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c++ macro

Started by Zische Apr 21, 2006 at 2:47 PM 3 replies 550+ views

Original Post

Apr 21, 2006 at 2:47 PM

Hi, I need a macro like this: #define testmacro(message) f("message") void f(const char* m) { // do some stuff... } When I run this macro with testmacro(hello) it calls f("message"). Is it possible to get a macro which calls f("hello") ?? I don't want to call the macro via testmacro("hello").

Zakwayda

1,120

Zakwayda

Apr 21, 2006 at 2:51 PM

I can't remember for sure (and I'm too lazy to look it up at the moment), but you might be looking for this:

#define testmacro(message) f(#message)

However, you might consider whether a macro is the best solution for what you're trying to do.

blaze02

Apr 21, 2006 at 2:52 PM

Thats because you are telling it to call f("message") :)
Try f(message) without the quotes. If you put quotes around your variable name, it will think its a string (quote) instead of a variable.

Zische

Author

Zische

Apr 21, 2006 at 2:55 PM

thanks, it works!

Zische

Author

Zische

Apr 21, 2006 at 2:58 PM

i mean jyk's solution works
#define testmacro(message) f(#message)

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