yes thanks...spot on.
the macro woz working all the way, but just the format cropping let me down.
(although I must have missed it with gdb.)
so...
printf(":: x%" UVxf " to ...", SvUV($input), $1);
does the job.
and here with a code example showing a few ugly ways to cast back pointers to all sorts...:
%typemap(in) void (* cb)(void *) , void *data , void (cb)(void *){
//if SvGETMAGIC($input) {};
$1 = INT2PTR($1_ltype, SvUV($input));
printf(":: x%" UVxf " to x%lx\n", SvUV($input), $1);
{
int ret = SWIG_ConvertFunctionPtr($input, (void**)(& $1), 0);
printf(":: to x%lx\n", $1);
}
if(SvGMAGICAL($input)) mg_get($input);
$1 = DPTR2FPTR($1_ltype, SvUV($input));
printf("::DPTR2FPTR x%lx to x%lx\n", SvIV($input), $1);
}
bot::add_idle_callback x7fc3ff9bc040 , x0
:: x7fc3ff9bc040 to x7fc3ff9bc040
:: to x7fc3ff9bc040
::DPTR2FPTR x7fc3ff9bc040 to x7fc3ff9bc040
:: x0 to x0
:: to x0
::DPTR2FPTR x0 to x0
::in c add_idle_callback xff9bc040 , x0