[Sbcl-devel] log declaration patch/irrat.lisp

[Martin A. <ma...@at...>]

I've ported the "irrat" patch from cmucl, based on a
patch by Ray Toy on cmucl-imp 2001-04-12:

The original message was:
"Appended is a patch for irrat.lisp that

o Fixes the declaration bug in complex-log-scaled
o Removes the old special function routines
o Adds logb-finite to help optimize the use of logb
o Removes some unneeded declarations since the compiler is smarter now
  than when this was originally written.
o Added inhibit-warnings to coerce-to-complex-type since their
  unavoidable. 
o The cores of some routines are compiled with speed 3 and space 0 to
  get some maybe-inline routines inlined.

Some of the speed 3 stuff might be gratuitous, but I use complex
numbers everywhere in my work, so I want these routines to be
fast. :-)

There appears to be one small bug in complex-tanh where I needed to
declare some variables.  Otherwise the compiler dies on an underflow
for some reason.  Need to look into that."

---

Since  some functions were rewritten in that process, I've made up
some code to test these.
The attached test-code could maybe be a starting point for
a "math-functions" test, or such.

Cheers,

Martin
-- 
Martin Atzmueller <ma...@at...>