1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03, c++11, c++14, c++17 10 // TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed 11 // UNSUPPORTED: availability-pmr-missing 12 13 // check that functions are marked [[nodiscard]] 14 15 // [[nodiscard]] std::pmr::memory_resource::allocate(size_t, size_t); 16 // [[nodiscard]] std::pmr::polymorphic_allocator<T>::allocate(size_t, size_t); 17 18 #include <memory_resource> 19 f()20void f() { 21 std::pmr::memory_resource* res = nullptr; 22 res->allocate(0); // expected-warning {{ignoring return value of function}} 23 res->allocate(0, 1); // expected-warning {{ignoring return value of function}} 24 25 std::pmr::polymorphic_allocator<int> poly; 26 poly.allocate(0); // expected-warning {{ignoring return value of function}} 27 } 28