Simpler NSLog macro

using iphone sdk 4.0 I want to remove the function name stuff from this macro but am struggling

#define LOG(fmt, ...) NSLog((@"%s " fmt), __PRETTY_FUNCTION__,##__VA_ARGS__)

i tried

#define LOG(fmt, ...) NSLog((@"%s " fmt), ##__VA_ARGS__)

but this results in a crash!!

开发者_如何学运维

I want to be able to log like this

LOG("text to log");
LOG("text to log with param %d", param); etc

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Why not simply like this ?

#define LOG(fmt, ...) NSLog(fmt, ##__VA_ARGS__)

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I think you want this

#define Log(fmt, ...) NSLog(fmt, ##__VA_ARGS__);

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You should wrap your log macro in a do{ }while(0); statement to avoid possibility of errors with if statements

see

do { ... } while (0) — what is it good for?