over_inc.cpp

不错书对C++/C程序员很有用的大家不要错过.

// This file will not compile under TCLite because it does not support
// dual-overloaded increment operators

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

class String 
{
  public: 
    String String::operator++()
      { strcat(buffer, "X");
        return *this; };

    String String::operator++(int x)
      { strcat(buffer, "X");
        return *this; };

    String(char *string)
      { strcpy(buffer, string);
        length = strlen(buffer); }

    void show_string(void) { cout << buffer << endl; };
  private:
    char buffer[256];
    int length;
};


void main(void)
 {
   String title("Jamsa's C/C++ Programmer's Bible");

   title++;
   title.show_string();

   ++title;
   title.show_string();
 }