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,