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Re: Exception on a simple arithmetic problem
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Re: Exception on a simple arithmetic problem


  • Subject: Re: Exception on a simple arithmetic problem
  • From: Eric Albert <email@hidden>
  • Date: Fri, 20 Jan 2006 10:03:15 -0800

On Jan 20, 2006, at 4:30 AM, Peter wrote:

This happen during debugging my C code under XCode, compiled for Intel platform,

double fVal, fTemp;

fTemp = filesize; /* filesize is a long long and is greater than 0 */
fVal = 100.0 / (double) fTemp; /* EXC_ARITHMETIC happens here */


The debugger stop and throws EXC_ARITHMETIC message at the calculation line. When the program is in release mode(compile with -O2), this problem never happens during runtime. I am using OS 10.4.3 (8F1111).

What condition makes EXC_ARITHMETIC exception to be thrown under Pentium ?

Integer divide by zero is a fatal exception on Intel. You're doing a floating point divide here, so the exception's probably happening on a different line.


-Eric

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References: 
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