C ++ Program

// Borland C++ - (C) Copyright 1991 by Borland International
//XSTRING.CPP--Example from Getting Started */// version of STRING.CPP with overloaded operator +
#include #include
class String { char *char_ptr; // pointer to string contents int length; // length of string in characterspublic: // three different constructors String(char *text); // constructor using existing string String(int size = 80); // creates default empty string String(String& Other_String); // for assignment from another // object of this class ~String() {delete char_ptr;}; // inline destructor int Get_len (void); String operator+ (String& Arg); void Show (void);};
String::String (char *text){ length = strlen(text); // get length of text char_ptr = new char[length + 1]; strcpy(char_ptr, text);};
String::String (int size){ length = size; char_ptr = new char[length+1]; *char_ptr = '\0';};
String::String (String& Other_String){ length = Other_String.length; // length of other string char_ptr = new char [length + 1]; // allocate the memory strcpy (char_ptr, Other_String.char_ptr); // copy the text};
String String::operator+ (String& Arg){ String Temp( length + Arg.length ); strcpy(Temp.char_ptr, char_ptr); strcat(Temp.char_ptr, Arg.char_ptr); return Temp;}
int String::Get_len(void){ return (length);};
void String::Show(void){ cout << char_ptr << "\n";};
main () // test the functions{ String AString ("The Quick Brown fox"); AString.Show();
String BString(" jumps over Bill"); String CString; CString = AString + BString; CString.Show();}