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 // <vector> 11 12 // template <class... Args> iterator emplace(const_iterator pos, Args&&... args); 13 14 #include <vector> 15 #include <cassert> 16 #include "../../../stack_allocator.h" 17 18 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 19 20 class A 21 { 22 int i_; 23 double d_; 24 25 A(const A&); 26 A& operator=(const A&); 27 public: 28 A(int i, double d) 29 : i_(i), d_(d) {} 30 31 A(A&& a) 32 : i_(a.i_), 33 d_(a.d_) 34 { 35 a.i_ = 0; 36 a.d_ = 0; 37 } 38 39 A& operator=(A&& a) 40 { 41 i_ = a.i_; 42 d_ = a.d_; 43 a.i_ = 0; 44 a.d_ = 0; 45 return *this; 46 } 47 48 int geti() const {return i_;} 49 double getd() const {return d_;} 50 }; 51 52 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 53 54 int main() 55 { 56 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 57 { 58 std::vector<A> c; 59 std::vector<A>::iterator i = c.emplace(c.cbegin(), 2, 3.5); 60 assert(i == c.begin()); 61 assert(c.size() == 1); 62 assert(c.front().geti() == 2); 63 assert(c.front().getd() == 3.5); 64 i = c.emplace(c.cend(), 3, 4.5); 65 assert(i == c.end()-1); 66 assert(c.size() == 2); 67 assert(c.front().geti() == 2); 68 assert(c.front().getd() == 3.5); 69 assert(c.back().geti() == 3); 70 assert(c.back().getd() == 4.5); 71 i = c.emplace(c.cbegin()+1, 4, 6.5); 72 assert(i == c.begin()+1); 73 assert(c.size() == 3); 74 assert(c.front().geti() == 2); 75 assert(c.front().getd() == 3.5); 76 assert(c[1].geti() == 4); 77 assert(c[1].getd() == 6.5); 78 assert(c.back().geti() == 3); 79 assert(c.back().getd() == 4.5); 80 } 81 { 82 std::vector<A, stack_allocator<A, 7> > c; 83 std::vector<A, stack_allocator<A, 7> >::iterator i = c.emplace(c.cbegin(), 2, 3.5); 84 assert(i == c.begin()); 85 assert(c.size() == 1); 86 assert(c.front().geti() == 2); 87 assert(c.front().getd() == 3.5); 88 i = c.emplace(c.cend(), 3, 4.5); 89 assert(i == c.end()-1); 90 assert(c.size() == 2); 91 assert(c.front().geti() == 2); 92 assert(c.front().getd() == 3.5); 93 assert(c.back().geti() == 3); 94 assert(c.back().getd() == 4.5); 95 i = c.emplace(c.cbegin()+1, 4, 6.5); 96 assert(i == c.begin()+1); 97 assert(c.size() == 3); 98 assert(c.front().geti() == 2); 99 assert(c.front().getd() == 3.5); 100 assert(c[1].geti() == 4); 101 assert(c[1].getd() == 6.5); 102 assert(c.back().geti() == 3); 103 assert(c.back().getd() == 4.5); 104 } 105 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 106 } 107
