Mathematical functions_(re)

Sat, 9 Aug 1997 12:06:37 +0200 (MEST)

According to Jan-Jaap van der Heijden:
> 
> `sin()' is not doing any checking, so you could replace it
> right away. But there are other functions that do some checking before
> calling the underlying OS function (like `ln')
> 
> GCC knows an optimzation switch -ffast-math, [...]

What about this:

For gpc-2.1:  Drop `sin()' (without any alias) and other non-checking
  functions, but keep the `_p_foo()' variants for functions that *do*
  some checking.

For gpc-2.2:  Drop the `_p_foo()' versions of all mathematical functions
  but those not supported by the OS (read: by `libc.a') and do the checking
  inline.  Make `--fast-math' turn out the checking.  (Things like this
  can be faced together with range checking in general.)

    Peter

 Dipl.-Phys. Peter Gerwinski, Essen, Germany, free physicist and programmer
peter.gerwinski@uni-essen.de - http://home.pages.de/~peter.gerwinski/ [970201]
 maintainer GNU Pascal [970714] - http://home.pages.de/~gnu-pascal/ [970125]

Peter Gerwinski (peter@agnes.dida.physik.NO-SPAM-PLEASE.de)