Question

I need to have function name. I have done two procedures to print it’s name:
Using macro:

define LogFnc(info) do {cout<<"=FUNCTION= "<info ; } while(0)

and using function:

void LogFnc(string info)
{
    cout<<"=FUNCTION= "<<info;
}

Procedure that calls one of those possibilities:

int main() {
    LogFnc(__FUNCTION__);
}

Why in case I use macro (firs one) no function name is printed?

Answer 1

you forgot one bracket in cout<<“=FUNCTION= ” << info

#define LogFnc(info) cout<<"=FUNCTION= " << info ; 

Let me say moreover that your false loop do{...}while(0) is ugly, non intuitive, and counter-productive.