22 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// UNSUPPORTED: c++03, c++11, c++14, c++1710 11// #include <memory>12 13// template<size_t N, class T>14// [[nodiscard]] constexpr T* assume_aligned(T* ptr);15 16#include <memory>17 18void f() {19 int *p = nullptr;20 std::assume_aligned<4>(p); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}21}22