Re: Suppressing floating point errors in C

Thread View: comp.sys.acorn.tech

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1 total messages Started by Paul Moore Sat, 09 Jan 1993 10:49

#868

Author: Paul Moore
Date: Sat, 09 Jan 1993 10:49

18 lines
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mckay_g@kosmos.wcc.govt.nz ("Rob") writes (regarding my problem of being
able to ignore SIGFPE in C):
 
  > The way I would overcome this problem is to change the FPU
  > status/control register to prevent what ever type of FP
  > errors you wish to ignore.
 
The problem is that there is a BUG in the FP emulator, which means that
funny things happen when you try to work with infinity/NaN (which is what
generates the SIGFPE). As a consequence, setting the FP status/control
register does not work properly (in the "proper" program where I need to do
this - I have not actually tried it for this test case).
 
I posted the FPE bug report on csa.tech, and I have sent it to Acorn, but I
know of no work-around yet. (I won't re-post it here as it's long - Email me
if you missed it and want to see a copy).
 
Gustav.

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