Manisha Mirajkar <[EMAIL PROTECTED]> writes:
>I need to convert a void *& varibale from a C function to a perl
>variable?And later use this value to call another C function.
>
>eg :
>My C functiona are - MyCFunc(void *& arg)
> - MyFuncCalled(void *p)
If they have & in then they are not C but C++ - but that is
not a big deal.
>
>XS File : void MyXSFunc()
> void *& arg
> CODE :
> MyCFunc(arg);
> MyFuncCalled(arg);
>
>How do I typemap a void*& ?
Presumably MyCFunc takes a ref because that is an output argument.
The normal way to handle void * in a typemap is to store the pointer
in an SvIV. e.g. the T_PTR type.
If you really have control over the funcs than making
that
void *
MyCFunc(void)
would be cleaner and true C not only C++.
As the C++ & is just a hidden de-ref you should be able to (almost)
ignore it for the purposes of typemaping - other than using &
in the XS and marking it as an OUTPUT.
You may need INIT or NO_INIT depending on whether it is a true
output parameter.
So something like:
void
MyCFunc(arg)
void * &arg
OUTPUT:
arg
void
MyFuncCalled(arg)
void * arg
Would map the functions directly.
--
Nick Ing-Simmons
