On 06/01/12 19:19, Sandeep Datta wrote:
>>
>> 1. It's needed so that you can call it when calling C code.
>>
>
> Why can't we just use information from the C function signature to determine
> when an address needs to be passed? Why is manual intervention required here?
>
>> 2. Just because ref is often better than a pointer doesn't mean that it's
>> never valuable to be able to pass a pointer to a variable.
>
> Passing a pointer may be useful but IMO we should restrict such things to the
> unsafe context.
>
>>
>> 3. ref doesn't work with variadic templates very well. Take a look a
>> std.getopt.getopt. It takes pointers, not refs, and there isn't a way to make
>> it take refs.
>>
>
> Is it because getopt() is a C function? If it is see my reply to your point
> #1. I'll admit I do not know enough D to understand what you are saying, some
> explanation will be helpful.
>
>> 4. & is useful for getting function pointers.
>
> What does the function name represent when not used with an ampersand? If it
> doesn't represent anything then I think the language can be changed to yield
> an address directly without an ampersand.
>
import std.stdio;
@property f() { writeln("oops"); return 0; }
void main() { auto p = f; }
artur
