Trying to use a switch to choose which to declare

TheMiddleMan (2)
I'm not sure if this is possible, but what I am trying to do is use a switch to decide what type a variable should be (i have 3 classes to choose from)
it says its not being declared, so is that because the sections of a switch are like functions and everything declared inside goes away when that part does?
if so, is it possible to use pointers to choose?


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	switch( number ) {
		case 1:
			firstClass *variableName;
			variableName = new firstClass;
			break;
		case 2:
			secondClass *variableName;
			variableName = new secondClass;
			break;
		case 3:
			thirdClass *variableName;
			variableName = new thirdClass;
			break;
	}


thanks in advance
Last edited on
Zaita (2770)
Variables only exist in the scope that they are declared.
So after the break; variableName no longer exists.

You need to have a parent child relationship and declare through polymorphism.

e.g.
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parent *parentobj = 0;
switch(number) {
 case 1:
  parent = new child1();
  break;
 case2:
  parent = new child2();
  break;
}


Then using overloaded methods you can achieve the functionality you need.

TheMiddleMan (2)
hey thanks a lot, its working :D
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