Division By Zero Error In C
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Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just division by zero error in access report like you, helping each other. Join them; it only takes a minute: Sign up c++ division by 0 up vote 6 down vote favorite 2 I am running long simulations. I record the results into a vector division by zero error java to compute statistics about the data. I realized that, in theory, those samples could be the result of a division by zero; this is only theoretical, I am pretty sure it's not the case. In order to avoid rerunning the simulation after modifying the code, I was wondering what happens in that case. Would I be able to realize whether a division by 0 has occurred or not? Will I get error messages? (Exceptions are
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not being handled at the moment). Thanks c++ divide-by-zero share|improve this question asked Jan 20 '11 at 9:21 Bob 1,295104587 2 What type are we talking here? float? –EboMike Jan 20 '11 at 9:23 add a comment| 5 Answers 5 active oldest votes up vote 16 down vote For IEEE floats, division of a finite nonzero float by 0 is well-defined and results in +infinity (if the value was >zero) or -infinity (if the value was less than zero). The result of 0/0 is NaN. If you use integers, the behaviour is undefined. share|improve this answer answered Jan 20 '11 at 9:25 etarion 8,68721637 add a comment| up vote 5 down vote Note that C standard says (6.5.5): The result of the / operator is the quotient from the division of the first operand by the second; the result of the % operator is the remainder. In both operations, if the value of the second operand is zero, the behavior is undefined. So something/0 is undefined (by the standard) both for integral types and Floating points. Nevertheless most implementations have fore mentioned behavior (+-INF or NAN). share|improve this answer answered Mar 13 '14 at 21:18 Огњен Шобајић 540417 1 It's worth noting that at least in C, if an implementation declares support for C standard Annex F (optional), Annex F overri
known as exception handling). By convention, the programmer is expected to prevent errors from occurring in the first place, and test return values from functions. For example, -1 and NULL division by zero error crystal reports are used in several functions such as socket() (Unix socket programming) or malloc() division by zero error vba respectively to indicate problems that the programmer should be aware about. In a worst case scenario where there is
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an unavoidable error and no way to recover from it, a C programmer usually tries to log the error and "gracefully" terminate the program. There is an external variable called "errno", accessible http://stackoverflow.com/questions/4745311/c-division-by-0 by the programs after including
by 0" or "Divide Overflow" error messages. The divide error messages are caused when the computer or software attempts run a process that attempts to http://www.computerhope.com/issues/ch000396.htm perform a mathematical division by zero, which is an illegal operation. This error message could also be caused by a computer or software limitation or conflict with computer memory. Improper calculation If you http://cboard.cprogramming.com/c-programming/120617-error-c-programming-fault-integer-division-zero.html or the program you are using performs a calculation in any program and experience a divide error, ensure that the calculation being performed is possible. Some programs are not capable of verifying division by the accuracy of a calculation and may perform an illegal instruction. Programs such as Microsoft Excel, will generate a #DIV!0 error indicating the formula or calculation is invalid, or you are attempting to divide by zero. Hardware or software incompatibility This issue can occur if software is being run on a computer that has hardware that is incompatible with the software. For example, this issue division by zero may occur with restore software designed for a specific computer and is being run on another computer or on the correct computer that has added hardware within it. Make sure all software installed on the computer is up to date and fully compatible with the system. Driver issue If you are encountering a divide error while using Windows, make sure you are running the latest drivers and software for all component hardware devices. Verify the video card, sound card, network card and modem drivers on the computer. You can find a listing of computer drivers on our driver page. Software issue If the divide error happens while in a game or program and the above recommendations does not resolve your issue, verify all software patches and upgrades have been obtained and applied. Also, verify no other program is running in the background that could be causing your problem by End Tasking all background programs and TSRs. External cache or 2nd level cache If you are encountering the divide error in an older software program or game it can be caused by compatibility issues with External cache or 2nd level cache. Temporarily disabling this featur
Programming Boards C Programming Error in C programming - Fault: Integer division by zero Getting started with C or C++ | C Tutorial | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: Error in C programming - Fault: Integer division by zero Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 10-14-2009 #1 vladanea View Profile View Forum Posts Registered User Join Date Oct 2009 Posts 2 Error in C programming - Fault: Integer division by zero Can somebody help me please? What is the problem with this very simple source code of Euclid algorthm? #include