Pow Overflow Error Catch
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta pow overflow error in c Discuss the workings and policies of this site About Us Learn power overflow error in c more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us
What Is Overflow Error In C
Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Using pow() gives errors up vote 2 down vote favorite Please have a look at the following code #include #include #include using namespace std; int main() { //int side1 = 0; //int side2 = 0; //int rightSide = 0; cout << "Right Side" << setw(10) << "Side1" << setw(10) << "Side2" << endl; for(int i=1;i<=500;i++) { //side1++; //cout << side1 << endl; for(int a=1;a<=500;a++) { //side2++; //cout << "side 2 " << side2 << endl; for(int c=1;c<=500;c++) { //rightSide++; int rightSideSqr = pow(c,c); int side1Sqr = pow(i,i); int side2Sqr = pow(a,a); if(rightSideSqr == (side1Sqr+side2Sqr)) { cout << rightSideSqr << setw(15) << i << setw(10) << a << endl; } } } } } This gives an error "PythagorialTriples.cpp:28: error: call of overloaded `pow(int&, int&)' is ambiguous". This doesn't happen if I simply used manual power like i*i, instead of the method. Can someone please explain me why this is happening? I am new to C++ anyway. Thanks c++ math cmath share|improve this question asked Sep 19 '12 at 18:25 PeakGen 6,1513099204 1 Power is causing problems again? That is because the hearts of men are easily corrupted. –Xeoncross Sep 19 '12 at 18:56 okay..LOL......... –PeakGen Sep 19 '12 at 19:02 add a comment| 4 Answers 4
Programming Boards C++ Programming Catching an int overflow error Getting started with C or C++ | C Tutorial | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: Catching an int overflow error Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 06-10-2003 #1 codegirl View Profile View Forum Posts Registered User Join Date Jun 2003 Posts 76 Catching an int overflow error Hey everyone, I've got some code where I'm calculating a http://stackoverflow.com/questions/12500656/using-pow-gives-errors geometric mean: Code: include using std:: overflow_error // space to prevent a smiley! ... try { // Calculate the geometric mean of the values in array prevBids int product = 1; for (int i = 0; i < maxPrevBids; i++) { product *= prevBids[i]; } bid = (static_cast( pow (product, ( 1.00 / static_cast(maxPrevBids))))); } catch (overflow_error &e) { // Some error-handling code } Now sometimes the http://cboard.cprogramming.com/cplusplus-programming/40503-catching-int-overflow-error.html value of product gets too big for an integer, and I want to somehow catch this error when it happens. I could change it to a long, but I'd still want to catch the overflow error if it happened with a long, so the type of product doesn't really matter to my question. (I can potentially get all sorts of crazy numbers in this code and I need to be able to deal with them all!) I tried enclosing the code in a try/catch block like shown above, but when I stepped through the code with the debugger, it didn't throw an exception. It just kept trying to multiply product (resulting in some very weird values for product). If product was an invalid entry for the pow function, then an exception was thrown at the pow function. Any ideas on how I can catch or prevent this overflow error? My programs don't have bugs, they just develop random features. 06-10-2003 #2 codegirl View Profile View Forum Posts Registered User Join Date Jun 2003 Posts 76 That is amazing -- I changed it to a double and I never got that error (at least with the parameters I ran the program with). I guess
8 Replies - 5211 Views - Last Post: 24 October 2010 - 10:08 PM Rate Topic: #1 gurbet New D.I.C Head http://www.dreamincode.net/forums/topic/196296-pow-overflow-error/ Reputation: 0 Posts: 3 Joined: 22-October 10 pow: overflow error Posted 22 October 2010 - 04:37 PM hi I wrote a program in c. doesn't work. result of output is https://www.quora.com/How-do-you-throw-an-overflow-error-in-C++ "pow: overflow error". help please #include #include #include #define num_of_population 100 #define num_of_dimension 1 /*değişken*/ #define num_of_selection 3 #define UP 10 #define LB -10 #define FVAL overflow error 0.5 /* değişken*/ double function_new(double x[num_of_dimension]) { double res,sum1,sum2,r=0,z,deger,max; int i; for(z=3*M_PI/50; z<=M_PI/2; z=z+M_PI/50) { randomize(); sum1=0; sum2=0; for(i=-4; i<=4; i++) { if(i!=0) { sum1=sum1+cos(2*M_PI*x[i]*sin(z)); sum2=sum2+sin(2*M_PI*x[i]*sin(z)); } } deger=sqrt(pow(sum1/8,2)+pow(sum2/8,2)); if(r==0) max=deger; else if(deger>max) max=deger; r++; } res=max; return (res); } Edited by macosxnerd101: Please, . Also, moved to C/C++ Help. Is This A Good Question/Topic? 0 Back to overflow error in top MultiQuote Quote + Reply Replies To: pow: overflow error #2 toshiro D.I.C Head Reputation: 21 Posts: 137 Joined: 27-June 09 Re: pow: overflow error Posted 22 October 2010 - 05:40 PM Maybe the pow func inside of one of the for loops is running out of memory? What is randomize() call doing? Otherwise, i don;t think there are any infinite loops. Use printf statements to confirm. Was This Post Helpful? 0 Back to top MultiQuote Quote + Reply #3 janotte code > sword Reputation: 990 Posts: 5,141 Joined: 28-September 06 Re: pow: overflow error Posted 23 October 2010 - 03:38 AM If you don't give us a compilable program to work with then you can't really expect good help. Here is your posting turned into a compilable program. #include #include #include #include #define num_of_population 100 #define num_of_dimension 1 /*değişken*/ #define num_of_selection 3 #define UP 10 #define LB -10 #define FVAL 0.5 /* değişken*/ double function_new(double x[num_of_dimension]) { double res,sum1,sum2,r=0,z,deger,max; int i; for(z=3*M_PI/50; z<=M_PI/2; z=z+M_PI/50) { // rando
ProgrammingHow do you throw an overflow error in C++?I have tried throw UNDERFLOW, throw underflow_error, but they don't seem to work, they return a number rather than an error.UpdateCancelAnswer Wiki1 Answer Sergey Zubkov, Used smart pointers before Alexandrescu made it coolWritten 108w agoYou just throw it:#include #include void x() { throw std::underflow_error("it happened"); // or, if your title is to be believed // throw std::overflow_error("it happened"); } int main() { try { x(); } catch(const std::exception& e) { std::cout << "caught " << e.what() << '\n'; } } 1.5k Views · View UpvotesView More AnswersRelated QuestionsWhy does the following program throw a stack overflow error?Why is quicksort throw error "stack overflow" when merge sort isn't?What does this error mean in C?What does "pow overflow error" in C mean?What are the most difficult C++ errors?C (programming language): What is the error in the code below?Why does the following Java program throw a stack overflow error? What's generally good form for throwing errors (g.g. length_error) in C++11?How to fix stack overflow error?If a printf() statement in C returns an int value, why does simply writing printf ("text"); not throw an error?What is the Stack Overflow error?How can I prevent an overflow error in C++ if I need to compute a*b*c...*z and take its mod finally with 10^9+7?Why does HBase throw Ruby error often?Why does a simple piece of C code show no error in a MinGW compilation, but throws up an error in GCC under Linux(x64) (the code is given belo...How do you troubleshoot Windows internal stack overflow error?int main() { fork() } - C Prog. on UNIX system; does not throw an error even though there is no header; which would have the definition for fo...How do you fix a runtime error 6 in overflow?How do I fix SpinRite 6 "Division overflow error"?Why couldn't PHP throw fetch MySQL error?Why does PHP solution throw runtime error (NZEC) in codechef?Related QuestionsWhy does the following program throw a stack overflow error?Why is quicksort throw error "stack overflow" when merge sort isn't?What does this error mean in C?What does "pow overflo