function with is own lamda expression

[bioinfornatics]

On Sunday, 1 December 2013 at 08:22:41 UTC, Ali Çehreli wrote:
> On 11/30/2013 05:53 PM, bioinfornatics wrote:
>
> > I write a function with Lambda expression + safe + pure wich
> do same
> > (close) as countUntil
> >
> > http://www.dpaste.dzfl.pl/63d03540
> >
> > but i fail to use lambda expression into my function. I try
> by two way
> > - alias this pred … (to get a default lambda)
> > - function(…) pred
> >
> > both way i fail, could you take a look to code please.
> >
> > Goal is to get a pure and safe function
> >
> > thanks
>
> The obvious problem in the code is the fact that although the 
> intent and the lambda expression itself is written to take two 
> parameters, the lambda is called without any arguments:
>
> 1) The default lambda takes two parameters:
>
>   auto search( alias pred = (a,b) => a == b, R,T,S=T)( const 
> ref R toSearch, in T toMatch ) pure
>
> 2) and the provided lambda takes two parameters:
>
> 	assert( arrStruct.search!( (a,b) => a.id == b )( 8uL ) == 7 );
>
> 3) However, the call itself takes no arguments:
>
>               if( pred() ){
>
> So, I would start with that call to debug and pass the two 
> arguments that are appropriate (toSearch.front and toMatch, 
> perhaps?)
>
> Ali

Thanks Ali,

that works now, i was close. http://www.dpaste.dzfl.pl/63d03540