The ' ' in the parameter list represents the variadic data when the macro is invoked and the __VA_ARGS__ in the expansion represents the variadic data in the. The Microsoft C/C++ compiler (MSVC) predefines certain preprocessor macros, The predefined macros take no arguments and can't be redefined. .. length form returned by the CRT asctime function, for example, Fri 19 Aug Macros and C++ · Variadic Macros · Predefined Macros. For C a parenthesis () is empty and contains no argument. For the preprocessor it So I'm trying to get this example working in Visual Studio , but all ISEMPTY's resolve to 0. Do you have any .. __VA_ARGS__ is equal to the name of some non variadic macro. Jens Gustedt . April 12, at

ryanprichard on Feb 11, [-] It does use two other C99 features, though -- variadic macros and a for-loop-scoped variable . [-]. MSVC is a c++ compiler so you should probably just use a templated inline function. The Microsoft C/C++ compiler (MSVC) predefines certain preprocessor macros, The predefined macros take no arguments and can't be redefined. .. length form returned by the CRT asctime function, for example, Fri 19 Aug Macros and C++ · Variadic Macros · Predefined Macros. The ' ' in the parameter list represents the variadic data when the macro is invoked and the __VA_ARGS__ in the expansion represents the variadic data in the. 11/03/; 2 minutes to read; Contributors Variadic macros are function-like macros that contain a variable number of arguments. The Visual C++ implementation will suppress a trailing comma if no arguments are. Date: This is a proposal to make variadic macros easier to use with no arguments F(a, b, c), f(10, a, b, c), variable arguments are “ b, c ” .. (For the wording changes, the C++ section corresponds to the C section ). Workarounds for dealing with C++ variadic templates in Visual Studio use variadic templates are implemented using macro magic behind the. variadic macro expension not working as expected Visual C++ Args> void tryCall(ErrorCallback c, Name n, Function f, Args&& args) { try. For C a parenthesis () is empty and contains no argument. For the preprocessor it So I'm trying to get this example working in Visual Studio , but all ISEMPTY's resolve to 0. Do you have any .. __VA_ARGS__ is equal to the name of some non variadic macro. Jens Gustedt . April 12, at So I've got a macro that works nicely in GCC, but not in Microsoft's C++ . But you can work around this by not using it directly within a macro call See these URLs for details: * * style101.us /variadic- With this architecture you can define variadic macros as such. Variadic Macro is a macro that can take variable arguments. Simplest syntax is this: [code]#define FOO() printf(__VA_ARGS__) [/code]It has.