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libcxx/test/std/containers/unord/unord.map/empty.pass.cpp

47 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <unordered_map>
// class unordered_map
// bool empty() const noexcept;
#include <unordered_map>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
int main()
{
{
typedef std::unordered_map<int, double> M;
M m;
ASSERT_NOEXCEPT(m.empty());
assert(m.empty());
m.insert(M::value_type(1, 1.5));
assert(!m.empty());
m.clear();
assert(m.empty());
}
#if TEST_STD_VER >= 11
{
typedef std::unordered_map<int, double, std::hash<int>, std::equal_to<int>, min_allocator<std::pair<const int, double>>> M;
M m;
ASSERT_NOEXCEPT(m.empty());
assert(m.empty());
m.insert(M::value_type(1, 1.5));
assert(!m.empty());
m.clear();
assert(m.empty());
}
#endif
}