[Haskell-cafe] ieee 754

[Henning Thielemann]

On Sun, 22 Jun 2008, Lennart Augustsson wrote:

> Haskell does not allow you to change rounding mode, NaN signallng mode, etc.
> But otherwise Haskell on modern platforms conforms to IEEE 754.

It just uses the machine floating point implementation, which is most 
oftenly IEEE. However the good news are - if someone manually writes 
functions for IEEE number representation, they could be used exactly the 
same way as Float and Double, and chances are good that with some 
optimizer RULES the operations can be replaced by efficient FPU operations 
on IEEE compliant FPUs.