Simon Marlow wrote:
Don Stewart wrote:
* GHC.Prim was moved,
Nobody should be importing GHC.Prim, use GHC.Exts instead.
This is oft declared, but as things stand I don't think it's a tenable position. If someone's bothering to dig as far as GHC.Exts then it's very likely they're trying to optimize numeric computations and for that there are a number of functions in GHC.Prim which are essential, in particular the fast conversion functions for numeric types[1]. If those were moved to GHC.Exts then I think many people would be more inclined to heed the advice. [1] Of the many, these four especially: int2Double#, int2Float#, double2Float#, float2Double#. Though I'm sure the folks who work with Words would like to add to this list. -- Live well, ~wren