input validation

[Andrei Alexandrescu]

bearophile wrote:
> Andrei Alexandrescu:
>> int[] a = [ 1, 2, 3, 4 ];
>> int[] b = [ 2. 3 ];
> 
> I guess you meant:
> 
> int[] b = [ 2, 3 ];
> 
>> find(a, b);
>> find(assumeSorted(a), b);
>> find(a, assumeSorted(b));
>> find(assumeSorted(a), assumeSorted(b));
>> find(a, boyerMooreFinder(b));
> 
> Are you talking about finding the position of a subarray into a bigger array? Then the two useful cases are:
> a.index(b);
> a.indexBoyerMoore(b);
> The other cases aren't common enough, I think.
> 
> Bye,
> bearophile

Binary search is rather common.

As an aside, your use of "index" suggests you return integrals out of 
the function. IMHO that's strongly unrecommended.


Andrei