Gill,

you would want to declare a string object in main also

#include <iostream.h>
#include <string> // C++ standard string class


void GetInput(string &); // Function Prototype

int main()
{
// sting object definition, initialized with Peter
string word (Peter);

cout << "Original word:" << word << endl;
GetInput(&word);
cout << "Finally:" << word << endl;
return 0;
}