emplace.pass.cpp (1551B)
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 // UNSUPPORTED: c++98, c++03 11 12 // <list> 13 14 // template <class... Args> void emplace(const_iterator p, Args&&... args); 15 16 17 #include <list> 18 #include <cassert> 19 20 #include "test_macros.h" 21 #include "min_allocator.h" 22 23 class A 24 { 25 int i_; 26 double d_; 27 28 A(const A&); 29 A& operator=(const A&); 30 public: 31 A(int i, double d) 32 : i_(i), d_(d) {} 33 34 int geti() const {return i_;} 35 double getd() const {return d_;} 36 }; 37 38 int main() 39 { 40 { 41 std::list<A> c; 42 c.emplace(c.cbegin(), 2, 3.5); 43 assert(c.size() == 1); 44 assert(c.front().geti() == 2); 45 assert(c.front().getd() == 3.5); 46 c.emplace(c.cend(), 3, 4.5); 47 assert(c.size() == 2); 48 assert(c.front().geti() == 2); 49 assert(c.front().getd() == 3.5); 50 assert(c.back().geti() == 3); 51 assert(c.back().getd() == 4.5); 52 } 53 { 54 std::list<A, min_allocator<A>> c; 55 c.emplace(c.cbegin(), 2, 3.5); 56 assert(c.size() == 1); 57 assert(c.front().geti() == 2); 58 assert(c.front().getd() == 3.5); 59 c.emplace(c.cend(), 3, 4.5); 60 assert(c.size() == 2); 61 assert(c.front().geti() == 2); 62 assert(c.front().getd() == 3.5); 63 assert(c.back().geti() == 3); 64 assert(c.back().getd() == 4.5); 65 } 66 67 }