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 23 int main() 24 { 25 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 26 { 27 typedef std::set<DefaultOnly> M; 28 typedef std::pair<M::iterator, bool> R; 29 M m; 30 assert(DefaultOnly::count == 0); 31 R r = m.emplace(); 32 assert(r.second); 33 assert(r.first == 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.second); 40 assert(r.first == m.begin()); 41 assert(m.size() == 1); 42 assert(*m.begin() == DefaultOnly()); 43 assert(DefaultOnly::count == 1); 44 } 45 assert(DefaultOnly::count == 0); 46 { 47 typedef std::set<Emplaceable> M; 48 typedef std::pair<M::iterator, bool> R; 49 M m; 50 R r = m.emplace(); 51 assert(r.second); 52 assert(r.first == m.begin()); 53 assert(m.size() == 1); 54 assert(*m.begin() == Emplaceable()); 55 r = m.emplace(2, 3.5); 56 assert(r.second); 57 assert(r.first == next(m.begin())); 58 assert(m.size() == 2); 59 assert(*r.first == Emplaceable(2, 3.5)); 60 r = m.emplace(2, 3.5); 61 assert(!r.second); 62 assert(r.first == next(m.begin())); 63 assert(m.size() == 2); 64 assert(*r.first == Emplaceable(2, 3.5)); 65 } 66 { 67 typedef std::set<int> M; 68 typedef std::pair<M::iterator, bool> R; 69 M m; 70 R r = m.emplace(M::value_type(2)); 71 assert(r.second); 72 assert(r.first == m.begin()); 73 assert(m.size() == 1); 74 assert(*r.first == 2); 75 } 76 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 77 } 78
