forked from OSchip/llvm-project
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <set>
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// class set
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// template <class... Args>
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// pair<iterator, bool> emplace(Args&&... args);
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#include <set>
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#include <cassert>
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#include "../../Emplaceable.h"
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#include "../../DefaultOnly.h"
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int main()
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{
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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{
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typedef std::set<DefaultOnly> M;
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typedef std::pair<M::iterator, bool> R;
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M m;
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assert(DefaultOnly::count == 0);
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R r = m.emplace();
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assert(r.second);
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assert(r.first == m.begin());
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assert(m.size() == 1);
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assert(*m.begin() == DefaultOnly());
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assert(DefaultOnly::count == 1);
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r = m.emplace();
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assert(!r.second);
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assert(r.first == m.begin());
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assert(m.size() == 1);
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assert(*m.begin() == DefaultOnly());
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assert(DefaultOnly::count == 1);
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}
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assert(DefaultOnly::count == 0);
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{
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typedef std::set<Emplaceable> M;
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typedef std::pair<M::iterator, bool> R;
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M m;
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R r = m.emplace();
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assert(r.second);
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assert(r.first == m.begin());
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assert(m.size() == 1);
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assert(*m.begin() == Emplaceable());
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r = m.emplace(2, 3.5);
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assert(r.second);
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assert(r.first == next(m.begin()));
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assert(m.size() == 2);
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assert(*r.first == Emplaceable(2, 3.5));
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r = m.emplace(2, 3.5);
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assert(!r.second);
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assert(r.first == next(m.begin()));
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assert(m.size() == 2);
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assert(*r.first == Emplaceable(2, 3.5));
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}
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{
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typedef std::set<int> M;
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typedef std::pair<M::iterator, bool> R;
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M m;
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R r = m.emplace(M::value_type(2));
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assert(r.second);
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assert(r.first == m.begin());
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assert(m.size() == 1);
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assert(*r.first == 2);
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}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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}
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