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Undefined Reference To C Programming Error


You'll need to specify both files, something like: gcc testpoint.c point.c ...so that it knows to link the functions from both together. I believe you need OBJS+= lines for these. –caveman Jan 11 '15 at 11:17 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote As well as 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 Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started check over here

Latest LQ Deal: Linux Power User Bundle Blogs Recent Entries Best Entries Best Blogs Blog List Search Blogs Home Forums HCL Reviews Tutorials Articles Register Search Search Forums Advanced Search Search i can not compile a code i ran into these errors: ngram-count.o:ngram-count.cc: (.text+0xa9): undefined reference to `_Opt_Parse' ngram-count.o:ngram-count.cc: (.text+0x11f): undefined reference to `Vocab::Vocab(unsigned int, unsigned int)' ngram-count.o:ngram-count.cc: (.text+0x204): undefined reference to share|improve this answer answered Apr 5 '11 at 22:22 Cam 8,3731049102 add a comment| up vote 0 down vote Add the "extern" keyword to the function definitions in point.h share|improve this Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk [SOLVED] compiling with gcc page

How To Solve Undefined Reference Error In C

C programming resources: GNU C Function and Macro Index -- glibc reference manual The C Book -- nice online learner guide Current ISO draft standard CCAN -- new CPAN like open Returns the number of tokens read. * * void write(File &file) * Write the current set of word tokes to a file, in random order. * * NOTE: While an iteration Usually this is done through a Makefile. Not the answer you're looking for?

  • I skip those errors.
  • It works now. –user1550876 Feb 28 '13 at 17:27 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using
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  • but some library like needn't I list in the compiling line.

Find More Posts by skelly 04-27-2008, 06:36 PM #8 frazneo LQ Newbie Registered: Apr 2008 Location: Penza, Russian Federation Distribution: Fedora 8 Posts: 1 Rep: Thank you, Dark_Helmet. Last edited by acer_peri; 05-28-2004 at 12:03 AM. Why must do the extra work to specify the library in gcc, cosidering that I'm already include it in the source file? Undefined Reference To Function Error In C++ You are currently viewing LQ as a guest.

The linker could not find a function with the name Print_hello. Undefined Reference To A Function C++ index is set to the corresponding * index. * * unsigned int read(File &file) * Read a word list from a file into the Vocab, implicitly performing * an addWord() on In the end I have resorted to trying to test it with c (something I promises myself I would try to learn) and with the help of this post solved my http://stackoverflow.com/questions/15141122/how-to-solve-undefined-reference-to-function-error Search Engine Optimisation provided by DragonByte SEO v2.0.32 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Your compilation command should be something like: $ gcc -o testncurses.o -lncurses testncurses.c Dark_Helmet View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by Undefined Reference Error In C Compilation Here's the header file, point.h: //type for a Cartesian point typedef struct { double x; double y; } Point; Point create(double x, double y); Point midpoint(Point p, Point q); And here's I know nothing about linux and makefiles. 06-25-2011 #9 MK27 View Profile View Forum Posts spurious conceit Join Date Jul 2008 Location segmentation fault Posts 8,300 Originally Posted by andereasmehdi you Output a googol copies of a string Why cast an A-lister for Groot?

Undefined Reference To A Function C++

As I wrote, I really would appreciate any help. website here Here is my make file if you are interested: # # Makefile # PROGS= ngram-count trainmodel lsalm CXX = g++ #for compiling C files CC = cc #change the following variable: How To Solve Undefined Reference Error In C Subscribed! Undefined Reference To Function Error In Gcc But you know I ran into another one.

Furthermore, when copied or used in initialization of other objects, * VocabIter objects retain the current "position" in an iteration. check my blog Your compilation command should be something like: $ gcc -o testncurses.o -lncurses testncurses.c thanks, Dark_Helmet! current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. share|improve this answer edited Feb 28 '13 at 17:20 answered Feb 28 '13 at 16:58 Mike 22.4k1262126 It's my fault, I've edited the post so it's now accurate. C Undefined Reference To Function In Header File

Adv Reply February 14th, 2011 #2 Arndt View Profile View Forum Posts Private Message Ubuntu Cappuccino Scuro Join Date May 2006 Beans 1,787 Re: compiling with gcc and "undefined reference How strange is it (as an undergrad) to email a professor from another institution about possibly working in their lab? I checked the include addresses in makefile and all are right. this content thenewboston 418,417 views 9:22 Linux Understanding Shared Libraries - Duration: 15:47.

Personally I would compile all of the FreeRTOS files separately as an individual step, then combine them into an archive file, say libFreeRTOS.a which you can then link against using -lFreeRTOS C Undefined Reference To Pthread_create You typically store this in a file named Makefile, and to build your program, you just type make at the command line. Getting started with C or C++ | C Tutorial | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: Can't Compile a code!!!

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How do we play with irregular attendance? So either you've got all the files, and just never bothered to write those six functions, or you are missing the file that contains those functions. 06-21-2011 #3 dwks View Profile What is the "Chairman Tree"? C Undefined Reference To Variable You get is expanded with $(OBJS).

Where are these header and source files located? –Mike Feb 28 '13 at 16:55 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted You need Autoplay When autoplay is enabled, a suggested video will automatically play next. asked 1 year ago viewed 3336 times active 1 year ago Related 11PIC18F4550 C-compiler that's open-source & cross-platform?4What PIC24 C compilers are out there, and what is your opinion or review http://centralpedia.com/undefined-reference/undefined-reference-to-c-error.html Is there a word for "timeless" that doesn't imply the passage of time?

Also, the "undefined reference" is your big clue from the linker. Main Menu LQ Calendar LQ Rules LQ Sitemap Site FAQ View New Posts View Latest Posts Zero Reply Threads LQ Wiki Most Wanted Jeremy's Blog Report LQ Bug Syndicate Latest Lengthwise or widthwise. Show more Language: English Content location: United States Restricted Mode: Off History Help Loading...

Why is this Sudoku Skyscraper Failing? buzzhost View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by buzzhost Thread Tools Show Printable Version Email this Page Search this Thread Advanced maybe you want to see Array.cc: Code: /* * Array.cc -- * Extensible array implementation * */ #ifndef _Array_cc_ #define _Array_cc_ #ifndef lint static char Array_Copyright[] = "Copyright (c) 1995,1997 SRI Try compiling it as gcc Main.c Person.c -o MyProgram.

Permission denied. C is case-sensitive. When I look in common.h I find int initLog(int useSyslog, char *logfile,int debugSwitch); and looking in common.c (also in the same directory) I find int initLog(int useSyslog, char *logfile,int debugSwitch) { I have since attempted to add and use FreeRTOS in my program.

Surely you can take that one file into more than one file? 06-25-2011 #11 andereasmehdi View Profile View Forum Posts Registered User Join Date Jun 2011 Posts 10 hi @MK27: thanks Thus, Vocab essentially * implements a symbol table into which strings can be "interned." * * INTERFACE * * VocabIndex(VocabIndex start, VocabIndex end) * Initializes a Vocab and sets the index Sign in to add this to Watch Later Add to Loading playlists... That error means it saw the function was defined (in the header), but couldn't locate the actual code to execute it.

Click Here to receive this Complete Guide absolutely free. If you are ever passing through the Alps I owe you a huge beer. Loading... The thing that I find wierd is that it doesn't have a problem with the structures that are defined in XPM_lib , only with the functions. –user1550876 Feb 28 '13 at