borrowed pointers vs ref

[Walter Bright via Digitalmars-d]

On 5/14/2014 12:29 AM, Idan Arye wrote:
> On Tuesday, 13 May 2014 at 17:44:02 UTC, Walter Bright wrote:
>> On 5/13/2014 6:50 AM, Dicebot wrote:
>>> Walter's initial post implies that he wanted to re-used `ref` for borrowed
>>> pointer (which would mean same semantics as `scope` parameter qualifier)
>>
>> 'ref' already is to much extent, for example:
>>
>>   @safe int foo(ref int x) {
>>     auto a = &x;
>>     return 3;
>>   }
>>
>> dmd foo -c
>> foo.d(4): Error: cannot take address of parameter x in @safe function foo
>
> This has nothing to do with `ref`. If you remove the `ref` you get the exact
> same error.

Right, but the thing is, the only address of a local/parameter you can take is 
by ref, not &.