gistfile1.cpp

#include <iostream.h>
#include <string.h>

class string
{
private:
	int size;
	char *ptr;

 	string() : size(0), ptr(new char[1]) { ptr[0] = 0; }

	string(const string &s) : size(s.size)
	{
		ptr = new char[size + 1];
		strcpy(ptr, s.ptr);
	}

	~string()
	{
		delete [] ptr;
	}

	friend ostream &operator <<(ostream &, const string &);
	string &operator=(const char *);
};

ostream &operator<<(ostream &stream, const string &s)
{
	return(stream << s.ptr);
}

string &string::operator=(const char *chrs)
{
	if (this != &chrs)
	{
		delete [] ptr;
	 	size = strlen(chrs);
		ptr = new char[size + 1];
		strcpy(ptr, chrs);
	}
	return(*this);
}

int main()
{
	string str;

	str = "Hello, world.";
	cout << str << endl;

	return(0);
}