copy_alloc.pass.cpp revision f836d531b4146465342939fe32ae47d157ee07b2
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(const unordered_map& u, const allocator_type& a); 17 18#include <unordered_map> 19#include <string> 20#include <cassert> 21#include <cfloat> 22 23#include "../../../test_compare.h" 24#include "../../../test_hash.h" 25#include "../../../test_allocator.h" 26 27int main() 28{ 29 { 30 typedef std::unordered_map<int, std::string, 31 test_hash<std::hash<int> >, 32 test_compare<std::equal_to<int> >, 33 test_allocator<std::pair<const int, std::string> > 34 > C; 35 typedef std::pair<int, std::string> P; 36 P a[] = 37 { 38 P(1, "one"), 39 P(2, "two"), 40 P(3, "three"), 41 P(4, "four"), 42 P(1, "four"), 43 P(2, "four"), 44 }; 45 C c0(a, a + sizeof(a)/sizeof(a[0]), 46 7, 47 test_hash<std::hash<int> >(8), 48 test_compare<std::equal_to<int> >(9), 49 test_allocator<std::pair<const int, std::string> >(10) 50 ); 51 C c(c0, test_allocator<std::pair<const int, std::string> >(5)); 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> >(5))); 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} 69