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libcxx/test/std/containers/unord/unord.multimap/bucket_count.pass.cpp

49 lines
1.3 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>
// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
// class Alloc = allocator<pair<const Key, T>>>
// class unordered_multimap
// size_type bucket_count() const;
#include <unordered_map>
#include <string>
#include <cassert>
#include "test_macros.h"
int main()
{
{
typedef std::unordered_multimap<int, std::string> C;
const C c;
LIBCPP_ASSERT(c.bucket_count() == 0);
}
{
typedef std::unordered_multimap<int, std::string> C;
typedef std::pair<int, std::string> P;
P a[] =
{
P(10, "ten"),
P(20, "twenty"),
P(30, "thirty"),
P(40, "forty"),
P(50, "fifty"),
P(60, "sixty"),
P(70, "seventy"),
P(80, "eighty"),
};
const C c(std::begin(a), std::end(a));
assert(c.bucket_count() >= 8);
}
}