init_size_hash_equal_allocator.pass.cpp revision 061d0cc4db18d17bf01ed14c5db0be098205bd47
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// unordered_map(initializer_list<value_type> il, size_type n, 17// const hasher& hf, const key_equal& eql, const allocator_type& a); 18 19#include <unordered_map> 20#include <string> 21#include <cassert> 22#include <cfloat> 23 24#include "../../../test_compare.h" 25#include "../../../test_hash.h" 26#include "../../../test_allocator.h" 27#include "min_allocator.h" 28 29int main() 30{ 31#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 32 { 33 typedef std::unordered_map<int, std::string, 34 test_hash<std::hash<int> >, 35 test_compare<std::equal_to<int> >, 36 test_allocator<std::pair<const int, std::string> > 37 > C; 38 typedef std::pair<int, std::string> P; 39 C c({ 40 P(1, "one"), 41 P(2, "two"), 42 P(3, "three"), 43 P(4, "four"), 44 P(1, "four"), 45 P(2, "four"), 46 }, 47 7, 48 test_hash<std::hash<int> >(8), 49 test_compare<std::equal_to<int> >(9), 50 test_allocator<std::pair<const int, std::string> >(10) 51 ); 52 assert(c.bucket_count() == 7); 53 assert(c.size() == 4); 54 assert(c.at(1) == "one"); 55 assert(c.at(2) == "two"); 56 assert(c.at(3) == "three"); 57 assert(c.at(4) == "four"); 58 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 59 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 60 assert(c.get_allocator() == 61 (test_allocator<std::pair<const int, std::string> >(10))); 62 assert(!c.empty()); 63 assert(std::distance(c.begin(), c.end()) == c.size()); 64 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 65 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 66 assert(c.max_load_factor() == 1); 67 } 68#if __cplusplus >= 201103L 69 { 70 typedef std::unordered_map<int, std::string, 71 test_hash<std::hash<int> >, 72 test_compare<std::equal_to<int> >, 73 min_allocator<std::pair<const int, std::string> > 74 > C; 75 typedef std::pair<int, std::string> P; 76 C c({ 77 P(1, "one"), 78 P(2, "two"), 79 P(3, "three"), 80 P(4, "four"), 81 P(1, "four"), 82 P(2, "four"), 83 }, 84 7, 85 test_hash<std::hash<int> >(8), 86 test_compare<std::equal_to<int> >(9), 87 min_allocator<std::pair<const int, std::string> >() 88 ); 89 assert(c.bucket_count() == 7); 90 assert(c.size() == 4); 91 assert(c.at(1) == "one"); 92 assert(c.at(2) == "two"); 93 assert(c.at(3) == "three"); 94 assert(c.at(4) == "four"); 95 assert(c.hash_function() == test_hash<std::hash<int> >(8)); 96 assert(c.key_eq() == test_compare<std::equal_to<int> >(9)); 97 assert(c.get_allocator() == 98 (min_allocator<std::pair<const int, std::string> >())); 99 assert(!c.empty()); 100 assert(std::distance(c.begin(), c.end()) == c.size()); 101 assert(std::distance(c.cbegin(), c.cend()) == c.size()); 102 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 103 assert(c.max_load_factor() == 1); 104 } 105#endif 106#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 107} 108