28 May
2007
28 May
'07
8:43 p.m.
bulat.ziganshin:
Hello Bryan,
Sunday, May 27, 2007, 3:30:50 AM, you wrote:
I think, given my simple algorithm that means that (==) for ByteStrings is slower than (==) for String. Is this possible?
Yes indeed. Over ByteStrings, (==) is implemented as a call to memcmp. For small strings, this loses by a large margin because it has to go through the FFI.
how about using *unsafe* memcmp import and more complex code for the case of large BS length?
a==b | min (length a) (length b) < 20 = memcmp a b ....
Good idea. I'll try to do this before the next bytestring comes out . -- Don