widl: initialize _RetVal to avoid compiler warnings

[Rob Shearman]

2009/2/5 Christoph von Wittich <Christoph at apiviewer.de>:
> --- a/tools/widl/proxy.c
> +++ b/tools/widl/proxy.c
> @@ -327,7 +327,12 @@ static void gen_proxy(type_t *iface, const var_t
> *func, int idx,
>   if (has_ret) {
>     print_proxy( "" );
>     write_type_decl_left(proxy, type_function_get_rettype(func->type));
> -    print_proxy( " _RetVal;\n");
> +
> +    /* Initialize _RetVal properly in order to avoid compiler warnings */
> +    if (is_ptr(type_function_get_rettype(func->type)) ||
> is_array(type_function_get_rettype(func->type)))
> +      print_proxy(" _RetVal = NULL;\n");
> +    else
> +      print_proxy(" _RetVal = 0;\n");
>   }
>   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
>   if (has_ret) {

I think this is just hiding the problem. Can you give an example of
IDL which causes widl to generate code that causes compiler warnings?

-- 
Rob Shearman