[cvs-nhc98] cvs commit: nhc98/src/prelude/Prelude Floating_Double.hs Floating_Float.hs

[Malcolm Wallace]

malcolm     2004/10/05 11:54:17 PDT

  Modified files:
    src/prelude/Prelude  Floating_Double.hs Floating_Float.hs 
  Log:
  The default definition of (**) in class Floating loses precision.
  In particular, many calculations incorrectly have result NaN.
  The fix is to use the C library function pow() instead, and hook
  it into nhc98 as a new bytecode instruction.
  
  Revision  Changes    Path
  1.5       +2 -0      nhc98/src/prelude/Prelude/Floating_Double.hs
  1.6       +1 -0      nhc98/src/prelude/Prelude/Floating_Float.hs