#define FNAME

[ralphtan]

Hi,
recently I encounter some of my ex-colleagues codes that use this:

my question is what is the usage of #define FNAME "ABC" in this case?

Thanks.

/********/

#define FNAME "ABC"

void ABC(int a, float b){
...
}

#undef FNAME
/*********/

 

[butthead]

#define FNAME "ABC"

is a constant character string.

Not related to function ABC ();

maybe used in the bowels of ABC ();

tomcruz.net

 

[isaisa]

hi ralphtan,

In the code you have given, #define plays no role as it is not used anywhere.

Thanks,
Sanjay

 

[ralphtan]

Thanks guys.

 

[xwb]

It is probably used in tracing. The TRACE macro may be defined as something like

#define TRACE(x) fprintf(stderr,"%s: %s=%d\n", FNAME, #x, x)

It is possible that all the TRACE statements in the code have been removed. However, when it was being developed they might have stuck

TRACE(fred);

into the code. Since fred was probably defined all over the place, knowing which routine it came from would have helped in debugging. I wouldn't remove them because if you want to use the TRACE macro in the future, you will have to stick them back in.