chang@osc.COM (Lai-Chang Woo) (03/01/91)
My problem is that I need the ANSI-style definitions in <stdarg.h> for C++
functions, but Ultrix 4.0 cc only works with <varargs.h>. Needless to say,
the two files are nothing like each other. I thought of producing some sort
of hybrid, but some experimentation led to the discovery that when the
all-powerful va_alist is not included in the argument list of the called
routine, the variable arguments from the calling routine are not even pushed
onto the stack! To illustrate:
-----
void func ( argA, argB /* , va_alist */ )
char *argA;
char *argB;
/* int va_alist; */
{
.
.
.
}
main ()
{
.
.
func ( "hello", "world", "variable", "part" );
.
.
}
-----
when run under dbx, does not show up "variable" or "part", or any pointer to
them, anywhere on the stack.
But I can't include va_alist in the C++ function declaration, and my C++
translator (AT&T version 2.0, btw) doesn't insert it for me either. Short
of fixing the translator, how can I get around this? Has anyone successfully
produced a hybrid header file that works under the circumstances?
Currently I fix the C output of the translator by hand, but that is painful
to say the least, so any help would be most appreciated. Please email replies
to chang%osc.osc.com@uunet.uu.net. I'll post a summary if anyone requests it.
Thanks in advance.
Lai-Chang Woo
Versant Object Technology