1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <unordered_map> 11 12 // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, 13 // class Alloc = allocator<pair<const Key, T>>> 14 // class unordered_map 15 16 // size_type bucket_size(size_type n) const 17 18 #ifdef _LIBCPP_DEBUG 19 #define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : std::exit(0)) 20 #endif 21 22 #include <unordered_map> 23 #include <string> 24 #include <cassert> 25 26 #include "min_allocator.h" 27 28 int main() 29 { 30 { 31 typedef std::unordered_map<int, std::string> C; 32 typedef std::pair<int, std::string> P; 33 P a[] = 34 { 35 P(1, "one"), 36 P(2, "two"), 37 P(3, "three"), 38 P(4, "four"), 39 P(1, "four"), 40 P(2, "four"), 41 }; 42 const C c(std::begin(a), std::end(a)); 43 assert(c.bucket_count() >= 5); 44 assert(c.bucket_size(0) == 0); 45 assert(c.bucket_size(1) == 1); 46 assert(c.bucket_size(2) == 1); 47 assert(c.bucket_size(3) == 1); 48 assert(c.bucket_size(4) == 1); 49 } 50 #if __cplusplus >= 201103L 51 { 52 typedef std::unordered_map<int, std::string, std::hash<int>, std::equal_to<int>, 53 min_allocator<std::pair<const int, std::string>>> C; 54 typedef std::pair<int, std::string> P; 55 P a[] = 56 { 57 P(1, "one"), 58 P(2, "two"), 59 P(3, "three"), 60 P(4, "four"), 61 P(1, "four"), 62 P(2, "four"), 63 }; 64 const C c(std::begin(a), std::end(a)); 65 assert(c.bucket_count() >= 5); 66 assert(c.bucket_size(0) == 0); 67 assert(c.bucket_size(1) == 1); 68 assert(c.bucket_size(2) == 1); 69 assert(c.bucket_size(3) == 1); 70 assert(c.bucket_size(4) == 1); 71 } 72 #endif 73 #if _LIBCPP_DEBUG_LEVEL >= 1 74 { 75 typedef std::unordered_map<int, std::string> C; 76 C c; 77 C::size_type i = c.bucket_size(3); 78 assert(false); 79 } 80 #endif 81 } 82
