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 // <list> 11 12 // template <class... Args> void emplace_front(Args&&... args); 13 14 #include <list> 15 #include <cassert> 16 17 #include "min_allocator.h" 18 19 class A 20 { 21 int i_; 22 double d_; 23 24 A(const A&); 25 A& operator=(const A&); 26 public: 27 A(int i, double d) 28 : i_(i), d_(d) {} 29 30 int geti() const {return i_;} 31 double getd() const {return d_;} 32 }; 33 34 int main() 35 { 36 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 37 { 38 std::list<A> c; 39 c.emplace_front(2, 3.5); 40 assert(c.size() == 1); 41 assert(c.front().geti() == 2); 42 assert(c.front().getd() == 3.5); 43 c.emplace_front(3, 4.5); 44 assert(c.size() == 2); 45 assert(c.front().geti() == 3); 46 assert(c.front().getd() == 4.5); 47 assert(c.back().geti() == 2); 48 assert(c.back().getd() == 3.5); 49 } 50 #if __cplusplus >= 201103L 51 { 52 std::list<A, min_allocator<A>> c; 53 c.emplace_front(2, 3.5); 54 assert(c.size() == 1); 55 assert(c.front().geti() == 2); 56 assert(c.front().getd() == 3.5); 57 c.emplace_front(3, 4.5); 58 assert(c.size() == 2); 59 assert(c.front().geti() == 3); 60 assert(c.front().getd() == 4.5); 61 assert(c.back().geti() == 2); 62 assert(c.back().getd() == 3.5); 63 } 64 #endif 65 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 66 } 67
