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ec0c8c8603
* Introduce support for C++20 preprocessor features - add __VA_OPT__ feature to variadic macros - allow supplying 0 variadic arguments in more cases - add related unit tests
19 lines
687 B
C++
19 lines
687 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 inside itself
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// gcc detects this at definition time
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//E t_8_010.cpp(17): error: __VA_OPT__() may not contain __VA_OPT__: FOO
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#define FOO(...) BAR __VA_OPT__(__VA_OPT__(,) BAZ) BAR
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