At 2001-10-24 07:39:45, [EMAIL PROTECTED] wrote: > > Is it possible to code a homegrown va_list (that my vararg C function > will accept) in the perl XS code (without using the stdarg.h macros > that are giving me compilation problems)?
No. A C function with a "..." prototype may be called with a varying number of arguments on the stack. It is left to the compiler to retrieve these arguments and compose them into va_lists (and different compilers do it differently). In contrast, an XS function with a "..." prototype may be called with a varying number of arguments on the Perl argument stack, but it is still called only with a fixed number of arguments on the system stack. (Have a look at the .c file which xsubpp generates.) This is why the va_list approach didn't work in your code. There is no nice way to compose va_lists by hand. Sorry. - ams
