f836d531b4
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@145707 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <unordered_map>
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// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
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// class Alloc = allocator<pair<const Key, T>>>
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// class unordered_map
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// unordered_map(initializer_list<value_type> il);
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#include <unordered_map>
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#include <string>
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#include <cassert>
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#include <cfloat>
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#include "../../../test_compare.h"
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#include "../../../test_hash.h"
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#include "../../../test_allocator.h"
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int main()
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{
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#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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{
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typedef std::unordered_map<int, std::string,
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test_hash<std::hash<int> >,
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test_compare<std::equal_to<int> >,
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test_allocator<std::pair<const int, std::string> >
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> C;
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typedef std::pair<int, std::string> P;
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C c = {
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P(1, "one"),
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P(2, "two"),
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P(3, "three"),
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P(4, "four"),
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P(1, "four"),
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P(2, "four"),
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};
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assert(c.bucket_count() >= 5);
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assert(c.size() == 4);
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assert(c.at(1) == "one");
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assert(c.at(2) == "two");
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assert(c.at(3) == "three");
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assert(c.at(4) == "four");
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assert(c.hash_function() == test_hash<std::hash<int> >());
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assert(c.key_eq() == test_compare<std::equal_to<int> >());
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assert(c.get_allocator() ==
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(test_allocator<std::pair<const int, std::string> >()));
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assert(!c.empty());
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assert(std::distance(c.begin(), c.end()) == c.size());
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assert(std::distance(c.cbegin(), c.cend()) == c.size());
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assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
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assert(c.max_load_factor() == 1);
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}
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#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
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}
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