Re: undefined reference(compile error), plz help

On Jun 9, 12:44 am, Paavo Helde<myfirstn...@osa.pri.ee> wrote:


/
***********************************************************************************************/

Thanks Paavo and Brian your reply on this undefined reference

now I delete more variables, functions in my IntArray.h and add
IntArrayRC.cpp(and IntArray.cpp)
/
***********************************************************************************************/
#ifndef IntArray_H
#define IntArray_H

class IntArray {
public:
     // equality and inequality operations: #2b
     explicit IntArray( int size = DefaultArraySize );
     IntArray( int *array, int array_size );
     IntArray( const IntArray&rhs );

     // virtual destructor!
     // virtual ~IntArray() { delete [] ia; }

     // equality and inequality operations:
     bool operator==( const IntArray& ) const;
     bool operator!=( const IntArray& ) const;

     // assignment operator: #2a
     IntArray& operator=( const IntArray& );
     int size() const { return _size; }

// we've removed the check on the index...
     /* virtual */ int& operator[](int index) { return ia[index]; }
     // int size() const; // #1
   // virtual void sort(); // #4

     //virtual int min() const; // #3a
     //virtual int max() const; // #3b

     // if the value is found within the aray,
     // return the index of its first occurrence
     // otherwise, return -1

     /*virtual*/ int find ( int value ) const; // #3c

    protected:
      // the private implementation
      static const int DefaultArraySize = 12;
      void init( int sz, int *array );

      int _size;
      int *ia;
};

#endif
/*--------------------*/
#ifndef IntArrayRC_H
#define IntArrayRC_H

#include "IntArray.h"

class IntArrayRC : public IntArray {
public:
    IntArrayRC( int _size = DefaultArraySize );
    IntArrayRC( int *array, int array_size );
    IntArrayRC( const IntArrayRC&rhs );
   /* virtual*/ int& operator[]( int );

private:
    void check_range( int );
};

#endif
/*----------------------------*/
// IntArrayRC.cpp

#include "IntArrayRC.h"

IntArrayRC::IntArrayRC(int *iarray, int iarray_size)
{
    ia = iarray;
    _size = iarray_size;
}
/*-------------------------------------------------------*/
// IntArray.cpp

#include "IntArray.h"

IntArray::IntArray(int *iarray, int iarray_size)
{
    ia = iarray;
    _size = iarray_size;
}

/*-------------------------------------------------------*/
/* my pg49.cpp and IntArray.cpp didn't change */
/*--------- ----------*/
/* I tried to make everything simple, just hope to make it run, but
it still not work, and I don't see my IntArrayRC.cpp or pg49.cpp
reference
   * IntArray::IntArray(int)' at all. how come compiler complain
that?
   */
eric@eric-laptop:~/CppPrimer3$ g++ IntArray.cpp IntArrayRC.cpp
pg49.cpp
/tmp/ccFlMagZ.o: In function `IntArrayRC::IntArrayRC(int*, int)':
IntArrayRC.cpp:(.text+0x15): undefined reference to
`IntArray::IntArray(int)'
collect2: ld returned 1 exit status
eric@eric-laptop:~/CppPrimer3$

looking to see any advancer's help again, and
Thanks a lot in advance,