C++ error LNK1120 and LNK2019 unresolved externals

[marijus5012]

Hey guys, I am trying to execute method, which is in another class, from main. I got all three classes in header file. When running program it says :
Error 2 error LNK1120: 1 unresolved externals D:\Year 2\Semester 2\C++\Exercises\ArraySearch\Debug\ArraySearch.exe 1 1 ArraySearch

AND


Error 1 error LNK2019: unresolved external symbol "public: void __thiscall array::print(void)" (?print@array@@QAEXXZ) referenced in function _main D:\Year 2\Semester 2\C++\Exercises\ArraySearch\ArraySearch\arraytest.obj ArraySearch


I dont know what Im doing worng. Heres my code for array.cpp

#include "array.h"



void print()
{
	cout << "something";
}

Code for main.cpp

# include "array.h"


int main(void)
{
	array* a = new array();
	a->print();
	system("PAUSE");

} 

And code for header file:

#ifndef ARRAY_H
#define ARRAY_H
#include <iostream>
#include <cstdlib>
#include <cstring>


using namespace std;
class array
{

public:
	void print();
	
};
class arraytest 
{
	int main();
};

#endif 

I've removed all unecesary methods as they work. Please help me sort this problem out. Thank for your time in advance.

[cire]

You haven't defined the print member of array. What you have defined is a free function print which is not related to the class array.

array.cpp:

#include "array.h"

void array::print()
{
    std::cout << "something" ;
}

Likewise with arraytest::main, although I don't see any reason for that class to exist at all. You should also probably avoid naming classes names which conflict with types in the std namespace (such as std::array) especially if you're going to put using namespace std; in header files. It would also be advisable not to put using directives such as that in header files.

[marijus5012]

Thank you cire, I'll have that in mind. Appreciate your help and patient with such a messy code ha ha