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libcxx_old/test/std/containers/associative/multimap/size.pass.cpp

62 lines
1.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <map>
// class multimap
// size_type size() const;
#include <map>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
int main(int, char**)
{
{
typedef std::multimap<int, double> M;
M m;
assert(m.size() == 0);
m.insert(M::value_type(2, 1.5));
assert(m.size() == 1);
m.insert(M::value_type(1, 1.5));
assert(m.size() == 2);
m.insert(M::value_type(3, 1.5));
assert(m.size() == 3);
m.erase(m.begin());
assert(m.size() == 2);
m.erase(m.begin());
assert(m.size() == 1);
m.erase(m.begin());
assert(m.size() == 0);
}
#if TEST_STD_VER >= 11
{
typedef std::multimap<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M;
M m;
assert(m.size() == 0);
m.insert(M::value_type(2, 1.5));
assert(m.size() == 1);
m.insert(M::value_type(1, 1.5));
assert(m.size() == 2);
m.insert(M::value_type(3, 1.5));
assert(m.size() == 3);
m.erase(m.begin());
assert(m.size() == 2);
m.erase(m.begin());
assert(m.size() == 1);
m.erase(m.begin());
assert(m.size() == 0);
}
#endif
return 0;
}