| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <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 |
| |
| // size_type bucket(const key_type& __k) const; |
| |
| #ifdef _LIBCPP_DEBUG |
| #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0)) |
| #endif |
| |
| #include <unordered_map> |
| #include <string> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "min_allocator.h" |
| |
| int main(int, char**) |
| { |
| { |
| typedef std::unordered_map<int, std::string> C; |
| typedef std::pair<int, std::string> P; |
| P a[] = |
| { |
| P(1, "one"), |
| P(2, "two"), |
| P(3, "three"), |
| P(4, "four"), |
| P(1, "four"), |
| P(2, "four"), |
| }; |
| const C c(std::begin(a), std::end(a)); |
| size_t bc = c.bucket_count(); |
| assert(bc >= 5); |
| for (size_t i = 0; i < 13; ++i) |
| LIBCPP_ASSERT(c.bucket(i) == i % bc); |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| typedef std::unordered_map<int, std::string, std::hash<int>, std::equal_to<int>, |
| min_allocator<std::pair<const int, std::string>>> C; |
| typedef std::pair<int, std::string> P; |
| P a[] = |
| { |
| P(1, "one"), |
| P(2, "two"), |
| P(3, "three"), |
| P(4, "four"), |
| P(1, "four"), |
| P(2, "four"), |
| }; |
| const C c(std::begin(a), std::end(a)); |
| size_t bc = c.bucket_count(); |
| assert(bc >= 5); |
| for (size_t i = 0; i < 13; ++i) |
| LIBCPP_ASSERT(c.bucket(i) == i % bc); |
| } |
| #endif |
| #if _LIBCPP_DEBUG_LEVEL >= 1 |
| { |
| typedef std::unordered_map<int, std::string> C; |
| C c; |
| (void) c.bucket(3); |
| assert(false); |
| } |
| #endif |
| |
| return 0; |
| } |