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 set 13 14 // template <class... Args> 15 // pair<iterator, bool> 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 24 int main() 25 { 26 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 27 { 28 typedef std::set<DefaultOnly> M; 29 typedef std::pair<M::iterator, bool> R; 30 M m; 31 assert(DefaultOnly::count == 0); 32 R r = m.emplace(); 33 assert(r.second); 34 assert(r.first == m.begin()); 35 assert(m.size() == 1); 36 assert(*m.begin() == DefaultOnly()); 37 assert(DefaultOnly::count == 1); 38 39 r = m.emplace(); 40 assert(!r.second); 41 assert(r.first == m.begin()); 42 assert(m.size() == 1); 43 assert(*m.begin() == DefaultOnly()); 44 assert(DefaultOnly::count == 1); 45 } 46 assert(DefaultOnly::count == 0); 47 { 48 typedef std::set<Emplaceable> M; 49 typedef std::pair<M::iterator, bool> R; 50 M m; 51 R r = m.emplace(); 52 assert(r.second); 53 assert(r.first == m.begin()); 54 assert(m.size() == 1); 55 assert(*m.begin() == Emplaceable()); 56 r = m.emplace(2, 3.5); 57 assert(r.second); 58 assert(r.first == next(m.begin())); 59 assert(m.size() == 2); 60 assert(*r.first == Emplaceable(2, 3.5)); 61 r = m.emplace(2, 3.5); 62 assert(!r.second); 63 assert(r.first == next(m.begin())); 64 assert(m.size() == 2); 65 assert(*r.first == Emplaceable(2, 3.5)); 66 } 67 { 68 typedef std::set<int> M; 69 typedef std::pair<M::iterator, bool> R; 70 M m; 71 R r = m.emplace(M::value_type(2)); 72 assert(r.second); 73 assert(r.first == m.begin()); 74 assert(m.size() == 1); 75 assert(*r.first == 2); 76 } 77 #if TEST_STD_VER >= 11 78 { 79 typedef std::set<int, std::less<int>, min_allocator<int>> M; 80 typedef std::pair<M::iterator, bool> R; 81 M m; 82 R r = m.emplace(M::value_type(2)); 83 assert(r.second); 84 assert(r.first == m.begin()); 85 assert(m.size() == 1); 86 assert(*r.first == 2); 87 } 88 #endif 89 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 90 } 91
