Date: Fri, 25 Feb 2000 18:24:32 -0800 From: Marco Molteni <molter@csl.sri.com> To: freebsd-chat@freebsd.org Subject: how to do this C preprocessor trick? Message-ID: <20000225182432.A5017@sofia.csl.sri.com>
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Hi all,
I have a function that takes a variable number of arguments:
void d_printf(const char *format, ...)
I would like to make it print automatically the function name
from which it is called, eg instead of doing
f() { d_printf("f: blabla", x, y, z); }
doing simply
f() { d_printf("blabla", x, y, z); }
To do that, I though of wrapping d_printf() around a macro like
#define dprintf(x) d_printf(__FUNCTION__, x)
but whatever combination I use (also with #), the thing is not going to work:
main.c:231: macro `d_printf' used with too many (4) args
Is it possible to trick the C preprocessor to do what I want?
Thanks
Marco
--
Marco Molteni "rough consensus and running code"
SRI International, System Design Laboratory
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