select_on_container_copy_construction.pass.cpp revision ebedffde9adff4b56d3ccf6adcee8dc092404f0e
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// <memory> 11 12// template <class OuterAlloc, class... InnerAllocs> 13// class scoped_allocator_adaptor 14 15// scoped_allocator_adaptor select_on_container_copy_construction() const; 16 17#include <scoped_allocator> 18#include <cassert> 19 20#include "allocators.h" 21 22int main() 23{ 24#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 25 26 { 27 typedef std::scoped_allocator_adaptor<A1<int>> A; 28 A a1(A1<int>(3)); 29 assert(a1.outer_allocator().id() == 3); 30 A a2 = std::allocator_traits<A>::select_on_container_copy_construction(a1); 31 assert(a2.outer_allocator().id() == 3); 32 } 33 34 { 35 typedef std::scoped_allocator_adaptor<A3<int>> A; 36 A a1(A3<int>(3)); 37 assert(a1.outer_allocator().id() == 3); 38 A a2 = std::allocator_traits<A>::select_on_container_copy_construction(a1); 39 assert(a2.outer_allocator().id() == -1); 40 } 41 42 { 43 typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A; 44 A a1(A1<int>(1), A2<int>(2), A3<int>(3)); 45 assert(a1.outer_allocator().id() == 1); 46 assert(a1.inner_allocator().outer_allocator().id() == 2); 47 assert(a1.inner_allocator().inner_allocator().outer_allocator().id() == 3); 48 A a2 = std::allocator_traits<A>::select_on_container_copy_construction(a1); 49 assert(a2.outer_allocator().id() == 1); 50 assert(a2.inner_allocator().outer_allocator().id() == 2); 51 assert(a2.inner_allocator().inner_allocator().outer_allocator().id() == -1); 52 } 53 54#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 55} 56