Detecting invalid floats

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1 total messages Started by Jim Bittman Sun, 29 Jul 1990 18:09

#1021

Author: Jim Bittman
Date: Sun, 29 Jul 1990 18:09

10 lines
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Can anyone tell me of a reliable way of determining invalid
floating point numbers (single or double precision)?  
I'm convinced it is possible since
Borland's debugger just prints "NAN" for this case.

I would appreciate any information, pointers to information, or code in
Turbo C, Microsoft C, or Turbo Pascal.

Thank you all.
Jim Bittman, jmbj@grebyn.com

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