/* Copyright 2020 Glen Joseph Fernandes (glenjofe@gmail.com) Distributed under the Boost Software License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt) */ #include #include template struct A1 { typedef T value_type; A1() { } }; #if !defined(BOOST_NO_CXX11_ALLOCATOR) template struct A2 { typedef T value_type; A2() { } template void construct(U* p, const V& v) { ::new((void*)p) U(v + 1); } }; #endif int main() { { A1 a; int i = 0; boost::allocator_construct(a, &i, 5); BOOST_TEST_EQ(i, 5); } #if !defined(BOOST_NO_CXX11_ALLOCATOR) { A1 a; int i = 0; boost::allocator_construct(a, &i, 5); BOOST_TEST_EQ(i, 6); } #endif return boost::report_errors(); }