Thread: Accessing private string

Hello,

I wan't to get a private string from class CWDirectory in member function set_path(const char* s) and put it in a member function set_path() in class Directory.

Code:

//cwdirectory.cpp
//class to output the path of the current working directory
#include <iostream>
#include <stdexcept>
#include "cwdirectory.h"
#include "unistd.h"

#define MAXPATHLEN 200

using namespace std;

CWDirectory::CWDirectory()
{
	char buf[MAXPATHLEN];
	if(getcwd(buf, MAXPATHLEN))
		set_path(buf);
	else
		throw domain_error("pathway not found");
}

string CWDirectory::set_path(const char* s)
{
	return path = s;
}

void CWDirectory::get_cwdir()
{
	cout << path << endl;
}

.............................................................

//directory.cpp
//class Directory to output the contents of the current
//working directory
#include <iostream>
#include <stdexcept>
#include "cwdirectory.h"
#include "directory.h"

Directory::Directory()
{
	set_path();
}

void Directory::set_path()//function not complete
{
	CWDirectory cwdir;
	cwdpath = cwdir.set_path(buf);//buf causes compiler error
	cout << cwdpath << endl;
}

Here is the error I am getting:

[hopchewer@hopchewer linux_com]$ make
g++ -O2 -Wall -Werror -ansi -c -o cwdirectory.o cwdirectory.cpp
g++ -O2 -Wall -Werror -ansi -c -o directory.o directory.cpp
directory.cpp: In member function ‘void Directory::set_path()’:
directory.cpp:17: error: ‘buf’ was not declared in this scope
make: *** [directory.o] Error 1

I am not sure how to get the path from class CWDirectory into class Directory to list the contents of the current working directory.