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Undefined Reference To Error


Hot Network Questions 2011 MacBook Pro upgrade? Lack of research or effort. But when I try to compile my test.c file I get an "undefined reference to initXPM_image" error. By continuing to use our site, you consent to ARM’s Privacy Policy. weblink

Join them; it only takes a minute: Sign up What causes the error “undefined reference to (some function)”? [duplicate] up vote 7 down vote favorite This question already has an answer current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Trick or Treat polyglot How do we play with irregular attendance? How to apply for UK visit visa after four refusal Origin of “can” in the sense of ‘jail’ My advisor refuses to write me a recommendation for my PhD application unless http://stackoverflow.com/questions/8024440/what-causes-the-error-undefined-reference-to-some-function

Undefined Reference To C++ Error

Solutions? For example: g++ -o main Hash.cpp main.cpp will create the main program called "main". Don't you have a Hash.cpp to also compile and link? Die Liebe höret nimmer auf Given a limit with notation f, how would you solve?

Which towel will dry faster? thanks in advance=) Last edited on Aug 28, 2012 at 5:47pm UTC Aug 28, 2012 at 5:48pm UTC NwN (1276) Hi there, Have you compiled all of the cpp files? Print some JSON Encode the alphabet cipher Lengthwise or widthwise. C++ Undefined Reference To Class The column averages are: \n"); for(i = 0; i < x; i++) { for(j = 0; j < y; j++) { sum += a[i][j]; colAvg = sum / (float)x; } printf("Column:

Main.c: #include #include "Person.h" int main() { struct Person1 p1 = Person1_Constructor(10, 1000); } Person.c: #include #include "Person.h" struct Person1 Person1_Constructor(const int age, const int salary) { struct Person1 Linker Error Undefined Reference To Function In C If those answers do not fully address your question, please ask a new question. Former boss asking me to do presentations Separate namespaces for functions and variables in POSIX shells Do pulled hair from the root grow back? http://stackoverflow.com/questions/5559250/c-error-undefined-reference-to-function-but-it-is-defined What game is the guard playing in this picture?

In this case you'd have something like this: OBJS=testpoint.o point.o testpoint.exe: $(OBJS) gcc $(OJBS) The first is just a macro for the names of the object files. C++ Undefined Reference To Constructor Given a limit with notation f, how would you solve? All rights reserved. But it's a real question, so no closing. –Omnifarious Jan 28 '13 at 8:13 1 Sorry it's been almost a year since I last used c++.

  1. Does DFT produces the same output as FFT?
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  3. Header.mak (makefile template): CFLAGS = -Wall -Wextra -pedantic -std=c99 -ggdb LFLAGS = -ggdb LDFLAGS = Makefile relevant contents: CPP_FILES = C_FILES = net.c sim.c PS_FILES = S_FILES = H_FILES = net.h
  4. It normally looks roughly like this: .c.o: $(CC) -c $(CFLAGS) $< This assumes the name of the C compiler is in a macro named CC (implicitly defined like CC=gcc) and allows
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Linker Error Undefined Reference To Function In C

Yes No Not Sure Products Development Tools ARM C166 C51 C251 µVision IDE and Debugger Hardware & Collateral ULINK Debug Adaptors Evaluation Boards Product Brochures Device Database Distributors Downloads http://stackoverflow.com/questions/26820736/linking-error-undefined-reference-to-functions-thatre-defined-in-a-separate-fi Watching order for the Dan Brown films? Undefined Reference To C++ Error When using the g++ frontend, you can do this by specifying all the source files together on the command line. Undefined Reference To Function C++ Check out this tutorial on makefiles: Make File Tutorial It helps to automate this process.

Print some JSON Separate namespaces for functions and variables in POSIX shells Why is the size of my email so much bigger than the size of its attached files? http://centralpedia.com/undefined-reference/undefined-reference-to-error-in-gcc.html Encode the alphabet cipher How to select citizen justices? I'll keep the naming convention in mind! In C++ main() is an int, so you can return 0; in main() when you want to exit the program. Undefined Reference Error In C

Usually this is done through a Makefile. The linker could not find a function with the name Print_hello. I have a main file, sim.c, a header file net.h, a header file friends.h, and a file with the functions, net.c. check over here Origin of “can” in the sense of ‘jail’ Enable Wireless on Fresh Debian Build How to make Skyscanner, Kiwi, Kayak include ground transfer in the search Given that ice is less

Watching order for the Dan Brown films? Undefined Reference To Static Variable C++ What is way to eat rice with hands in front of westerners such that it doesn't appear to be yucky? Thank you everyone. –upswimsdn Apr 5 '11 at 22:51 1 Yes that was an additional problem I ran into, but the main problem was not compiling the two files together

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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 If those answers do not fully address your question, please ask a new question. @Satya uh, why ? Modify functions in R using body, formals and environment methods Using DC in transformers? C++ Undefined Reference To Function In Class The reason for that is that the function you've defined is called averagecolumns (in other words: you misspelled the function name when calling the function (and presumably in the header file

Why is the FBI making such a big deal out Hillary Clinton's private email server? Given that ice is less dense than water, why doesn't it sit completely atop water (rather than slightly submerged)? Now, I have made the XPM_lib.h and XPM_lib.c files and also my test.c file. this content asked 1 year ago viewed 2165 times active 1 year ago Related 30Linker error: “linker input file unused because linking not done”, undefined reference to a function in that file4Undefined reference

Update your command to include the file which contains the definition of that function and it should work. What game is the guard playing in this picture? 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 Player claims their wizard character knows everything (from books).

These aren't "undeclared", they're "undefined". My net.c file contains: #include "net.h" Yet any time a function in sim.c tries to call a function in net.c, it errors on that line with: "undefined reference to `function_name`". It seems to me like the menu_and_intro.cpp file was not supplied to the compiler, so it can't find the definitions for the functions. That means that either You're not linking with net.o net.c (as compiled) does not contain a definition for function_name -- by 'as compiled' I mean with all of the various preprocessor

How strange is it (as an undergrad) to email a professor from another institution about possibly working in their lab? Quick Navigation C++ Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums General Programming Boards C++ Programming C Programming C# Programming Game Programming Networking/Device Communication That's why it doesn't find symbols. What are the large round dark "holes" in this NASA Hubble image of the Crab Nebula? 2011 MacBook Pro upgrade?

If those answers do not fully address your question, please ask a new question. 1 That's not a compiler error. –chris Jan 28 '13 at 7:56 1 -1 for more hot questions 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 Science Other Player claims their wizard character knows everything (from books). I have a Person.c and a Person.h whats wrong with that ? –dimitris93 May 2 '15 at 4:46 gcc two .c files together –user3528438 May 2 '15 at 4:48

Browse other questions tagged c gcc undefined-reference or ask your own question. How to create a torus with divided cuts that correspond to the direction of the torus Watching order for the Dan Brown films? menu is the menu you can accsess while playing the game , thus the option to continue:: void menu(int x) // takes in int x, so we will know wich menu Forum Today's Posts C and C++ FAQ Forum Actions Mark Forums Read Quick Links View Forum Leaders What's New?