cxx/test/containers/unord/unord.map/unord.map.cnstr/init.pass.cpp

62 lines
2.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. 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_map
// unordered_map(initializer_list<value_type> il);
#include <unordered_map>
#include <string>
#include <cassert>
#include "../../../test_compare.h"
#include "../../../test_hash.h"
#include "../../../test_allocator.h"
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
{
typedef std::unordered_map<int, std::string,
test_hash<std::hash<int> >,
test_compare<std::equal_to<int> >,
test_allocator<std::pair<const int, std::string> >
> C;
typedef std::pair<int, std::string> P;
C c = {
P(1, "one"),
P(2, "two"),
P(3, "three"),
P(4, "four"),
P(1, "four"),
P(2, "four"),
};
assert(c.bucket_count() >= 5);
assert(c.size() == 4);
assert(c.at(1) == "one");
assert(c.at(2) == "two");
assert(c.at(3) == "three");
assert(c.at(4) == "four");
assert(c.hash_function() == test_hash<std::hash<int> >());
assert(c.key_eq() == test_compare<std::equal_to<int> >());
assert(c.get_allocator() ==
(test_allocator<std::pair<const int, std::string> >()));
assert(!c.empty());
assert(std::distance(c.begin(), c.end()) == c.size());
assert(std::distance(c.cbegin(), c.cend()) == c.size());
assert(c.load_factor() == (float)c.size()/c.bucket_count());
assert(c.max_load_factor() == 1);
}
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}