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 // <set> 11 12 // class multiset 13 14 // template <class... Args> 15 // iterator emplace(Args&&... args); 16 17 #include <set> 18 #include <cassert> 19 20 #include "../../Emplaceable.h" 21 #include "DefaultOnly.h" 22 #include "min_allocator.h" 23 main()24int main() 25 { 26 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 27 { 28 typedef std::multiset<DefaultOnly> M; 29 typedef M::iterator R; 30 M m; 31 assert(DefaultOnly::count == 0); 32 R r = m.emplace(); 33 assert(r == m.begin()); 34 assert(m.size() == 1); 35 assert(*m.begin() == DefaultOnly()); 36 assert(DefaultOnly::count == 1); 37 38 r = m.emplace(); 39 assert(r == next(m.begin())); 40 assert(m.size() == 2); 41 assert(*m.begin() == DefaultOnly()); 42 assert(DefaultOnly::count == 2); 43 } 44 assert(DefaultOnly::count == 0); 45 { 46 typedef std::multiset<Emplaceable> M; 47 typedef M::iterator R; 48 M m; 49 R r = m.emplace(); 50 assert(r == m.begin()); 51 assert(m.size() == 1); 52 assert(*m.begin() == Emplaceable()); 53 r = m.emplace(2, 3.5); 54 assert(r == next(m.begin())); 55 assert(m.size() == 2); 56 assert(*r == Emplaceable(2, 3.5)); 57 r = m.emplace(2, 3.5); 58 assert(r == next(m.begin(), 2)); 59 assert(m.size() == 3); 60 assert(*r == Emplaceable(2, 3.5)); 61 } 62 { 63 typedef std::multiset<int> M; 64 typedef M::iterator R; 65 M m; 66 R r = m.emplace(M::value_type(2)); 67 assert(r == m.begin()); 68 assert(m.size() == 1); 69 assert(*r == 2); 70 } 71 #if __cplusplus >= 201103L 72 { 73 typedef std::multiset<int, std::less<int>, min_allocator<int>> M; 74 typedef M::iterator R; 75 M m; 76 R r = m.emplace(M::value_type(2)); 77 assert(r == m.begin()); 78 assert(m.size() == 1); 79 assert(*r == 2); 80 } 81 #endif 82 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 83 } 84