If I do "man sqrt", I see the following. 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 Unsubstantiated Is the NHS wrong about passwords? If the WA is continue, you must check your logic, limits, MLE, overstacking, overflows, etc... http://xhpcreations.com/undefined-reference/undefined-reference-to-sqrt-collect2-ld-returned-1-exit-status.html
It looks like everything should be okay. 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 What are oxidation states used for? Note that the linking instruction is provided in the synopsis. pop over to these guys
How to draw a path with coordinates defined by f(x) IQ Puzzle with no pattern How should I interpret "English is poor" review when I used a language check service before problem is, that app don't even built... –Waypoint Mar 9 '11 at 16:40 I have addet there -lm through build, now I have another mistakes but this is solved! All Rights Reserved. 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
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? Some linkers are positional in the way they handle libraries in that they will only extract objects from libraries if they satisfy an undefined symbol at the point where they're listed. All Rights Reserved. Bash ./a.out No Such File Or Directory How to show hidden files in Nautilus 3.20.3 Ubuntu 16.10?
Is sqrt() not in the math.h header file? By Matt3000 in forum C Programming Replies: 12 Last Post: 07-07-2006, 04:42 PM c++ linking problem for x11 By kron in forum Linux Programming Replies: 1 Last Post: 11-19-2004, 09:18 AM Join Date Sep 2006 Location BC, Canada Beans 347 DistroUbuntu 10.10 Maverick Meerkat Re: gcc: undefined reference to `sqrt' even if I included math.h You need to link the math library. How to do this varies by environment, but in Linux/Unix, just add -lm to the command: gcc test.c -o test -lm The math library is named libm.so, and the -l command
You must link your code with the -lm option. Sqrt In C Without Using Sqrt Function h functions are “undefined references” in Ubuntu0undefined reference to sqrt(geany)3It's really strange that sometimes gcc can't find reference of sqrt but sometimes gcc can0Why am I getting the error, “undefined reference Where are sudo's insults stored? Not the answer you're looking for?
So, the command: linker sparse_matrix.o -lm ... learn this here now Is there any way to know when NOT to use my Oyster card? Undefined Reference To Sqrt Ubuntu Can cats leave scratch marks on cars? Undefined Reference To Sqrt Makefile and I compile with this command: gcc -c ./sparse_matrix.c -o sparse_matrix.o -lm -Wall -pedantic -std=c99 -g -O But even with the #include done and the flag -lm after the file (I've
Forum Today's Posts C and C++ FAQ Forum Actions Mark Forums Read Quick Links View Forum Leaders What's New? Flow Chart with tikzpicture: particular tipes of arrows How do I say "best practice" in Esperanto? Thank for any help in advance! navigate here Is there a role with more responsibility?
Browse other questions tagged c or ask your own question. Undefined Reference To `sqrtf' 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. You won't get that error from that command line.
Anything I missed? But, based on the error message reported ("undefined reference to `sqrt' collect2: ld returned 1"), I do not think the linking succeeded. –Arun Apr 2 '13 at 17:39 With Bar to add a line break simply add two spaces to where you would like the new line to be. http://xhpcreations.com/undefined-reference/gcc-undefined-reference-to-function.html c sqrt share|improve this question edited Apr 1 '13 at 12:41 alk 45k53497 asked Apr 1 '13 at 12:16 Chandu 311416 1 For sqrt() you need to reference the math
link answered 04 Jan '15, 17:52 damn_me 2.6k●2●12●34 accept rate: 24% include