On 04/29/2015 04:30 PM, Dennis Ritchie wrote:
> On Wednesday, 29 April 2015 at 23:22:43 UTC, Ali Çehreli wrote:
>> On 04/29/2015 04:16 PM, Ali Çehreli wrote:
>>
>>> ref CustomInteger opOpAssign(string op, T2)(T2 rhs)
>>> {
>>> static if (is (T2 == CustomInteger)) {
>>> mixin("value_ " ~ op ~ "= rhs.value_;");
>>> return this;
>>>
>>> } else {
>>> return this.opOpAssign!(op,
>>> CustomInteger)(CustomInteger(rhs));
>>
>> Playing a little more, the following shorter equivalent of the last
>> line works as well:
>>
>> return opOpAssign!op(CustomInteger(rhs));
>>
>> Ali
>
> How do I disable it?
I think I don't understand the requirements here probably because I
don't know Ada and I don't have time to even think about such a type.
Sorry. :-/
> I need to prohibit all operations to the type int.
>
> -----
> auto b = Balance(42);
>
> int t = 4;
>
> t += b; // error in compile time
That works because of 'alias this'. I would remove that line and start
adding more and more operator overloads as needed.
Ali
