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POUndefined reference to class::function
 

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    <p>I've been doing C programming for uni and in my spare time I'm moving onto c++ and am trying to start with classes in seperate files and whatnot, but I'm getting some problems when trying to make my project. I'm using the following makefile</p> <pre><code>EXEC = main OBJS = main.o Bunny.o Name.o Board.o CC = g++ CFLAGS = -Wall -Wextra -Werror LIBS = LDFLAGS = $(EXEC): $(OBJS) $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBS) .PHONY: clean clean: rm -f $(EXEC) $(OBJS) run: ./$(EXEC) </code></pre> <p>Which is just an altered version of my C one so it might be that, and here are the relevant other files</p> <p>main.cpp</p> <pre><code>#include &lt;iostream&gt; #include "Name.hpp" #include "definitions.hpp" int main() { Name nameContainer; nameContainer.initMaleNameValidArray(); std::cout &lt;&lt; "Got to just before the return!\n" &lt;&lt; std::endl; return 0; } </code></pre> <p>Name.cpp</p> <pre><code>#include &lt;iostream&gt; #include &lt;fstream&gt; #include &lt;string&gt; #include "definitions.hpp" class Name{ public: void initFemaleNameArray() { std::ifstream myReadFile; myReadFile.open("girlsnames.txt"); char output[100]; if (myReadFile.is_open()) { while (!myReadFile.eof()) { myReadFile &gt;&gt; output; std::cout&lt;&lt;output; } } myReadFile.close(); } void initMaleNameArray() { } void initFemaleNameValidArray() { static int femaleValidArray[GIRLS_NAMES] = {0}; } void initMaleNameValidArray() { static int MaleValidArray[GIRLS_NAMES] = {0}; } void freeAFemaleName(std::string name); void freeAMaleName(std::string name); std::string returnFreeFemaleName(); std::string returnFreeMaleName(); private: std::string femaleNameArray[GIRLS_NAMES]; std::string maleNameArray[BOYS_NAMES]; int femaleValidArray[GIRLS_NAMES]; int maleValidArray[BOYS_NAMES]; }; </code></pre> <p>Name.hpp</p> <pre><code>#ifndef NAME_HPP #define NAME_HPP #include "definitions.hpp" class Name{ public: void initFemaleNameArray(); void initMaleNameArray(); void initFemaleNameValidArray(); void initMaleNameValidArray(); void freeAFemaleName(std::string name); void freeAMaleName(std::string name); std::string returnFreeFemaleName(); std::string returnFreeMaleName(); private: std::string femaleNameArray[GIRLS_NAMES]; std::string maleNameArray[BOYS_NAMES]; int femaleValidArray[GIRLS_NAMES]; int maleValidArray[BOYS_NAMES]; }; #endif </code></pre> <p>And the error im getting when running make is:</p> <pre><code>mark@Mark-Linux:~/Documents/Misc/C++/Bunny$ make g++ -c -o main.o main.cpp g++ -c -o Bunny.o Bunny.cpp g++ -c -o Name.o Name.cpp g++ -c -o Board.o Board.cpp g++ -o main main.o Bunny.o Name.o Board.o main.o: In function `main': main.cpp:(.text+0x26): undefined reference to `Name::initFemaleNameArray()' collect2: ld returned 1 exit status make: *** [main] Error 1 </code></pre> <p>At the moment I'm just trying to see if I can use a method from a class in a different file hence the incompleteness of the code.</p> <p>Sorry about the wall of text but I'm well and truly stumped, so if anyone could offer any advice that'd be greatly appreciated.</p>
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    1. USChristian Rau
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    1. CONot related to your question, but ... you want `CXX=g++` and `CXXFLAGS== -Wall -Wextra -Werror` in your makefile.
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      1. USRobᵩ
 

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