Stack that can handle both strings and floats in same class??

[hunternjb]

I am having a problem trying to come up with a way to build a stack that can handle both strings and floats in the same class. I am assuming a max of 5 elements in the stack to start with. I am also trying to avoid using malloc() and new when declaring the string, and using fixed arrays instead. Below is what I am pushing to the stack.

s.push( 1.0 );
s.push( 2 );
s.push( "three" );
s.push( 4 );
s.push( "FIVE" );
s.push( 6.6);

cout << s.pop() << endl;

I can't figure out a way to do this. Can someone please help me. Thanks.

 

[Nosferatu]

class S {
  enum sTypes {
    STRING,
    FLOAT,
    INT
};
  struct stack {
    int type;  // integer, float or string
    void* data;
};
  struct stack myStack[5];
  void push(const char* str);
  void push(int* nr);  // pass the pointer to the stack
  void push(double* nr);
...
  
};

S::push(const char*str)
{ myStack[index].type = STRING;
  myStack[index].data = (void *)str;
  index++;
}
S::push(double* nr)
{  myStack[index].type = FLOAT;
   myStack[index].data = (void*)nr;
  index++;
}

S::pop()
{  switch (myStack[index].type)
   { case STRING...do something...
    etc...
   }
}

The appropriate function is chosen at link time.
This might be a solution.
HTH
[red]Nosferatu[/red]
We are what we eat...
There's no such thing as free meal...
once stated: methane@personal.ro

 

[hunternjb]

Thanks I will try that.