Re: Exception on a simple arithmetic problem
Re: Exception on a simple arithmetic problem
- Subject: Re: Exception on a simple arithmetic problem
- From: Chris Espinosa <email@hidden>
- Date: Fri, 20 Jan 2006 10:21:53 -0800
On Jan 20, 2006, at 10:09 AM, Cameron Hayne wrote: 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 ?
Have you looked at /usr/include/mach/i386/exception.h and the subcodes for EXC_ARITHMETIC?
/* * EXC_ARITHMETIC */
#define EXC_I386_DIV 1 #define EXC_I386_INTO 2 #define EXC_I386_NOEXT 3 #define EXC_I386_EXTOVR 4 #define EXC_I386_EXTERR 5 #define EXC_I386_EMERR 6 #define EXC_I386_BOUND 7 #define EXC_I386_SSEEXTERR 8
This would help you narrow it down a little.
Chris |
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