https://stackoverflow.com › questions › 5559250
C error: undefined reference to function, but it IS definedYou'll need to specify both files, something like: gcc testpoint.c point.c. ...so that it knows to link the functions from both together. With the code as it's written right now, however, you'll then run into the opposite problem: multiple definitions of main.
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 as well - otherwise you'd have gotten a different error at compile time)).
The first says there is a function but the argument list is not specified (it's not a variable arguments function, but the number and types of the arguments are not specified). The second says the function takes no arguments.
https://stackoverflow.com › questions › 8024440
What causes the error "undefined reference to (some function)"?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 as well - otherwise you'd have gotten a different error at compile time)).
https://openclassrooms.com › forum › sujet › les-sources-de-l-erreur-undefined-reference-to
Les sources de l'erreur "undefined reference to" - OpenClassroomsCette erreur est très simple, mais fréquente chez le débutant ! On la rencontre très souvent sur les fonctions, la fonction est bien déclarée, donc la compilation est effectuée, mais le problème se trouve au moment de l'édition des liens, le linker ne trouve pas la définition de la fonction !
https://www.geeksforgeeks.org › fix-undefined-reference-error-in-cpp
How to Fix Undefined Reference Error in C++? - GeeksforGeeksIn C++, the undefined reference error typically occurs during the linking phase of compilation. This error indicates that the compiler knows about a function or variable (it has been declared), but it cannot find the actual implementation (definition) during the linking process.
https://thelinuxcode.com › undefined-reference-function-c
Resolving the Frustrating "Undefined Reference" Error in CAn undefined reference error occurs when you call a function that is declared but not defined anywhere accessible to the compiler. Since the function body is missing, the compiler raises this error when linking the object files together into an executable.
https://www.developpez.net › forums › d2057214 › c-cpp › c › probleme-erreur-undefined-reference...
Probleme erreur : undefined reference to 'fonction' - C - Developpez.comJ'ai un problème d'erreur sur mon programme sur Codeblocks. J'ai essayé de réinstaller Codeblocks mais ça ne marche pas. À la ligne 9, ça me met « undefined reference to 'intervalle' » et ça à chaque fonction. Merci d'avance.
https://openclassrooms.com › forum › sujet › undefined-reference-to-ma-fonction-en-c-36182
undefined reference to (ma fonction) en C. - OpenClassroomsundefined reference to (ma fonction) en C. Compilation séparée... Sujet résolu. Tetdoss. 16 décembre 2009 à 15:26:22. Bonjour à tous, j'ai longuement essayé de résoudre mon problème seul mais rien y fait. Comment compiler un projet avec plusieurs .c et .h ? J'ai fait une capture d'écran pour visualiser le problème...
https://towardsdev.com › navigating-undefined-reference-errors-in-programming-causes-and...
Navigating Undefined Reference Errors in Programming: Causes and ...An undefined reference error occurs during the linking phase of compilation when the compiler can’t locate the definition of a function or variable declared elsewhere. Potential Causes: Missing Function Definitions: If a function is declared but not defined, the linker can’t find its implementation.
https://askubuntu.com › questions › 1348199
compiling - C++ Undefined reference to a function - Ask UbuntuAdding #include "Helper.h" to your main.cpp makes the declaration of Helper::IsStringNumeric visible to the compiler, but you still need to compile Helper.cpp to object code in order to make the definition of Helper::IsStringNumeric available when you link your main program.
https://www.delftstack.com › howto › cpp › cpp-undefined-reference-to-class-function
Undefined Reference to Class::Function() in C++ - Delft StackThis tutorial briefly discusses one of the most common and equally critical errors in C++ programming (i.e., Undefined Reference to a Class::Function()). First, we will briefly discuss different errors while coding in C++. Then, we will explain the causes and fixes for the undefined reference error.
