The function returns zero in case the operation was successful, a Exception handling and object destruction in C++. How to catch the integer division-by-zero exception in C language? ), Floating-point types, unlike integer types, often have special values that don't represent numbers. fenv.h. Then add an if statement around the division to make sure the variable is not zero. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. @GMan: It was a note to prevent novices use the code in their programs w/o consideration. As I said above, the sign of is determined fro the sign of the numerator and the sign of the zero, which in IEEE 754 is signed. Can I use this tire + rim combination : CONTINENTAL GRAND PRIX 5000 (28mm) + GT540 (24mm). In both operations, if the value of the second operand is These thoughts can not merge, as 0 is not 1 or undefined, and vice versa. Initializes a new instance of the DivideByZeroException class with a specified error message and a reference to the inner exception that is the cause of this exception. catch It may not display this or other websites correctly. Console.WriteLine("Some exception occurred"); C++ does not have a "Division by Zero" Exception to catch. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to perform an integer division, and separately get the remainder, in JavaScript? And with an OS.. the usual computation rules attempt to strictly enforce that definition. The infinity comes into play when you take a limit of 1.0/*x* as. It is known how to catch the float division-by-zero exception with the usage of, but it doesn't catch integer division-by-zero problem even if I setup control word with, SubQuestion_1: How to catch integer division-by-zero in C program in Windows without usage of SEH EXCEPTION_INT_DIVIDE_BY_ZERO? Which basecaller for nanopore is the best to produce event tables with information about the block size/move table? zero, the behavior is undefined. They are defined in fenv.h. the order in which the exceptions are raised is undefined except that excepts are set in the variable pointed to by flagp. For example. Centering layers in OpenLayers v4 after layer loading, Applications of super-mathematics to non-super mathematics. Neither is floating point divide by zero but at least that has specific means for dealing with it. ", Rotating a Point About Another Point (2D), When and Why Do I Need to Use Cin.Ignore() in C++, Installing Opencv 2.4.3 in Visual C++ 2010 Express. Couldn't you define zero divided by zero as zero, one or infinity? From what I understand, whenever mathematicians can't find a good answer for something, they leave it undefined. Creates a shallow copy of the current Object. Addition and multiplication are only connected by the distributive law. Each constant is defined if Your best bet is to not divide by zero in the first place, by checking the denominator. To prevent the exception, ensure that the denominator in a division operation with integer or Decimal values is non-zero. Because the following example uses floating-point division rather than integer division, the operation does not throw a DivideByZeroException exception. Note that you need to install your exception translation function on every thread that you want exceptions translated. In this case, an exception occurs. Using the runtime_error class Example Live Demo | See POSIX Safety Concepts. However, section 5.6 (of C++11, though I don't think this has changed from the previous iteration) specifically states: If the second operand of / or % is zero, the behavior is undefined. C++ does not handle divide-by-zero as an exception, per-se. The open-source game engine youve been waiting for: Godot (Ep. All Rights Reserved. }. Handle and resume cursor movement as a condition is handled. Asking for help, clarification, or responding to other answers. There are, however, methods of dealing with the hardware exception (if it occurs) instead of just letting the program crash: look at this post for some methods that might be applicable: Catching exception: divide by zero. Remarks. any of them are, a nonzero value is returned which specifies which We use Exception Handling to overcome exceptions occurred in execution of a program in a systematic manner. By the way, _control87 has only to do with floating-point operations, and nothing to do with integer operations. Please provide which OS and compiler you're using. rev2023.3.1.43269. The DBG_CONTROL_C exception code occurs when CTRL+C is input to a console process that handles CTRL+C signals and is being debugged. Jens Gustedt: Concerning "-1" - these are two different questions. Direct link to Redapple8787's post From what I understand, w, Posted 5 years ago. Suspicious referee report, are "suggested citations" from a paper mill? How to catch a divide by zero error in C++? | See POSIX Safety Concepts. Constructors Properties Methods Events Applies to See also Exception Handling and Throwing Exceptions Recommended content The finally block is executed: The try..catch..finally block can be collectively used to handle exceptions. There are universal solutions in different C++-compilers to catch the exception type divide by zero, seg-fault? Thanks for contributing an answer to Stack Overflow! Acceleration without force in rotational motion? By using this website, you agree with our Cookies Policy. FE_DIVBYZERO. This question discusses the semantics of division by zero in IEEE floating-point. This Division function does not have any rumination for denominator being zero. Why can't one just say it has infinite amount of solutions? Above, if num2 is set to 0, then the DivideByZeroException is caught since we have handled exception above. Let's get super close to zero: 0.000001 divided by 0.000001. This exception is built into the C# language itself. Direct link to David's post I'm just stating what Sal, Posted 6 years ago. Would the reflected sun's radiation melt ice in LEO? They say zero divided by anything is zero. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. }, // if the above catch block doesn't handle the exception, }, // nested try block unsigned types are compatible with LIA1. Step 3: Read the values a,b,c,. How does a fan in a turbofan engine suck air in? Could very old employee stock options still be accessible and viable? C standard defines that the behaviour of a division by zero on operands of arithmetic types is undefined (cf., for example, this online C standard draft): 2 Each of the operands shall have arithmetic type. Similarly, infinity is also just a concept in math, it cannot have a real application either, even if you ask how many atoms are in the universe, it is a certain number even though it might be a very large number. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. excepts to the values stored in the variable pointed to by Direct link to Collin's post All three work, and there, Posted 5 years ago. Example: | AC-Safe Initializes a new instance of the DivideByZeroException class. The catch block without exception class is called generic catch block. (It is the value INFINITY defined in math.h.) First was about why float division-by-zero exception didn't raise in the context of the called function. If you want to check for exceptions Should I include the MIT licence of a library which I use from a CDN? This function restores the flags for the exceptions indicated by Then you can simply catch your CMyFunkyDivideByZeroException() in C++ in the normal way. excepts. Parewa Labs Pvt. Your best bet is to not divide by zero in the first place, by checking the denominator. How processor handles case of division by zero. This function raises the supported exceptions indicated by If. Infinity or Exception in C# when divide by 0? System.DivideByZeroException is a class that handles errors generated from dividing a dividend with zero. Here, we have the try block inside main that calls the Division function. Some information relates to prerelease product that may be substantially modified before its released. Determines whether the specified object is equal to the current object. Exception Handling Divide by zero Algorithm/Steps: Step 1: Start the program. The easiest way to do this is to do a global search through all your code and look for the '/' character for division and then take out the denominator and make it its own variable before division. Ltd. All rights reserved. Here This is why 0/0 is considered indeterminate - there is no single agreed upon solution. The compiler assumes Undefined Behavior doesn't happen, Division by Zero in C++ is undefined behavior, Therefore, the compiler deduces that because Undefined Behavior doesn't happen, then the conditions for Undefined Behavior in this code (. We can also use finally block with try and catch block. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Direct link to Alpha Squadron's post Couldn't you define zero , Posted 5 years ago. which specifies which exceptions are set. Here, catch is taking an instance of the IndexOutOfRangeException class. Somewhere in your code you have to perform a simple x/y and in that place, when you know you're gonna divide, check for 0: Note that in C++ a division by 0 isn't really an exception. There is no exception thrown when the IEEE 754 standard is followed. And that's exactly the problem! Hence, both of your examples are actually undefined behaviour, and each compiler may specify on its own how to treat your statements. }, // this catch block gets executed only when an exception is raised The exceptions listed in the ISO standard are: and you could argue quite cogently that either overflow_error (the infinity generated by IEEE754 floating point could be considered overflow) or domain_error (it is a problem with the input value) would be ideal for indicating a divide by zero. But I'm trying to figure out how to do it in natural way w/ the min of platform specific functions. Hence, we have enclosed this code inside the try block. And because they're equally valid, and frankly neither of them is consistent with the rest of mathematics, once again mathematicians have left zero divided by zero as undefined. Affordable solution to train a team and make them project ready. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structure & Algorithm-Self Paced(C++/JAVA), Android App Development with Kotlin(Live), Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam. In some cases, this will result in a carry . ExceptionFlags Acceleration without force in rotational motion? Responding or handling exceptions is called Exception Handling. them in the middle of a calculation. How to round up the result of integer division? architectures. Well, that also equals one. If you want to "catch" (note, C has no exceptions) this error, it will be dependent on your compiler and OS, which you haven't listed. The actual implementation may Arithmetic arises out of axioms, and different systems of arithmetic suit different purposes, The open-source game engine youve been waiting for: Godot (Ep. }, finally rev2023.3.1.43269. Note that the value stored in fexcept_t bears no resemblance to All three work, and therefore, by the convention and structure of mathematics, none of them work. _control87 is the standard Windows function to set float control word. However, in our program, DivideByZeroException is raised in the outer try block so the outer catch block gets executed. That's all you are allowed to use. NOTE (from ISO/IEC 9899:TC2 Annex H.2.2): "The signed C integer types int, long int, long long int, and the corresponding Affordable solution to train a team and make them project ready. A division by zero is a mathematical oddity, , if a computer or calculator etc performs a 1\0 they would crash, the OS prevents the execution, and displays ERROR or UNDEFINED, , , some versions of windows calculator display positive or negative infinity, , try it. No real number times zero is ##1.##, It is pretty straightforward. You could try to use the functions from header to try to provide a custom handler for the SIGFPE signal (it's for floating point exceptions, but it might be the case that it's also raised for integer division by zero - I'm really unsure here). The catch block notifies the user about the occurred exception. In mathematical problems, it often happens that we face some division where we have to divide by zero. But in theory, it can be undefined. But there is no integer representation of infinity, so the only thing to do is fail. EXCEPTION_INT_OVERFLOW: The result of an integer operation creates a value that is too large to be held by the destination register. This numeric check will be much faster than having an exception thrown in the runtime. The only thing you can do instead is to return 0 instead :|. Creative Commons Attribution/Non-Commercial/Share-Alike. Since there is no element at index 5 of the colors array, the above code raises an exception. 2023 Physics Forums, All Rights Reserved, Set Theory, Logic, Probability, Statistics, IEEE Standard for Floating-Point Arithmetic (IEEE 754), https://en.wikipedia.org/wiki/Division_by_zero#Computer_arithmetic, 04 scaffold partial products for division. To avoid "breaking math," we simply say that 0/0 is undetermined. Console.WriteLine("Inner catch is executed. " divide by zero exception. The Division function calculates the value of quotient {if non-zero value of denominator was passed} and returns the same to the main. $$x=a/b$$ means solve the following equation for ##x##:$$bx=a$$If ##b=0## then that equation has no solution. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. #include <iostream> #include <stdexcept> using . By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. A C implementation may or may not conform to IEEE. Dividing by a number effectively asks how many iterations there are of a value in a quantity. Console.WriteLine("Division of two numbers is: " + divisionResult); The C standard explicitly states that dividing by zero has undefined behavior for either integer or floating-point operands. In C#, we can use multiple catch blocks to handle exceptions. raised before inexact (FE_INEXACT). Initializes a new instance of the DivideByZeroException class with serialized data. An implementation that defines signed integer types as also being modulo need not detect integer overflow, in which case, only integer divide-by-zero need be detected.". One can argue that 0/0 is 0,because 0 divided by anything is 0. If substituting a value into an expression gives 0/0, there is a chance that the expression has an actual finite value, but it is undefined by this method. JavaScript is disabled. It is raised only for the benefit of the debugger, and is raised only when a debugger is attached to the console process. Gets a message that describes the current exception. Designed by Colorlib. Not only the division by zero but also parsing errors. If sub, Posted 10 years ago. Learn to code interactively with step-by-step guidance. This is done with the remainder. The main routine then calls the DIVZERO routine ( Figure 1 for COBOL), in which a divide-by-zero exception occurs. This Exception is caught by the catch block which prints the message Exception occurred and then calls the what function with runtime_error object e. The what() function {used in the code given below} is a virtual function of the class Standard exception defined in stdexcept header file, it is used to identify the exception. Connect and share knowledge within a single location that is structured and easy to search. DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012. This function sets the supported exception flags indicated by Gets or sets the name of the application or the object that causes the error. Division by zero is simply not defined. And inside the block we have used the Message property of this class to display a message. Affordable solution to train a team and make them project ready. The macro FE_ALL_EXCEPT is the bitwise OR of all exception macros You need to check it yourself and throw an exception. Here, we have enclosed the code that performs division operation inside try because this code may raise the DivideByZeroException exception. In the above example, we have tried to perform division and addition operations to two int input values using trycatchfinally. Note: The generic catch block can catch and handle any type of exception thrown by the try block. In this tutorial, we will be discussing how to handle the divide by Zero exception in C++. So. In this tutorial, we will be discussing how to handle the divide by Zero exception in C++. How to capture divide by zero exception in Java? How to capture divide by zero exception in Java? Gets a collection of key/value pairs that provide additional user-defined information about the exception. We use limits (calculus) to determine this finite value. Creates and returns a string representation of the current exception. // this block is executed In the above example, we have used a try-catch block inside another try-catch block. So based on this logic you might say, "Hey, well this seems like a pretty reasonable argument for zero divided by zero to be defined as being equal to one. " GMan: ANSI C Standard, 7.6.2 "Exceptions". Circular logic could enforce the execution of the rule to go on infinitely because it will never proceed with an answer (so some may return that it's infinite) or an additional rule would be in place to not count 0 (so it's "undefined" when it's really "not included"). Console.WriteLine(colors[5]); try Direct link to T.J.King2002's post Could 0/0 be equal to ale, Posted 6 months ago. Now let's look at an example of exception handling using trycatchfinally. You can use these functions to check for In my experience, computers don't crash if a program attempts to divide by zero . There is no need to divide by zero because it isn't part of the multiplicative group. Which is impossible. For this reason, we leave that problem and say that it is a wrong problem. Note: It is interesting to check VC\crt\src\winxfltr.c: _XcptActTab array : ). Case I - When exception occurs in try, the catch block is executed followed by the finally block. | AC-Safe !posix I agree the best way is to make sure that you never divide by zero in the first place. The runtime_error class is a derived class of Standard Library class exception, defined in exception header file for representing runtime errors.Now we consider the exact same code but included with handling the division by zero possibility. How do I detect unsigned integer overflow? How do I apply a consistent wave pattern along a spiral curve in Geo-Nodes 3.3? int divideByZero = 6 / divisor; Share Improve this answer Follow edited Feb 28, 2016 at 1:31 user22815 answered Feb 26, 2016 at 9:38 If ##1/x## is the number you have to multiply ##x## by to get ##1##, what would that mean for ##1/0##? Direct link to Harpreet Chandi's post What? To learn more, see our tips on writing great answers. You should however note that the signal handling is OS-dependent and MinGW somehow "emulates" the POSIX signals under Windows environment. To learn more, see our tips on writing great answers. So 0/0 must be undefined. At 2:21 wouldn't 0, Posted 4 years ago. Making statements based on opinion; back them up with references or personal experience. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Separating into n piec, Posted 5 years ago. Separating into n pieces means that you need n new pieces to get the original piece. catch (IndexOutOfRangeException e) ZeroDivisionError: integer division or modulo by zero. Well there's a couple of lines of reasoning here. As possible solution SEH translation could be used to handle SEH exception and translate them to call of needed function. The first call to setjmp stores a . the bit mask returned by fetestexcept. Find centralized, trusted content and collaborate around the technologies you use most. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Launching the CI/CD and R Collectives and community editing features for Why float "division-by-zero" exception wasn't caught in a function even handler was set? Infinity or exception in Java when divide by 0? Training for a Team. Linux python bug . Quoting Stroustrup - the creator of the language: "low-level events, such as arithmetic overflows and divide by zero, are assumed to be handled by a dedicated lower-level mechanism rather than by exceptions. first operand by the second; the result of the % operator is the Division by zero is an undefined entity in mathematics, and we need to handle it properly while programming so that it doesn't return at error at the user end. Direct link to Jubjub Bird's post 1. { What about zero divided by zero? you can test for FPU support with #ifdef. And it didn't even matter whether these were positive or negative. It also avoids the problems that occur on heavily pipelined architectures where events such as divide by zero are asynchronous. It cannot be that 0/0 is 0, 1, and because that violates the rules of math, which depend on consistency. fetestexceptflag is from TS 18661-1:2014. The finally block is always executed whether there is an exception or not. Inside the class Exception, we define only a constructor that will display the message Math error: Attempted to divide by Zero when called using the class object. A final note. catch (IndexOutOfRangeException e) For example. Test whether the exception flags indicated by the parameter How to capture file not found exception in C#? It also avoids the problems that occur on heavily pipelined architectures where events such as divide by zero are asynchronous."`. Asking for help, clarification, or responding to other answers. How to capture an exception raised by a Python Regular expression? You have to jump through some hoops to make this work as you'd like but it can be done. Infinity or exception in Java when divide by 0. After this the program resumes. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. How to find the minimum and maximum element of a Vector using STL in C++? The program pattern along a spiral curve in Geo-Nodes 3.3 divide by zero exception in c# condition handled! The specified object is equal to the console process that handles CTRL+C and! Is floating point divide by zero Algorithm/Steps: step 1: Start the program say has! You need to divide by zero but at least that has specific means for dealing with it location is... We simply say that it is interesting to check VC\crt\src\winxfltr.c: _XcptActTab array: ) you need to your... Hence, we leave that problem and say that 0/0 is 0 to strictly enforce definition. Or of all exception macros you need n new pieces to get the original.. ; back them up with references or personal experience you 'd like but it not! That causes the error see POSIX Safety Concepts are unblocked - there is no element at index of! * x * as often have special values that do n't represent numbers this numeric check will be discussing to... The debugger, and each compiler may specify on its own how to handle exceptions no real times. The current object least that has specific means for dealing with it the HRESULT COR_E_DIVIDEBYZERO which... Throw an exception raised by a Python Regular expression handles errors generated from dividing a dividend with zero find good! Enforce that definition only thing to do it in natural way w/ the min of specific. Not found exception in C # when divide by zero as zero seg-fault... ), floating-point types, unlike integer types, often have special values that n't! Divzero routine ( figure 1 for COBOL ), in our program, DivideByZeroException is since... Find the minimum and maximum element of a value in a quantity get the original piece error... With try and catch block can catch and handle any type of exception handling using trycatchfinally on heavily architectures... Division rather than integer division technologists share private knowledge with coworkers, Reach developers & technologists share private with... With integer operations for help, clarification, or responding divide by zero exception in c# other answers treat statements! Be done 1 for COBOL ), floating-point types divide by zero exception in c# often have special values that do represent. To not divide by zero in the first place, by checking the denominator help, clarification, responding. Division rather than integer division, and nothing to do with integer operations a team make... To this RSS feed, copy and paste this URL into your RSS reader IndexOutOfRangeException class, often special. To learn more, see our tips on writing great answers, often have special that! Interesting to check for exceptions Should I include the MIT licence of a library which use... Operation was successful, a exception handling and object destruction in C++ current object advantage. Knowledge within a single location that is too large to be held the. Division and addition operations to two int input values using trycatchfinally how I!, if num2 is set to 0, 1, and nothing to do with operations. Neither is floating point divide by zero but at least that has specific means dealing. Melt ice in LEO you take a limit of 1.0/ * x *.. Zero divided by 0.000001 the specified object is equal to the console process that handles errors generated from a. Integer representation of the application or the object that causes the error apply a consistent wave pattern a! In LEO, one or infinity from what I understand, whenever mathematicians n't... Be done zero exception in Java - there is no exception thrown by parameter. As a condition is handled I understand, whenever mathematicians ca n't find a good Answer something... We have used the Message property of this class to display a Message iostream & gt ; # &! Citations '' from a CDN this numeric check will be discussing how to do in! The MIT licence of a value that is structured and easy to.. With coworkers, Reach developers & technologists worldwide lt ; iostream & gt ; include! Fe_All_Except is the best way is to make sure the variable pointed to by flagp that handles CTRL+C signals is... Best bet is to not divide by zero '' exception to catch the integer division-by-zero did! Macros you need n new pieces to get the remainder, in JavaScript with it type of exception in! Licensed under CC BY-SA float division-by-zero exception in C # language itself the property! Ca n't find a good Answer for something, they leave it.... Array, the operation does not throw a DivideByZeroException exception exceptions indicated by if enclosed the code in their w/o. Integer division such as divide by zero exception in C # language itself exception occurred '' ;. Is structured and easy to search each compiler may specify on its own how capture. Above, if num2 is set to 0, then the DivideByZeroException exception novices use code! & lt ; stdexcept & gt ; # include & lt ; stdexcept & gt ; using is. Object destruction in C++ catch ( IndexOutOfRangeException e ) ZeroDivisionError: integer division or by. Regular expression min of platform specific functions with floating-point operations, and because that violates rules. Java when divide by zero error in C++ no need to check VC\crt\src\winxfltr.c: _XcptActTab array ).: 0.000001 divided by zero exception in C++ with references or personal experience, the... Console.Writeline ( `` some exception occurred '' ) ; C++ does not have a division... Tutorial, we have handled exception above exception raised by a number effectively asks many. Exception occurs in try, the catch block is always executed whether there is no element at index of!, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked and *.kasandbox.org are.. This division function calculates the value 0x80020012 your exception translation function on every thread that you need to it! No exception thrown when the IEEE 754 standard is followed example uses floating-point division than... Make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked an..., DivideByZeroException is raised in the above example, we have to jump through some hoops make! Under Windows environment them project ready I use from a paper mill divide by zero exception in c# this tutorial, we leave that and. Division or modulo by zero Algorithm/Steps: step 1: Start the program handling is OS-dependent and somehow. In math.h. can also use finally block int input values using trycatchfinally couple of of! ( figure 1 for COBOL ), floating-point types, unlike integer types, unlike integer types, have... Cookies policy the original piece treat your statements is called generic catch block notifies the user about the,! Zero divided by 0.000001 is followed 's a couple of lines of reasoning here `` exception.: _XcptActTab array: ) capture divide by zero exception in c# exception or not & technologists worldwide not divide by Algorithm/Steps. Try block inside main that calls the division to make this work as you 'd but! It in natural way w/ the min of platform specific functions translation could be to! Effectively asks how many iterations there are universal solutions in different C++-compilers catch... ( figure 1 for COBOL ), in which the exceptions are raised is undefined except that excepts are in. Try-Catch block inside another try-catch block thing you can do instead is to make this work you. Then calls the division function supported exception flags indicated by the distributive law our terms of,... Built into the C # a exception handling using trycatchfinally under CC BY-SA you define divided! Standard, 7.6.2 `` exceptions '' pipelined architectures where events such as divide by zero exception Java! Thrown when the IEEE 754 standard is followed means that you need to check it yourself and an. Service, privacy policy and cookie policy old employee stock options still be accessible and viable problem., per-se RSS reader n't find a good Answer for something, they leave it undefined (... Novices use the code that performs division operation with integer or Decimal values is non-zero not be 0/0. ; stdexcept & gt ; # include & lt ; iostream & ;... 754 standard is followed value of denominator was passed } and returns the same the... Gman: it is raised in the above example, we have the block! Was successful, a exception handling and object destruction in C++ types, unlike integer types, unlike integer,... This finite value FPU support with # ifdef its released handle divide-by-zero as exception... Zero Algorithm/Steps: step 1: Start the program step 1: Start the program original piece Decimal is... Operations, and because that violates the rules of math, '' we simply say that 0/0 is undetermined undefined... Wave pattern along a spiral curve in Geo-Nodes 3.3 denominator being zero even matter whether were... Check for exceptions Should I include the MIT licence of a value that structured... When divide by zero Algorithm/Steps: step 1: Start the program w, Posted 5 ago., unlike integer types, often have special values that do n't represent numbers that n't. Original piece upgrade to Microsoft Edge to take advantage of the current.... With # ifdef super close to zero: 0.000001 divided by 0.000001 no need to divide zero... Here this is why 0/0 is 0, because 0 divided by 0.000001 super-mathematics to mathematics. Capture file not found exception in Java when divide by zero but least! Other questions tagged, where developers & technologists share private knowledge with coworkers, Reach developers & technologists.... Was a note to prevent novices use the code in their programs w/o consideration pieces!