Newsgroups: comp.lang.c++
Path: utzoo!utgpu!cunews!bnrgate!scrumpy!smithwicks!stu4
From:  bnrmtl!stu4@larry.mcrcim.mcgill.edu (Craig Jones)
Subject: Pointers to member functions
Message-ID: <1991Jan18.222713.26249@scrumpy@.bnr.ca>
Keywords: pointer, function, member, class
Sender: news@scrumpy@.bnr.ca (USENET (Sandy Young))
Reply-To: bnrmtl!stu4@larry.mcrcim.mcgill.edu 
Organization: Bell Northern Research Montreal, Canada.
Distribution: na
Date: Fri, 18 Jan 91 22:27:13 GMT

Let me say at the outset, I am new to C++ (but loving it) so please
be patient with me if this is a simple question...

I am trying to pass a pointer of a function (that is a member of a 
class) to the ftw() function (taken from <ftw.h>).

My class is defined as follows:

class fileclass
{
//  some variables here 

        int show_file (char*, struct stat*, int);
// the above must be defined like this because of 
// restrictions in ftw().

  public:
	fileclass ();
        void show ();
        ~fileclass ();
};

And the functions as:

void fileclass::show()
{
	ftw(path, &show_file, 100);
}                 ^^^^^^^^^^^ Not sure what to put here.
                  
int fileclass::show_file(char* path, struct stat* status, int depth)
{
	printf("%s\n", path);
	return 0;
}

The question is: How do I write the second parameter to
                 the ftw function?

Thanks for any time and help....

Craig
bnrmtl!stu4@larry.mcrcim.mcgill.edu