Bitte um Hilfe:error LNK2019: unresolved external symbol(c++ probleme)

[herrgeothe]

i have designed the following base class IntArray and derived class IntArrayRC;

-------------------------------------------------------------
class IntArray definition and its implementation
-------------------------------------------------------------

class IntArray{

public:

IntArray( int *myarray, int array_size );
int size() const { return _size; }

protected:
int _size;
int *ia;

};

--------------------------------------------------------------

#include "IntArray.h"
#include <iostream>
extern "C"
{
#include <cassert>
}
using namespace std;
IntArray::IntArray(int *myarray, int array_size)
{
//set data members.
_size = array_size;
ia = new int [ _size ];

//copy data members.
for( int ix = 0; ix < _size; ++ix )
ia[ ix ] = myarray[ ix ];
}
-----------------------------------------------------------------------------
class IntArrayRC definition and implementation
------------------------------------------------------------------------------
#include "IntArray.h"

class IntArrayRC: public IntArray {

public:

IntArrayRC( int *iar, int sz );

private:
void check_range( int );

};
------------------------------------------------------------------------------
#include "IntArrayRC.h"
#include "IntArray.h"
using namespace std;

extern "C"
{
#include <cassert>
}

~IntArrayRC::IntArrayRC( const int *iar, int sz )
: IntArray( iar, sz ) {}~

------------------------------------------------------------------------------
main.cpp
-----------------------------------------------------------------------------

#include "IntArray.h"
#include "IntArrayRC.h"
#include "IntArray.cpp"
#include <iostream>
extern "C"
{
#include <cassert>
}
using namespace std;

extern void swap( IntArray &, int, int );

int main(void)
{
int ar[ 4 ] = { 0, 110, 2, 3333 };

IntArray ia1( ar, 4 );
IntArrayRC ia2( ar, 4 );

system("PAUSE");
return EXIT_SUCCESS;
}

running:

Compiling...
main.cpp
Generating Code...
Skipping... (no relevant changes detected)
IntArray.h
Linking...
LINK : C:\Users\fengyahui\Documents\Visual Studio 2008\Projects\C_plus_plus_primer_study\Debug\C_plus_plus_primer_study.exe not found or not built by the last incremental link; performing full link
main.obj : error LNK2019: unresolved external symbol "public: __thiscall IntArrayRC::IntArrayRC(int *,int)" (??0IntArrayRC@@QAE@PAHH@Z) referenced in function _main
C:\Users\alex\Documents\Visual Studio 2008\Projects\C_plus_plus_primer_study\Debug\C_plus_plus_primer_study.exe : fatal error LNK1120: 1 unresolved externals

[Martin Richter]

Ich vsetehe nicht was zu welcher Datei gehört in Deinem Posting.

Auffällig:
1. Du machst einen #include der IntArray.cpp. Die gehört einfach in das Projekt eingefügt
2. Gleiches gilt vermutlich für die IntArrayRC.cpp, die nicht zum Projekt gehört.

[Morle]

Der Konstruktor ist als

IntArrayRC( int *iar, int sz )

deklariert und die Implementierung als

IntArrayRC::IntArrayRC( const int *iar, int sz )

Da ist nen const zuviel/zuwenig