divide by zero exception in c#

An exception is an unexpected event that occurs during program execution. So we're gonna think about zero divided by zero. Gets a collection of key/value pairs that provide additional user-defined information about the exception. This function sets the supported exception flags indicated by Your best bet is to not divide by zero in the first place, by checking the denominator. In other words, you're trying to find- meaning define- a number that when multiplied by zero you get 1. Now let's look at an example of exception handling using trycatchfinally. How to capture index out of range exception in C#? I'm just stating what Sal said in the video, but some people say that 0/0 is obviously 0, since 0/4, for example, is zero. Then add an if statement around the division to make sure the variable is not zero. DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012. Console.WriteLine("Sum of two numbers is: " + (firstNumber + secondNumber)); They are defined in fenv.h. From what I understand, whenever mathematicians can't find a good answer for something, they leave it undefined. For a better experience, please enable JavaScript in your browser before proceeding. implementation-defined value representing the current setting of the Go through the video to understand the t. However, some say anything divided by zero is undefined, since 4/0 and 5/0 are and so on. That's all you are allowed to use. It's an error which is determined at hardware level and is returned back to the operating system, which then notifies your program in some OS-specific way about it (like, by killing the process). Console.WriteLine("An exception occurred: " + e.Message); *; class GFG { public static void main (String [] args) { int a = 6; int b = 0; System.out.print (a / b); } } Output: Handling of Divide by zero exception: Using try-Catch Block Java import java.io. JavaScript is disabled. What about zero divided by zero? -1 for reposing a question that you seem to have asked some minutes ago. 0 divided by 0.000001 is also going to be equal to zero." What are some tools or methods I can purchase to trace a water leak? | See POSIX Safety Concepts. 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. Case II - The finally block is directly executed after the try block if an exception doesn't occur. It's not the only thing to do. To avoid the divide by zero exception, you must check the denominator against the zero value. Console.WriteLine("Inner catch is executed. " Ltd. All rights reserved. How to capture an exception raised by a Python Regular expression? Note that the value stored in fexcept_t bears no resemblance to In my experience, computers don't crash if a program attempts to divide by zero . Mostly, it depends on the target environment. Direct link to 's post I considered that but isn, Posted 7 years ago. Dividing a floating-point value by zero doesn't throw an exception; it results in positive infinity, negative infinity, or not a number (NaN), according to the rules of IEEE 754 arithmetic. Infinity or Exception in C# when divide by 0? { Dividing a number by Zero is a mathematical error (not defined) and we can use exception handling to gracefully overcome such operations. Direct link to T.J.King2002's post Could 0/0 be equal to ale, Posted 6 months ago. Another one can argue that 0/0 is 1, because anything divided by itself is 1. In this tutorial, you will learn about the C# Exception Handling with the help of examples. This function clears all of the supported exception flags indicated by In both operations, if the value of the second operand is Could very old employee stock options still be accessible and viable? Making statements based on opinion; back them up with references or personal experience. We can also use finally block with try and catch block. These thoughts can not merge, as 0 is not 1 or undefined, and vice versa. Handling the Divide by Zero Exception in C++. Each constant is defined if and only if the FPU you are compiling for supports that exception, so you can test for FPU support with '#ifdef'. And so they say, "For example, zero divided by 0.1, well that's just going to be zero. 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. However, in our program, DivideByZeroException is raised in the outer try block so the outer catch block gets executed. }, // generic catch block In that class, we define a constructor that shows the message "Math error: Attempted to divide by Zero". Direct link to David Severin's post In real life, there is no, Posted 2 years ago. Change color of a paragraph containing aligned equations. feclearexcept is then And that's exactly the problem! There are not a lot of undefined things in math, but all of Geometry is based on three undefined terms, a point, line and plane none of which can exist in the real world, but without the theory of these, real world applications would be more difficult. Cs unsigned integer types are modulo in the LIA1 sense in that overflows or out-of-bounds results silently wrap. For example, if we enter 9 and 2, exception doesn't occur in the try block and we get the following output: In C#, a trycatch block inside another trycatch block is called nested trycatch. Java import java.io. When overridden in a derived class, sets the SerializationInfo with information about the exception. 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. Do German ministers decide themselves how to vote in EU decisions or do they have to follow a government line? Note: If you want to learn more about the Exception class methods and properties visit here. In this example, we are making an arithmetic exception by intentionally dividing the integer by zero. Integer divide by zero is not an exception in standard C++. The first call to setjmp stores a . By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There are universal solutions in different C++-compilers to catch the exception type divide by zero, seg-fault? Console.WriteLine("Some exception occurred"); I agree the best way is to make sure that you never divide by zero in the first place. ), Floating-point types, unlike integer types, often have special values that don't represent numbers. If you're seeing this message, it means we're having trouble loading external resources on our website. Direct link to Idhikash Jaishankar's post "What? Hence, we have enclosed this code inside the try block. Whether for overflow or This is why 0/0 is considered indeterminate - there is no single agreed upon solution. Your best bet is to not divide by zero in the first place, by checking the denominator. Division by zero is simply not defined. Fast ceiling of an integer division in C / C++. 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. Gets the Exception instance that caused the current exception. You are using an out of date browser. By the way, _control87 has only to do with floating-point operations, and nothing to do with integer operations. catch 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. (There are some useful signals which are very useful in general in low-level programming and don't cause your program to be killed right after the handler, but that's a deep topic). Btw aleph null is undefined as it is an infinity(). caught division by zero for intdiv() PHP Warning: Division by zero in test.php on line 10 PHP Stack trace: PHP 1. Centering layers in OpenLayers v4 after layer loading, Applications of super-mathematics to non-super mathematics. If you wanted to implement such a beast, you could use something like intDivEx in the following program (using the overflow variant): and you can see it throws and catches the exception (leaving the return variable untouched) for the divide by zero case. What does a search warrant actually look like? Asking for help, clarification, or responding to other answers. 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. It may not display this or other websites correctly. Divide by zero: This Program throw Arithmetic exception because of due any number divide by 0 is undefined in Mathematics. exceptions are set. rev2023.3.1.43269. How to return multiple values from a function in C or C++? This exception is built into the C# language itself. All three work, and therefore, by the convention and structure of mathematics, none of them work. ", 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. floating-point status word. excepts are set in the variable pointed to by flagp. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. The operands of the And it didn't matter whether we were dividing by a positive or negative number. How to catch a divide by zero error in C++? Example 3. All of these points of view are logical and reasonable, yet they contradict each other. It could also format your hard disk and laugh derisively :-). If any of them are, a nonzero value is returned @JeremyFriesner: Shouldn't 1.0/0.0 be NaN then? Similar question: How to handle all errors, including internal C library errors, uniformly. Direct link to Redapple8787's post From what I understand, w, Posted 5 years ago. Why does Jesus turn to the Father to forgive in Luke 23:34? Separating into n piec, Posted 5 years ago. Negative this thing divided by negative this thing still gets me to one. Linux python bug . But it might have raised a question in your brain. Assuming that you can't simply fix the cause of the exception generating code (perhaps because you don't have the source code to that particular library and perhaps because you can't adjust the input params before they cause a problem). catch (IndexOutOfRangeException e) Do EMC test houses typically accept copper foil in EUT? You have to jump through some hoops to make this work as you'd like but it can be done. And right after executing the signal handler, the system kills the process and displays an error message. Not only the division by zero but also parsing errors. Why does it return x as an infinite value if you're using double but returns an error if you're using int? exception to catch, use Exception. fesetexcept is from TS 18661-1:2014. Gets the method that throws the current exception. The IEEE floating-point standard specifies that division by zero can yield a result of Infinity, which is what your implementation is doing. How to capture out of memory exception in C#? @outmind: In math, it's still undefined. System.DivideByZeroException is a class that handles errors generated from dividing a dividend with zero. from a set of calculations, you should clear all the flags first. The infinity comes into play when you take a limit of 1.0/*x* as. If. Learn more. Which basecaller for nanopore is the best to produce event tables with information about the block size/move table? Otherwise the result is zero. remainder. Prior knowledge on Exception handling in C++ will be helpful. The underflow exception. The C standard explicitly states that dividing by zero has undefined behavior for either integer or floating-point operands. Consider the code given below, the Division function returns the result of numerator divided by denominator which is stored in the variable result in the main and then displayed. 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. zero, the behavior is undefined. Then the catch block catches the exception and shows the message the message "Exception occurred". Why does setupterm terminate the program? In this tutorial, we will be discussing how to handle the divide by Zero exception in C++. 1. The inner catch block gets executed when the raised exception type is IndexOutOfRangeException. Direct link to Journey to TN 2022's post No, it can be anything. C. Add One +112910981091092110nm n1e9m2e5 which are supported by the FP implementation. Or is it unde, Posted 10 years ago. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. The aim is to a have a separation of concerns: the Main method does input and output. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. One, you could start taking numbers closer and closer to zero and dividing them by themselves. @GMan: It was a note to prevent novices use the code in their programs w/o consideration. Examples. So division by zero is undefined. be very different, of course. The number of distinct words in a sentence, Retrieve the current price of a ERC20 token from uniswap v2 router using web3js. Affordable solution to train a team and make them project ready. save the entire status word and restore it later. Example: 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Should I include the MIT licence of a library which I use from a CDN? For Windows: it throws SEH exception. {main}() test.php:0 # php 8 $ php test.php caught division by zero for intdiv() caught division by zero for / Initializes a new instance of the DivideByZeroException class with a specified error message. 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 (. If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? Does the surface area of an inside-out oriented sphere have a negative value. signal is ANSI C signal handling approach. If non-generic catch blocks don't handle the exception, then generic catch blocks are executed. excepts, like feraiseexcept, but without causing enabled | AS-Safe Share Improve this answer Follow edited Feb 28, 2016 at 1:31 user22815 answered Feb 26, 2016 at 9:38 Well, sadly there is no standard way of catching division by zero, it's simply undefined behavior. This value is defined as STATUS_INTEGER_DIVIDE_BY_ZERO. Would the reflected sun's radiation melt ice in LEO? You can, however, For example, int divideByZero = 7 / 0; The above code causes an exception as it is not possible to divide a number by 0. GMan: It is possible to handle integer division-by-zero in Unix with SIGFPE and in Windows with SEH and EXCEPTION_INT_DIVIDE_BY_ZERO. This enables C++ to match the behaviour of other languages when it comes to arithmetic. FPUs report all the different exceptions. Exceptions abnormally terminate the flow of the program instructions, we need to handle those exceptions. If sub, Posted 10 years ago. Integer divide by zero is not an exception in standard C++. This one is about how to catch. B, Posted 7 years ago. How to capture divide by zero exception in Java? types. Is it ethical to cite a paper without fully understanding the math/methods, if the math is not relevant to why I am citing it? First was about why float division-by-zero exception didn't raise in the context of the called function. }. Example Let us see an example Hello Friends,Today our topic is on Divide By Zero Exception in C#.The Divide By Zero Exception will arise only when we divide any value with zero.Let me giv. Exception flags are only cleared when the program explicitly requests it, Gets the runtime type of the current instance. Floating Point Exception with no float or double variable. Dividing by a number effectively asks how many iterations there are of a value in a quantity. The above code causes an exception as it is not possible to divide a number by 0. Here, we have enclosed the code that performs division operation inside try because this code may raise the DivideByZeroException exception. Here And your other comment is exactly what we're saying: You, 6.5.5: Multiplicative opeators: "The result of the. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Next: Math Error Reporting, Previous: Infinity and NaN, Up: Floating Point Errors [Contents][Index]. For example. Here, we are trying to divide a number by zero. exception flags indicated by excepts. _control87 is the standard Windows function to set float control word. Enjoy unlimited access on 5500+ Hand Picked Quality Video Courses. It's the same type of error which appears when you dereference a null pointer (then your program crashes by SIGSEGV signal, segmentation fault). A final note. It's not an exception. {main}() test.php:0 Warning: Division by zero in test.php on line 10 Call Stack: 0.0740 417272 1. Try Programiz PRO: rev2023.3.1.43269. Exceptions abnormally terminate the flow of the program instructions, we need to handle those exceptions. Separating into n pieces means that you need n new pieces to get the original piece. Step 3: Read the values a,b,c,. The following Microsoft intermediate language (MSIL) instructions throw DivideByZeroException: DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012. Designed by Colorlib. The macro FE_ALL_EXCEPT is the bitwise OR of all exception macros #include <iostream> #include <stdexcept> using . We all use division in mathematics. Direct link to David's post I'm just stating what Sal, Posted 6 years ago. This numeric check will be much faster than having an exception thrown in the runtime. Zero divided by 0.001, well that's also going to be to zero. Gets a message that describes the current exception. The finally block is always executed whether there is an exception or not. FE_INEXACT. If you separate into 0 pieces means that you need 0 of the new piece/s to get to the original 1. How to round up the result of integer division? But does it help me catch integer division-by-zero exception? NOTE (from ISO/IEC 9899:TC2 Annex H.2.2): "The signed C integer types int, long int, long long int, and the corresponding architectures. (Of course the latter isn't going to happen, but it wouldn't violate the C standard if it did. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. 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? { I'm also confused about what the original questioner wanted to discuss - is it a question as to why do different OS's handle this differently or instead why it's not defined? How to catch an exception thrown by an async void method in C#. I know about limits in calculus. The try..catch block is used to handle exceptions in C#. The only thing you can do instead is to return 0 instead :|. first operand by the second; the result of the % operator is the How to find the minimum and maximum element of an Array using STL in C++? We make use of First and third party cookies to improve our user experience. Then we come to the try block that calls the Division function which will either return the quotient or throw an exception. Agree In C#, we can use multiple catch blocks to handle exceptions. 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. Please explain your context better. ZeroDivisionError:integerdivisionormodulobyzeroepoch_size=10epoch_size10 . They are: try..catch and finally. But someone could come along and say, "Well what happens if we divide zero by numbers closer and closer to zero; not a number by itself, but zero by smaller and smaller numbers, or numbers closer and closer to zero." Make all of these negatives, you still get the same answer. The notation you're using to interpret complex operations, doesn't change the way you're doing your low-level operations - like division. Infinity or Exception in C# when divide by 0? In this code the try block calls the CheckDenominator function. } 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. How to catch a divide by zero error in C++? Creative Commons Attribution/Non-Commercial/Share-Alike. @WeatherVane - very nice new icon/avitar @DavidC.Rankin you look pretty good yourself! the first operand by the second; the result of the % operator is the Here we define a class Exception that publicly inherits from runtime_error class. Hence, both of your examples are actually undefined behaviour, and each compiler may specify on its own how to treat your statements. Let us see an example. The exception that is thrown when there is an attempt to divide an integral or Decimal value by zero. 0/0 is undefined. The type may not even be Neither is floating point divide by zero but at least that has specific means for dealing with it. Infinity or exception in Java when divide by 0. fetestexceptflag is from TS 18661-1:2014. C++ program to demonstrate exception handling, Comparison of Exception Handling in C++ and Java. Console.WriteLine("Some exception occurred"); Set float control word a nonzero value is returned @ JeremyFriesner: should n't 1.0/0.0 be NaN then example we! Agreed upon solution to get the original piece a question that you need n new to. Is no, it means we 're gon na think about zero by! Question in your brain but also parsing errors multiple catch blocks to handle the exception class methods properties. Learn more about the exception instance that caused the current exception exactly the problem be.! To catch a divide by zero in the first place, by checking the denominator number divide 0! On its own how to capture out of memory exception in standard C++ divide by zero in test.php line. Or undefined, and nothing to do with floating-point operations, and therefore, by checking the denominator real,! Just stating what Sal, Posted 5 years ago NaN then a better experience, please enable JavaScript your! Have special values that do n't handle the exception type divide by zero can a. Tables with information about the C # or out-of-bounds results silently wrap words in a quantity ). You take a limit of 1.0/ * x * as the flags first gon na think about divided. Is 1 + secondNumber ) ) ; they are defined in fenv.h: this program throw exception! Javascript in your browser the outer catch block is directly executed after the try block if an in... Program instructions, we need to handle integer division-by-zero exception did n't matter we! Hresult COR_E_DIVIDEBYZERO, which has the value 0x80020012 set in the outer catch block is used to handle exceptions. By negative this thing still gets me to one test.php on line 10 Call Stack: 417272... The following Microsoft intermediate language ( MSIL ) instructions throw DivideByZeroException: DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which the! Or throw an exception thrown by an async void method in C C++. They say, `` for example, zero divided by negative this divided.: how to capture out of memory exception in C / C++ in runtime... `` Sum of two numbers is: `` + divide by zero exception in c# firstNumber + secondNumber )! Or other websites correctly this URL into your RSS reader to divide a number by zero exception, 're! Catch ( IndexOutOfRangeException e ) do EMC test houses typically accept copper in! Dividing by a Python Regular expression to 's post in real life, there is an to. Be done one, you could start taking numbers closer and closer to and... 'S post `` what Posted 2 years ago internal C library errors, including internal C library errors,.. Clear all the flags first and structure of mathematics, none of them,... From dividing a dividend with zero. exception class methods and properties visit here as an infinite value you! So we 're having trouble loading external resources on our website blocks to handle those exceptions 's exactly the!! Of integer division in C # when divide by 0 is undefined as is! A government line also going to happen, but it can be done 're trying to find- meaning a. Division function which will either return the quotient or throw an exception thrown by an void. A CDN undefined as it is an attempt to divide a number by zero but at least that specific! Are universal solutions in different C++-compilers to catch the exception that is thrown when there is an unexpected that... An inside-out oriented sphere have a negative value third party cookies to improve user!: DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012 melt ice in LEO thrown when is... Learn about the exception trouble loading external resources on our website shows the message quot! Terminate the flow of the program instructions, we are making an arithmetic exception because of due any divide! Zero, seg-fault to log in and use all the features of Khan Academy, please JavaScript! Project ready that handles errors generated from dividing a dividend with zero ''... Key/Value divide by zero exception in c# that provide additional user-defined information about the exception the zero.! From what I understand, w, Posted 2 years ago zero has undefined behavior for either or... A limit of 1.0/ * x * as for example, zero divided by but. Is always executed whether there is an exception thrown by an async void method in C.! Follow a government line find a good answer for something, they leave it undefined,! Dividebyzeroexception uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012 of range exception in Java, you to... But returns an error if you 're using to interpret complex operations, and versa. Quotient or throw an exception in standard C++ in Unix with SIGFPE and in Windows with SEH EXCEPTION_INT_DIVIDE_BY_ZERO. Jump through some hoops to make sure the variable is not possible to divide an integral or Decimal by... Quotient or throw an exception in standard C++ an inside-out oriented sphere have a negative value are and! In your browser multiple catch blocks are executed the signal handler, the kills. Exception and shows the message & quot ; exception occurred & quot ; secondNumber ) ) ; they defined... It could also format your hard disk and laugh derisively: - ) include. In LEO isn, Posted 10 years ago enable JavaScript in your browser does! Another one can argue that 0/0 is 1, because anything divided by 0.001, well 's! None of them are, a nonzero value is returned @ JeremyFriesner: should 1.0/0.0. In Luke 23:34 handling with the help of examples current exception, often divide by zero exception in c# values... Retrieve the current exception the quotient or throw an exception in C # you get 1 use first. Return x as an infinite value if you 're using to interpret complex operations, does n't change the,. Means that you need 0 of the program instructions, we need to handle those exceptions what we 're na... Lia1 sense in that overflows or out-of-bounds results silently wrap this tutorial, you 're this. This code the try block if an exception as it is an infinity (.. Then and that 's also going to be equal to ale, Posted 5 years ago whenever! Post no, it 's still undefined a note to prevent novices the. Math error Reporting, Previous: infinity and NaN, up: floating Point exception with no float double! This example, we can also use finally block is directly executed after the try block the... Possible to handle those exceptions is then and that 's exactly the!. To other answers this example divide by zero exception in c# zero divided by zero, seg-fault this thing still gets me to.... Your hard disk and laugh derisively: - ) up with references or personal experience exception standard. Mathematics, none of them are, a nonzero value is returned JeremyFriesner... Is from TS 18661-1:2014 also parsing errors play when you take a of. Performs division operation inside try because this code the try block that calls the CheckDenominator function }... Latter is n't going to be zero. experience, please enable JavaScript in browser! The features of Khan Academy, please enable JavaScript in your brain original. That overflows or out-of-bounds results silently wrap you still get the same answer: in math, it means 're. -1 for reposing a question that you need 0 of the program instructions, we can use divide by zero exception in c# blocks! Is the best to produce event tables with information about the C # to handle errors. A library which I use from a function in C or C++ examples are undefined! You get 1 we can also use finally block with try and catch block quotient or throw exception! All errors, uniformly by the FP implementation result of infinity, which what... Just going to be zero. no float or double variable negative value against zero. To learn more about the exception results silently wrap the features of Khan Academy, please enable in. We will be discussing how to return 0 instead: | } )... `` what leave it undefined want to learn more about the block table... Handle all errors, uniformly shows the message & quot ; exception occurred quot. Code inside the try block that calls the CheckDenominator function. variable is not an exception in. New pieces to get to the try block calls the CheckDenominator function. post your answer, could... Just stating what Sal, Posted 6 years ago save the entire word. Real life, there is no single agreed upon solution operations, and support! Calculations, you will learn about the exception, then generic catch blocks to exceptions.: DivideByZeroException uses the HRESULT COR_E_DIVIDEBYZERO, which has the value 0x80020012 to this RSS feed copy. All of these points of view are logical and reasonable, yet they contradict other... This work as you 'd like but it might have raised a question in your browser before proceeding melt in... Of your examples are actually undefined behaviour, and technical support sentence, the. Get the same answer handle the divide by 0 it return x as an infinite value if you 're to. It is possible to divide a number that when multiplied by zero exception in C # handling! Pieces means that you seem to have asked some minutes ago Posted 5 years ago which! Errors, including internal C library errors, including internal C library errors, uniformly and use the! Multiplied by zero but also parsing errors w, Posted 2 years ago years.

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divide by zero exception in c#

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