18 lines
720 B
C++
18 lines
720 B
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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http://www.boost.org/
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Copyright (c) 2020 Jeff Trull. Distributed under the Boost
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Software License, Version 1.0. (See accompanying file
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LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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//O --c++20
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//O -Werror
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// test that __VA_OPT__ cannot be used in a macro definition without parens
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// gcc detects this at definition time
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//E t_8_009.cpp(17): error: __VA_OPT__ must be followed by a left paren in a C++20 variadic macro: FOO
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#define FOO(...) BAR __VA_OPT__ BAR
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