Re: stuck on opDiv / opBinary

[Spacen Jasset via Digitalmars-d-learn]

On Sunday, 30 August 2015 at 20:09:25 UTC, Timon Gehr wrote:
On 08/30/2015 07:02 PM, Spacen Jasset wrote:
[...]

import std.math: sqrt;
import std.algorithm: map,sum,canFind;

struct Vector3{
    float[3] xyz;
    void normalise(){ this/=magnitude();  }
    float magnitude(){ return sqrt(xyz[].map!(a=>a*a).sum); }
    enum scalarOps=["*","/"];
    enum isScalarOp(string op)=scalarOps.canFind(op);
    void scalar(string op)(float scalar)if(isScalarOp!op){
        foreach(ref a;xyz) mixin(`a `~op~`=scalar;`);
    }
    Vector3 opBinary(string op)(float scalar)if(isScalarOp!op){
        Vector3 v=this;
        v.scalar!op(scalar);
        return v;
    }
    auto opOpAssign(string op)(float rhs)if(isScalarOp!op){
        return mixin(`this=this `~op~` rhs`);
    }
}

Thanks, that is interesting. I am curently porting, rather than 
trying to rewrite anything at the moment, but I will try this out 
later.