3c355e2881
Adding `[[nodiscard]]` to functions is a conforming extension and done extensively in the MSVC STL. Reviewed By: ldionne, EricWF, #libc Spies: #libc_vendors, cjdb, mgrang, jloser, libcxx-commits Differential Revision: https://reviews.llvm.org/D128267
22 lines
697 B
C++
22 lines
697 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// #include <memory>
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// template<size_t N, class T>
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// [[nodiscard]] constexpr T* assume_aligned(T* ptr);
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#include <memory>
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void f() {
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int *p = nullptr;
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std::assume_aligned<4>(p); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
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}
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