| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // <unordered_map> |
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| 10 | |
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| 11 | // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, |
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| 12 | // class Alloc = allocator<pair<const Key, T>>> |
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| 13 | // class unordered_map |
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| 14 | |
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| 15 | // hasher key_eq() const; |
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| 16 | |
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| 17 | #include <unordered_map> |
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| 18 | #include <string> |
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| 19 | #include <cassert> |
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| 20 | |
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| 21 | int main(int, char**) { |
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| 22 | typedef std::unordered_map<int, std::string> map_type; |
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| 23 | |
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| 24 | map_type m; |
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| 25 | std::pair<map_type::iterator, bool> p1 = m.insert(x: map_type::value_type(1, "abc" )); |
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| 26 | std::pair<map_type::iterator, bool> p2 = m.insert(x: map_type::value_type(2, "abc" )); |
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| 27 | |
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| 28 | const map_type& cm = m; |
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| 29 | |
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| 30 | assert(cm.key_eq()(p1.first->first, p1.first->first)); |
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| 31 | assert(cm.key_eq()(p2.first->first, p2.first->first)); |
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| 32 | assert(!cm.key_eq()(p1.first->first, p2.first->first)); |
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| 33 | assert(!cm.key_eq()(p2.first->first, p1.first->first)); |
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| 34 | |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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