Using a structure to define a class.

 


#include <iostream>
#include <cstring>
using namespace std;

struct StringStructClass {
  void initString(char *s); // public
  void displayString();
private:                  // private
  char str[255];
} ;

void StringStructClass::initString(char *s)
{
  if(!*s) 
      *str = '\0'; // initialize string
  else 
      strcat(str, s);
}

void StringStructClass::displayString()
{
  cout << str << endl;
}

int main()
{
  StringStructClass stringObject;

  stringObject.initString("");          
  stringObject.initString("Hello ");
  stringObject.initString("there!");

  stringObject.displayString();

  return 0;
}

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Using a structure to define a class. : Struct Class « Class « C++

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