Ralf B. Lukner (lukner@che.utexas.edu) wrote:
: Problem:
: --------------------------
: #include <iostream.h>

: class Foo1      {
: public:
:         virtual int get()=0 const;        // compile error
: };

[rest snipped because it works when problem above is fixed]

Do it this way:

          virtual int get() const = 0;      // no compile error

--
/*----------------------------------------------------------------------*/
/* Bob Kline                                       Stream International */
/* bob_kline@stream.com               formerly Corporate Software, Inc. */
/* voice: (703) 522-0820 x-311                      fax: (703) 522-5407 */
/*----------------------------------------------------------------------*/

Problem:
--------------------------
#include <iostream.h>

class Foo1      {
public:
        virtual int get()=0 const;        // compile error
};

class Foo2:public Foo1  {
public:
        virtual int get() const {return i;};
private:
        static int i;
};

int Foo2::i=0;

main()  {

        Foo2 f;

        cout << f.get() << endl;

        return 0;
}

$ g++ foo.C
foo.C:5: parse error before `const'


Attempt to fool compiler:
--------------------------
$ diff foo.C foo_.C
5c5
<       virtual int get()=0 const;
---
>       virtual int get()=0;

$ g++ foo_.C
foo_.C: In function `int main()':
foo_.C:19: cannot declare variable `f' to be of type `Foo2'
foo_.C:19:   since the following virtual functions are abstract:
foo_.C:19:      int Foo1::get()

Darn!

Solution:
---------------------------
{Place here}

Please respond by e-mail (at least).
Thanks,
--Ralf

In article <lukner-3005951119540001@bingham.che.utexas.edu>,
lukner@che.utexas.edu says...
>
>Problem:
>--------------------------
>#include <iostream.h>
>
>class Foo1      {
>public:
>        virtual int get()=0 const;        // compile error
>};
--------------
Some very good books discuss syntax. Try:

        virtual int get() const = 0;

Mike.

In article <lukner-3005951119540001@bingham.che.utexas.edu>,
lukner@che.utexas.edu (Ralf B. Lukner) wrote:

> Problem:
>         virtual int get()=0 const;        // compile error
> Darn!
>
> Solution:
> ---------------------------
virtual int get() const =0;

Thanks to everyone who helped....
--Ralf