CODEWITHSUNDEEP
c++gcc
user2931629
user2931629

Reputation: 9

Error when compiling via g++ on terminal on Mavericks

I used g++ compiler and used terminal for compiling single c++ files and projects as well (under project I mean files in the same dir, but not a real Xcode project). I had no problems, but I upgraded to OS X Mavericks, and from that point, I am only able to compile single files. After that, I installed Xcode 5.0.1, and installed command line tools, but didn't solve my problem.

So now I am using OS X 10.9 Mavericks Xcode 5.0.1 (5A2053).

I thought, the problem is with my source code, but now I've made a really simple program, but I get the same error:

Steve-MacBook:test szaboistvan$ g++ -o main main.cpp
Undefined symbols for architecture x86_64:
  "Myclass::geta()", referenced from:
      _main in main-0bDtiC.o
  "Myclass::getb()", referenced from:
      _main in main-0bDtiC.o
  "Myclass::Myclass()", referenced from:
      _main in main-0bDtiC.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

The files of the project: main.cpp

#include <iostream>
#include "Myclass.h"
using namespace std;



int main(){

    Myclass one;
    cout<<one.geta()<<endl<<one.getb()<<endl;

    return 0;
}

Myclass.h

#include <iostream>

class Myclass
{
private:
    int a;
    double b;
public:
    Myclass();
    int geta();
    double getb();
};

Myclass.cpp

#include <iostream>
#include "Myclass.h"
using namespace std;

Myclass(){
    int a=5;
    double b=3.0;
}

int geta(){
    return a;
}

double getb(){
    return b;
}

Thank you in advance!

Upvotes: 0

Views: 370

Answers (1)

mjs
mjs

Reputation: 3004

Unless I am being thick (hint, I am not), you havent implemented

MyClass::geta(). Instead, you implemented a function called geta

Your class methods should be like:

MyClass::Myclass()
{
    int a=5;
    double b=3.0;
}

int MyClass::geta()
{
    ....
}

etc

In addition, you cant be compiling MyClass.cpp, since the code in there is not valid.

Upvotes: 1

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