1 /*============================================================================= 2 Boost.Wave: A Standard compliant C++ preprocessor library 3 http://www.boost.org/ 4 5 Copyright (c) 2020 Jeff Trull. Distributed under the Boost 6 Software License, Version 1.0. (See accompanying file 7 LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 8 =============================================================================*/ 9 10 //O --c++11 11 //O -Werror 12 13 // test that arg list after named args CANNOT be empty (in c++11 mode) 14 15 #define ok_to_be_empty(BASE, ...) __VA_ARGS__##BASE##__VA_ARGS__ 16 17 //R #line 19 "t_8_003.cpp" 18 //R notemptyfillernotempty 19 ok_to_be_empty(filler, notempty) 20 21 //E t_8_003.cpp(22): warning: too few macro arguments: ok_to_be_empty 22 ok_to_be_empty(filler) 23