what is the proper way from D point of view?

struct point
{
   point opAddAssign(int i) {  x += i; y += i; return make(x,y);  }
   // --or just --
   void  opAddAssign(int i) {  x += i; y += i; }
}

( I am porting this into D
http://www.terrainformatica.com/org/gool/geometry.h )

Andrew.

Andrew Fedoniouk wrote:
> what is the proper way from D point of view?
> 
> struct point
> {
>    point opAddAssign(int i) {  x += i; y += i; return make(x,y);  }
>    // --or just --
>    void  opAddAssign(int i) {  x += i; y += i; }
> }
> 
> ( I am porting this into D
> http://www.terrainformatica.com/org/gool/geometry.h )
> 
> Andrew.
> 
> 

IMO, I prefer the former which enables chained += operations.

>> struct point
>> {
>>    point opAddAssign(int i) {  x += i; y += i; return make(x,y);  }
>>    // --or just --
>>    void  opAddAssign(int i) {  x += i; y += i; }
>> }
>>
>
> IMO, I prefer the former which enables chained += operations.

Seems like my question was not clear enough....

Question is about compiler -
what code it produces on a += b ?

Compiler may suppres returning value of opAddAssign
and make value by its own. And that is the question.

As far as I understand there are no 'this' in struct methods (why?) so I cannot effectively return something like *this from methods. Am I right?

Andrew.

Disregard my previous post.
this in struct's works. Just tested it.
Perfect.


"Andrew Fedoniouk" <news@terrainformatica.com> wrote in message news:d07d6n$1st$1@digitaldaemon.com...
>>> struct point
>>> {
>>>    point opAddAssign(int i) {  x += i; y += i; return make(x,y);  }
>>>    // --or just --
>>>    void  opAddAssign(int i) {  x += i; y += i; }
>>> }
>>>
>>
>> IMO, I prefer the former which enables chained += operations.
>
> Seems like my question was not clear enough....
>
> Question is about compiler -
> what code it produces on a += b ?
>
> Compiler may suppres returning value of opAddAssign
> and make value by its own. And that is the question.
>
> As far as I understand there are no 'this' in struct methods (why?) so I cannot effectively return something like *this from methods. Am I right?
>
> Andrew.
>
>
>
>
>
>