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_set> 11 12 // template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>, 13 // class Alloc = allocator<Value>> 14 // class unordered_set 15 16 // unordered_set& operator=(initializer_list<value_type> il); 17 18 #include <unordered_set> 19 #include <cassert> 20 #include <cfloat> 21 #include <cstddef> 22 23 #include "../../../test_compare.h" 24 #include "../../../test_hash.h" 25 #include "test_allocator.h" 26 #include "min_allocator.h" 27 28 int main() 29 { 30 #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 31 { 32 typedef test_allocator<int> A; 33 typedef std::unordered_set<int, 34 test_hash<std::hash<int> >, 35 test_compare<std::equal_to<int> >, 36 A 37 > C; 38 typedef int P; 39 C c = { 40 P(4), 41 P(1), 42 P(2) 43 }; 44 c = { 45 P(1), 46 P(2), 47 P(3), 48 P(4), 49 P(1), 50 P(2) 51 }; 52 assert(c.bucket_count() >= 5); 53 assert(c.size() == 4); 54 assert(c.count(1) == 1); 55 assert(c.count(2) == 1); 56 assert(c.count(3) == 1); 57 assert(c.count(4) == 1); 58 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); 59 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); 60 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 61 assert(c.max_load_factor() == 1); 62 } 63 #if TEST_STD_VER >= 11 64 { 65 typedef min_allocator<int> A; 66 typedef std::unordered_set<int, 67 test_hash<std::hash<int> >, 68 test_compare<std::equal_to<int> >, 69 A 70 > C; 71 typedef int P; 72 C c = { 73 P(4), 74 P(1), 75 P(2) 76 }; 77 c = { 78 P(1), 79 P(2), 80 P(3), 81 P(4), 82 P(1), 83 P(2) 84 }; 85 assert(c.bucket_count() >= 5); 86 assert(c.size() == 4); 87 assert(c.count(1) == 1); 88 assert(c.count(2) == 1); 89 assert(c.count(3) == 1); 90 assert(c.count(4) == 1); 91 assert(static_cast<std::size_t>(std::distance(c.begin(), c.end())) == c.size()); 92 assert(static_cast<std::size_t>(std::distance(c.cbegin(), c.cend())) == c.size()); 93 assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON); 94 assert(c.max_load_factor() == 1); 95 } 96 #endif 97 #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS 98 } 99
