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libcxx_old/test/libcxx/diagnostics/nodiscard_aftercxx17.pass.cpp

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C++

// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Test that _LIBCPP_NODISCARD_AFTER_CXX17 is disabled whenever
// _LIBCPP_DISABLE_NODISCARD_AFTER_CXX17 is defined by the user.
// MODULES_DEFINES: _LIBCPP_DISABLE_NODISCARD_AFTER_CXX17
#define _LIBCPP_DISABLE_NODISCARD_AFTER_CXX17
#include <__config>
_LIBCPP_NODISCARD_AFTER_CXX17 int foo() { return 6; }
int main ()
{
foo(); // no error here!
}