Program illustrating Const Cast in C++

//The following Program illustrates the working of const_cast

#include <iostream>
using namespace std;

void print (char * str)
{
  cout<<"\nFrom Function print\n";
  cout << str;
}

int main () {
  const char * c = "Hello Friends";
  cout<<"\nFrom main Function\n";
  cout<<c;
  print ( const_cast<char *>(c) );
  return 0;
}

//The following given below is equivalent to the above Program

#include <iostream>
using namespace std;

void print (char * str)
{
  cout<<"\nFrom Function print\n";
  cout << str;
}

int main () {
  const char * c = "Hello Friends";
  cout<<"\nFrom main Function\n";
  cout<<c;
  print ( (char *)(c) );
  return 0;
}


// The Program given below will not work.

#include <iostream>
using namespace std;

void print (char * str)
{
  cout<<"\nFrom Function print\n";
  cout << str;
}

int main () {
  const char * c = "Hello Friends";
  cout<<"\nFrom main Function\n";
  cout<<c;
  print ( c );
  return 0;
}

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