Setting a flag in compiler for NSLog not to show

Question

Is there any particular flag which can be set to not display NSLog output in either debug or release?

Thanks.

Answer 1

Adding this b/c none of the answers seem to address warnings you may have (depending on project settings) with some of these approaches.

This is the only way I could find to suppress NSLog without getting any warnings. Otherwise I get a ton with the settings we use (warn on unused variables).

#undef NSLog

#define NSLog(fmt, ...) if (0) { printf("%s", [[NSString stringWithFormat:fmt, ##__VA_ARGS__] UTF8String]); }

Then all you need to do is put that in whatever pch file you use for your release builds or wherever you want to suppress the logs.

Credit to @Hot Licks for the example of how to make the variable "used".