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Is class is occupying any Memory??

P: 1
I want to know is class is occupying any Memory??

suppose if i declare 10 different classes and don't create any instance of that classes, is that classes occupying any Memory??

class var
int a;
int b;
float c;
float d;

is the memory is allocated for this class???

Aug 14 '07 #1
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Expert Mod 5K+
P: 9,197
No. Memory is not allocated when you declare a class. The class serves as information for the compiler os that when you create an object the compiler knows how big to make it. Then when you call methods on the object, the compiler can check to see of the methods are actualy part of the class. Only when you define an object is memory allocated:
Expand|Select|Wrap|Line Numbers
  1. //class declaration - no memory allocated
  2. class var
  3. {
  4. int a;
  5. int b;
  6. float c;
  7. float d;
  8. };
  10. int main()
  11. {
  12.     var obj;          //object defined. Memory is allocated.
  13. }
Aug 14 '07 #2

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