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 // <forward_list> 11 12 // void pop_front(); 13 14 #include <forward_list> 15 #include <cassert> 16 17 #include "../../../MoveOnly.h" 18 #include "../../../min_allocator.h" 19 20 int main() 21 { 22 { 23 typedef int T; 24 typedef std::forward_list<T> C; 25 typedef std::forward_list<T> C; 26 C c; 27 c.push_front(1); 28 c.push_front(3); 29 c.pop_front(); 30 assert(distance(c.begin(), c.end()) == 1); 31 assert(c.front() == 1); 32 c.pop_front(); 33 assert(distance(c.begin(), c.end()) == 0); 34 } 35 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 36 { 37 typedef MoveOnly T; 38 typedef std::forward_list<T> C; 39 C c; 40 c.push_front(1); 41 c.push_front(3); 42 c.pop_front(); 43 assert(distance(c.begin(), c.end()) == 1); 44 assert(c.front() == 1); 45 c.pop_front(); 46 assert(distance(c.begin(), c.end()) == 0); 47 } 48 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 49 #if __cplusplus >= 201103L 50 { 51 typedef int T; 52 typedef std::forward_list<T, min_allocator<T>> C; 53 typedef std::forward_list<T, min_allocator<T>> C; 54 C c; 55 c.push_front(1); 56 c.push_front(3); 57 c.pop_front(); 58 assert(distance(c.begin(), c.end()) == 1); 59 assert(c.front() == 1); 60 c.pop_front(); 61 assert(distance(c.begin(), c.end()) == 0); 62 } 63 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 64 { 65 typedef MoveOnly T; 66 typedef std::forward_list<T, min_allocator<T>> C; 67 C c; 68 c.push_front(1); 69 c.push_front(3); 70 c.pop_front(); 71 assert(distance(c.begin(), c.end()) == 1); 72 assert(c.front() == 1); 73 c.pop_front(); 74 assert(distance(c.begin(), c.end()) == 0); 75 } 76 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 77 #endif 78 } 79
