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#include <iostream>
#include <iomanip>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <new>
using namespace std;
class Charstr {
protected:
char _objname [32];
char *_str;
public:
Charstr();
Charstr(char *inname, char *instr);
Charstr(char *inname){
cout << "One-Arg Charstr Constructor for " << inname << endl;
assert(strlen(inname) < 32);
strcpy(_objname, inname);
_str = 0;}
/*Charstr& operator=(Charstr& inobj){
delete _str;
_str=new char[strlen(inobj._str)+1];
strcpy(_str,inobj._str);
return *this;
}*/
~Charstr();
Charstr(Charstr& obj){
cout<<"calling copy constructor for "<<obj._objname<<endl;
_str= new char[strlen(obj._str)+1];
strcpy(_str,obj._str);
strcpy(_objname,obj._objname);
}
Charstr reverse();
friend ostream &operator << (ostream &stream, Charstr &inobj);
};
void exhausted()
{
cout << "Free store is exhausted!" << endl;
exit(0);}
Charstr::Charstr(){_str = 0;}
Charstr::Charstr(char *inname, char *instr){
cout << "Two-Arg Charstr Constructor for " << inname << endl;
assert(instr);
_str=new char[strlen(instr) + 1];
strcpy(_str, instr);
assert(strlen(inname) < 32);
strcpy(_objname, inname);}
Charstr::~Charstr()
{cout << "Charstr destructor for " << _objname << endl;
cout << "Freeing pointer " << (void *)_str << endl;
delete _str;
}
ostream &operator << (ostream &stream, Charstr &inobj)
{
stream << "obj:" << inobj._objname << endl; stream << "str: " << inobj._str << endl;
return stream;
}
Charstr Charstr::reverse()
{
Charstr temp;
int len=0,i=0,j=0;
cout << "reversing object"<<_objname << endl;
strcpy(temp._objname, "temp");
len = strlen(_str);
temp._str = new char[len + 1];
for (i=(len-1),j=0; j<len; i--, j++)
temp._str[j] = _str[i];
temp._str[len] = '\0';
cout << "returning temp." << endl;
return temp;
}
void func1(Charstr inobj)
{
cout << inobj;
}
int main()
{
Charstr c1("c1","Mike"), c2("c2","Jack");
set_new_handler(exhausted);
func1(c1);
func1(c2);
func1(c1);
Charstr c3("c3");
c3 = c2.reverse();
cout << "After reverse, printing c3" << endl;
cout<<c3;}
