gcc error undefined reference to sqrt Verplanck New York

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gcc error undefined reference to sqrt Verplanck, New York

You need #include . –hennes Mar 9 '11 at 16:34 Do you mean #include? –Nick Mar 9 '11 at 16:34 Which complains, the linker or the compiler? current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. What happens if one brings more than 10,000 USD with them in the US? Developing web applications for long lifespan (20+ years) How to deal with sewage on a map with no water anywhere Is there a Korean word for 'Syllable Block'?

asked 5 years ago viewed 54693 times active 7 months ago Visit Chat Linked -4 how to use clang compile c file with math.h? 34 Why am I getting “undefined reference Why microcontroller takes many clock cycles to start up with PLL clock source? Anyone Understand how the chain rule was applied here? Do you see any problem here?

P: n/a John I'm trying to use the sqrt() function in Linux with GCC v3.3.6, compiling with this command: $ gcc sourcefile.c I get this error: In function 'main': undefined reference How to show hidden files in Nautilus 3.20.3 Ubuntu 16.10? I'm using gcc how should i do it? 03-31-2008 #4 Cactus_Hugger View Profile View Forum Posts int x = *((int *) NULL); Join Date Jul 2003 Location Banks of the River vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd.

share|improve this answer edited May 2 '12 at 7:00 answered May 2 '12 at 6:55 Abhijit 36.2k649115 add a comment| up vote 4 down vote This is a likely a linker The time now is 03:09 AM. Is the NHS wrong about passwords? How do I say "best practice" in Esperanto?

Mar 9 '11 at 18:52 add a comment| 2 Answers 2 active oldest votes up vote 52 down vote accepted You may find that you have to link with the math By that, I mean they may process the libraries in sequence and only use them to satisfy unresolved symbols at that point in the sequence. Not the answer you're looking for? Unsubstantiated Is the NHS wrong about passwords?

As I said I only try to do a library "sparse_matrix" that need "sqrt" function from "libmath". –Alexandre Pieroux Dec 15 '14 at 1:36 1 @Alex, check if there actually Join them; it only takes a minute: Sign up Why am I getting “undefined reference to sqrt” error even though I include math.h header? share|improve this answer edited Mar 7 at 14:10 answered Mar 9 '11 at 16:34 paxdiablo 490k1179721421 sry, I have written it badly, sure it is include... wouldn't work because, at the time of processing libm, there were no unsatisfied symbols so nothing was extracted.

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Get Started with C or C++ C Tutorial C++ Tutorial Get the C++ Book All Tutorials Advanced Search Forum General Programming Boards C Programming undefined reference to `sqrt' when using math.h Developing web applications for long lifespan (20+ years) Filter columns basing on the value of other column Is it illegal for regular US citizens to possess or read documents leaked by In Harry Potter book 7, why didn't the Order flee Britain after Harry turned seventeen? They should have no effect on the compilation stage (unless they affect both compile and link stages but -l isn't one of those).

link answered 04 Jan '15, 17:52 damn_me 2.6k●2●12●34 accept rate: 24% include is not working in my program, Its giving "No such file or directory " (04 Jan '15, 17:56) jaggiz Current Project: Vocab Builder Blog: http://noeffclue.blogspot.com Adv Reply July 12th, 2011 #3 dwhitney67 View Profile View Forum Posts Private Message Tolerant of Ubuntu Join Date Jun 2007 Location Maryland, US up vote 34 down vote favorite 12 I'm very new to C and I have this code: #include #include int main(void) { double x = 0.5; double result = In fact, with a dummy sparse_matrix.c of: #include int main(void) { return (int)(sqrt(16.0)); } your command works fine and, when I complete the process with: pax> gcc -o sparse_matrix sparse_matrix.o

Why was the identity of the Half-Blood Prince important to the story? basic HTML tags are also supported mathemetical formulas in Latex between $ symbol learn more about Markdown Tags: gcc-4.8.1 ×24 gcdqueries ×9 Asked: 04 Jan '15, 16:45 Seen: 4,247 times Last Is there any way to know when NOT to use my Oyster card? If you can post the exact error that'd probably clear things up. –Tommy Mar 9 '11 at 16:36 compiler write this complain, problem is, that app don't even built...

Back to the top Aug 4 '06 #4 This discussion thread is closed Start new discussion Replies have been disabled for this discussion. Forum Today's Posts C and C++ FAQ Forum Actions Mark Forums Read Quick Links View Forum Leaders What's New? What's behind the word "size issues"?

You must link your code with the -lm option. Creating a game, from start to finish Recent additions How to create a shared library on Linux with GCC - December 30, 2011 Enum classes and nullptr in C++11 - Thank, I'm not that ease with library and I thought I could link a lib into another. share|improve this answer edited Dec 15 '14 at 1:38 answered Dec 15 '14 at 1:02 paxdiablo 490k1179721421 Thank!

It has also been separated from libc onto a separate library libm. Browse other questions tagged c or ask your own question. At the point where you list the library, there are no unresolved symbols to satisfy. Remember that number in C/C++ will be stored likely deque.

How exactly does the typical shell "fork bomb" calls itself twice? recursion (re - cur' - zhun) n. 1. (see recursion) 03-31-2008 #5 Milhas View Profile View Forum Posts Banned Join Date Mar 2008 Posts 78 Thanks! The reason it works with a constant argument is because sqrt is allowed to be implemented as a builtin. Mein KontoSucheMapsYouTubePlayNewsGmailDriveKalenderGoogle+ÜbersetzerFotosMehrShoppingDocsBooksBloggerKontakteHangoutsNoch mehr von GoogleAnmeldenAusgeblendete FelderNach Gruppen oder Nachrichten suchen You are not logged in.

In that case, the linker should not be called at all. I have found that I've had -lm too early in the command line and that moving it to the end solves related error messages. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed of the atom whose 1s electron moves nearly at the speed of light?

asked 4 years ago viewed 82663 times active 7 months ago Linked 0 Compilation error with c 0 gcc wont find sqrt even with -lm parameter 168 Why do you have more hot questions question feed lang-c about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Compute the kangaroo sequence What happens if one brings more than 10,000 USD with them in the US? Please login at www.codechef.com to post your questions! × questionstagsusersbadgesunanswered ask a question about faq CodeChef Discussion questions tags users Math.h in gcc,undefined reference to sqrt---GCD Queries 0 I am using

User contributions on this site are licensed under the Creative Commons Attribution Share Alike 4.0 International License. Given you're separating compilation from link stages, it's likely that it exists in another C file.