Re: how could I write this cpp macro

Bilgehan.Balban@xxxxxxxxx wrote:
Hi,

I'm trying to convert this:

printf("format str %s, %s", "str arg 1", "str arg 2 etc.");

to this:

printf("%s: " "format str %s, %s", __FUNCTION__, "str arg 1", "str arg2
etc.");

All sol'ns I came up had various problems in various printf formats.
The closest I had was something like:

#if DEBUG > 0
#define pdebug(fmt ...) printf("%s: " fmt, \
__FUNCTION__, __VA_ARGS__); \
#endif

But this wont work if there's a printf with no va_args, such as:

printf("fmt string and nothing else\n");

because the comma after __FUNCTION__ will be a syntax error.

Any ideas?


#define pdebug(args...) do { \
printf ("%s:", __FUNCTION__); \
printf (args); \
} while (0);

Should do what you want.

Thanks,
Bahadir

.

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