bolt/deps/llvm-18.1.8/libcxx/test/std/utilities/utility/mem.res/nodiscard.verify.cpp

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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// TODO: Change to XFAIL once https://github.com/llvm/llvm-project/issues/40340 is fixed
// UNSUPPORTED: availability-pmr-missing
// check that functions are marked [[nodiscard]]
// [[nodiscard]] std::pmr::memory_resource::allocate(size_t, size_t);
// [[nodiscard]] std::pmr::polymorphic_allocator<T>::allocate(size_t, size_t);
#include <memory_resource>
void f() {
std::pmr::memory_resource* res = nullptr;
res->allocate(0); // expected-warning {{ignoring return value of function}}
res->allocate(0, 1); // expected-warning {{ignoring return value of function}}
std::pmr::polymorphic_allocator<int> poly;
poly.allocate(0); // expected-warning {{ignoring return value of function}}
}