50 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <map>10 11// class multimap12 13// size_type max_size() const;14 15#include <cassert>16#include <limits>17#include <map>18#include <type_traits>19 20#include "test_allocator.h"21#include "test_macros.h"22 23int main(int, char**) {24 typedef std::pair<const int, int> KV;25 {26 typedef limited_allocator<KV, 10> A;27 typedef std::multimap<int, int, std::less<int>, A> C;28 C c;29 assert(c.max_size() <= 10);30 LIBCPP_ASSERT(c.max_size() == 10);31 }32 {33 typedef limited_allocator<KV, (std::size_t)-1> A;34 typedef std::multimap<int, int, std::less<int>, A> C;35 const C::size_type max_dist = static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());36 C c;37 assert(c.max_size() <= max_dist);38 LIBCPP_ASSERT(c.max_size() == max_dist);39 }40 {41 typedef std::multimap<char, int> C;42 const C::size_type max_dist = static_cast<C::size_type>(std::numeric_limits<C::difference_type>::max());43 C c;44 assert(c.max_size() <= max_dist);45 assert(c.max_size() <= alloc_max_size(c.get_allocator()));46 }47 48 return 0;49}50