Simon Marlow wrote:
Neil Mitchell wrote:
Yes, or just don't use string gaps. ++ works just as well, and GHC will optimise it away when applied to constant strings.
There are also other issues, such as ' in variable names (can cause bits to be skipped in that line), /* as an operator, unboxed varids in #define's
Yes, sure. (although the ' thing doesn't bite us
it seems to have bitten at least at one time: there is a workaround in Data.Bits (see "wsib") : (I# x#) `rotate` (I# i#) = I# (word2Int# ((x'# `uncheckedShiftL#` i'#) `or#` (x'# `uncheckedShiftRL#` (wsib -# i'#)))) where x'# = int2Word# x# i'# = word2Int# (int2Word# i# `and#` int2Word# (wsib -# 1#)) wsib = WORD_SIZE_IN_BITS# {- work around preprocessor problem (??) -} Isaac