Does DMD unroll loops?

[Daniel Keep]

Jascha Wetzel wrote:
> is there a way to make DMD unroll loops?
> i can use mixins instead, but it's ugly...
> 
> struct Vec(T,int dim)
> {
>   alias Vec!(T,dim) vec_t;
> 
>   T[dim] data;
> 
>   void opAddAssign(vec_t v)
>   {
>     foreach ( int i, inout d; data )
>       d += v.data[i];
>     // alternatively:
>     // for ( int i = 0; i < dim; ++i )
>     //  data[i] += v.data[i];
>   }
> }

> template Tuple(T...)
> {
>     alias T Tuple;
> }
>
> template Range(int n)
> {
>     static if( n < 1 )
>         alias Tuple!() Range;
>     else
>         alias Tuple!(Range!(n-1), n) Range;
> }
>
> struct Vec(T,int dim)
> {
>   alias Vec!(T,dim) vec_t;
>
>   T[dim] data;
>
>   void opAddAssign(vec_t v)
>   {
>     // foreach ( int i, inout d; data )
>     //   d += v.data[i];
>     // alternatively:
>     // for ( int i = 0; i < dim; ++i )
>     //  data[i] += v.data[i];
>     foreach( i ; Range!(dim) )
>       data[i] += v.data[i];
>   }
> }

Note: not tested, but you should be able to do something like the
above... :P

	-- Daniel

-- 
Unlike Knuth, I have neither proven or tried the above; it may not even
make sense.

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