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51 lines
1.2 KiB
C++
51 lines
1.2 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, c++11
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// <map>
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// class multimap
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// template<typename K>
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// size_type count(const K& x) const; // C++14
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#include <cassert>
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#include <map>
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#include <utility>
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#include "min_allocator.h"
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#include "private_constructor.hpp"
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#include "test_macros.h"
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struct Comp {
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using is_transparent = void;
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bool operator()(const std::pair<int, int> &lhs,
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const std::pair<int, int> &rhs) const {
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return lhs < rhs;
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}
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bool operator()(const std::pair<int, int> &lhs, int rhs) const {
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return lhs.first < rhs;
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}
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bool operator()(int lhs, const std::pair<int, int> &rhs) const {
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return lhs < rhs.first;
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}
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};
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int main() {
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std::multimap<std::pair<int, int>, int, Comp> s{
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{{2, 1}, 1}, {{1, 1}, 2}, {{1, 1}, 3}, {{1, 1}, 4}, {{2, 2}, 5}};
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auto cnt = s.count(1);
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assert(cnt == 3);
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}
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