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 // class unordered_map 13 14 // size_type max_size() const; 15 16 #include <cassert> 17 #include <limits> 18 #include <type_traits> 19 #include <unordered_map> 20 21 #include "test_allocator.h" 22 #include "test_macros.h" 23 24 int main() 25 { 26 typedef std::pair<const int, int> KV; 27 { 28 typedef limited_allocator<KV, 10> A; 29 typedef std::unordered_map<int, int, std::hash<int>, std::equal_to<int>, A> 30 C; 31 C c; 32 assert(c.max_size() <= 10); 33 LIBCPP_ASSERT(c.max_size() == 10); 34 } 35 { 36 typedef limited_allocator<KV, (size_t)-1> A; 37 typedef std::unordered_map<int, int, std::hash<int>, std::equal_to<int>, A> 38 C; 39 const C::difference_type max_dist = 40 std::numeric_limits<C::difference_type>::max(); 41 C c; 42 assert(c.max_size() <= max_dist); 43 LIBCPP_ASSERT(c.max_size() == max_dist); 44 } 45 { 46 typedef std::unordered_map<char, int> C; 47 const C::difference_type max_dist = 48 std::numeric_limits<C::difference_type>::max(); 49 C c; 50 assert(c.max_size() <= max_dist); 51 assert(c.max_size() <= alloc_max_size(c.get_allocator())); 52 } 53 } 54
