VERSION
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{
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typedef std::map<MoveOnly, MoveOnly, std::less<MoveOnly>, other_allocator<V>> C;
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static_assert(!std::is_nothrow_default_constructible<C>::value, "");
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}
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{
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typedef std::map<MoveOnly, MoveOnly, some_comp<MoveOnly>> C;
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static_assert(!std::is_nothrow_default_constructible<C>::value, "");
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}
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return 0;
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}
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