Initial commit

c++/Others/Additional meanings for the + and = operations.cpp

@@ -0,0 +1,69 @@
+Additional meanings for the + and = operations
+#include <iostream>  
+#include <string.h>  
+using namespace std;
+class str_type {  
+  char string[80];  
+public:  
+  str_type(char *str = "\0") { strcpy(string, str); }  
+     
+  str_type operator+(str_type str);  
+  str_type operator+(char *str);  
+     
+  str_type operator=(str_type str);  
+  str_type operator=(char *str);  
+     
+  void show_str(void) { cout << string; }  
+} ;  
+     
+str_type str_type::operator+(str_type str) {  
+  str_type temp;  
+     
+  strcpy(temp.string, string);  
+  strcat(temp.string, str.string);  
+  return temp;  
+}  
+     
+str_type str_type::operator=(str_type str) {  
+  strcpy(string, str.string);  
+  return *this;  
+}  
+     
+str_type str_type::operator=(char *str)  
+{  
+  str_type temp;  
+     
+  strcpy(string, str);  
+  strcpy(temp.string, string);  
+  return temp;  
+}  
+     
+str_type str_type::operator+(char *str)  
+{  
+  str_type temp;  
+     
+  strcpy(temp.string, string);  
+  strcat(temp.string, str);  
+  return temp;  
+}  
+     
+main(void)  
+{  
+  str_type a("Hello "), b("There"), c;  
+     
+  c = a + b;  
+     
+  c.show_str();  
+  cout << "\n";  
+     
+  a = "to program in because";  
+  a.show_str();  
+  cout << "\n";  
+     
+  b = c = "C++ is fun";  
+     
+  c = c+" "+a+" "+b;  
+  c.show_str();  
+     
+  return 0;  
+}