string type constructor

  

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

class StringClass {
  char *p;
  int len;
public:
  StringClass(char *ptr);
  ~StringClass();
  void show();
};

StringClass::StringClass(char *ptr)
{
  len = strlen(ptr);
  p = new char [len+1];
  if(!p) {
    cout << "Allocation error\n";
    exit(1);
  }
  strcpy(p, ptr);
}

StringClass::~StringClass()
{
  cout << "Freeing p\n";
  delete [] p;
}

void StringClass::show()
{
  cout << p << " - length: " << len;
  cout << endl;
}

int main()
{
  StringClass stringObject1("www.java2s.com"), stringObject2("www.java2s.com");

  stringObject1.show();
  stringObject2.show();

  return 0;
}

Related examples in the same category

1.	Constructing and Destructing sequence for three level inheritance
2.	Parameterized Constructors
3.	Use constructor to init member variables
4.	Use Double value as the constructor parameter
5.	Constructor: different parameter type
6.	Use automatic conversions to assign new values
7.	Call constructor from base class
8.	Constructor with 2 parameters
9.	Define constructor outside a class definition
10.	overloading class constructors
11.	Constructor with parameter value checking

string type constructor : Constructor « Class « C++

Related examples in the same category