[Noob] Operator overloading - am I missing something?

Anders Runesson anders at runesson.info
Mon May 8 08:00:59 PDT 2006



Oh, man do I feel stupid now... :)

Thanks a lot
/Anders

Den Mon, 08 May 2006 08:58:31 -0600 skrev Hasan Aljudy:

> it's opMul not opMult
> 
> Anders Runesson wrote:
>> Hi there. 
>> I'm converting some old C code to D, but I'm stumbling on this:
>> 
>> ...
>> 
>> alias GLdouble Scalar;
>> 
>> ...
>> 
>> class Vector {
>> 	private Scalar[4] data;
>> 
>> 	...
>> 
>> 	Vector opMult(Scalar s) {
>> 	
>> 	...			
>> 	
>> 	}
>> 	
>> 	Vector opDiv(Scalar s) {
>> 		
>> 		return this * (1.0 / s); // Doesn't work
>> 		
>> 		//return this.opMult(1.0 / s); Works as I expected
>> 	}
>> 
>> 	...
>> 
>> }
>> 
>> I am trying to overload the division operator, but I can't use the
>> multiplication operator I just overloaded(or at least thought I did).
>> The compiler says 
>> 
>> vector.d(112): incompatible types for ((this) * (1 / cast(double)(s))): \
>> 'bagle.math.vector.Vector' and 'double'
>> 
>> vector.d(112): 'this' is not an arithmetic type
>> 
>> and refuses to compile the code. The commented out line works fine.
>> Why is this? I thought this.opMult(s) and this * s were synonymous?
>> 
>> I suppose I'm missing something, but from just reading the spec I couldn't
>> figure it out.
>> 
>> Thanks
>> /Anders
>> 
>>




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