Function
hash2Upper
Computes an upper unique hash value of a shape applied to a sequence, even if the sequence is shorter than the shape span.
Parameters
|  Shape to be used for hashing. Types:  Shape | |
|  Sequence iterator pointing to the first character of the shape. | |
|  The distance of  | 
Remarks
 This function in conjunction with hash2 is useful to search a q-gram index for p-grams with p<q.
Return Values
 Upper hash value of the shape.
The hash value corresponds to the maximal hash2 value of a shape beginning with the min(charsLeft,length(shape))  characters + 1
See Also
SeqAn - Sequence Analysis Library - www.seqan.de