X-Authentication-Warning: delorie.com: mail set sender to djgpp-workers-bounces using -f From: Kbwms AT aol DOT com Message-ID: <140.222e4448.2d628726@aol.com> Date: Mon, 16 Feb 2004 15:50:46 EST Subject: Re: C99 Functions Under Development and Checkout To: djgpp-workers AT delorie DOT com MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_140.222e4448.2d628726_boundary" X-Mailer: 8.0 for Windows sub 6021 Reply-To: djgpp-workers AT delorie DOT com --part1_140.222e4448.2d628726_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/16/2004 3:44:29 PM Eastern Standard Time, rudd AT cyberoptics DOT com writes: > When I run my 2-D FFT routines, the > most obvious indication that I have a stray NaN in the array is an > agonizingly-slow execution, since the NaN rapidly infests the entire array. > As you know, NaNs often crop up at the least expected times. It could well be worth the effort to test for a NaN result after each computation or series of computations. KB Williams --part1_140.222e4448.2d628726_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable In a message dated 2/16/2004 3:44:29=20= PM Eastern Standard Time, rudd AT cyberoptics DOT com writes:

When I run my 2-D FFT routines= , the
most obvious indication that I have a stray NaN in the array is an
agonizingly-slow execution, since the NaN rapidly infests the entire array.<= BR>

<= BR> As you know, NaNs often crop up at the least expected times.  It could=20= well be worth the effort to test for a NaN result after each computation or=20= series of computations.


KB Williams --part1_140.222e4448.2d628726_boundary--