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81 lines
2.1 KiB
C++
81 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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// UNSUPPORTED: c++98, c++03
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// <map>
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// class map
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// mapped_type& operator[](key_type&& k);
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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 "count_new.hpp"
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#include "MoveOnly.h"
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#include "min_allocator.h"
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#include "container_test_types.h"
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int main()
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{
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{
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std::map<MoveOnly, double> m;
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assert(m.size() == 0);
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assert(m[1] == 0.0);
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assert(m.size() == 1);
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m[1] = -1.5;
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assert(m[1] == -1.5);
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assert(m.size() == 1);
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assert(m[6] == 0);
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assert(m.size() == 2);
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m[6] = 6.5;
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assert(m[6] == 6.5);
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assert(m.size() == 2);
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}
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{
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typedef std::pair<const MoveOnly, double> V;
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std::map<MoveOnly, double, std::less<MoveOnly>, min_allocator<V>> m;
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assert(m.size() == 0);
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assert(m[1] == 0.0);
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assert(m.size() == 1);
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m[1] = -1.5;
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assert(m[1] == -1.5);
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assert(m.size() == 1);
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assert(m[6] == 0);
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assert(m.size() == 2);
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m[6] = 6.5;
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assert(m[6] == 6.5);
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assert(m.size() == 2);
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}
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{
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// Use "container_test_types.h" to check what arguments get passed
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// to the allocator for operator[]
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using Container = TCT::map<>;
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using Key = Container::key_type;
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using MappedType = Container::mapped_type;
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ConstructController* cc = getConstructController();
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cc->reset();
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{
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Container c;
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Key k(1);
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cc->expect<std::piecewise_construct_t const&, std::tuple<Key &&>&&, std::tuple<>&&>();
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MappedType& mref = c[std::move(k)];
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assert(!cc->unchecked());
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{
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Key k2(1);
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DisableAllocationGuard g;
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MappedType& mref2 = c[std::move(k2)];
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assert(&mref == &mref2);
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}
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}
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}
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}
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