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25 lines
801 B
C++
25 lines
801 B
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// Test that _LIBCPP_NODISCARD_AFTER_CXX17 works
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// #define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]]
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// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
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// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
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#include <__config>
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_LIBCPP_NODISCARD_AFTER_CXX17 int foo() { return 6; }
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int main ()
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{
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foo(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}
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}
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