Safe Programming

Sat Nov 29, 2008 12:58 am

One of code steps you do in your C coding with pointers , is to to check on the pointer before you use it ( just to be in safe )

for example :

Code:: MyClass *mypointer=new MyClass(param1,param2...) ; *mypointer->function();

what will happen if the "mypointer" not allocated ,null pointer error .to avoid this .

Code:: MyClass *mypointer=new MyClass(param1,param2...) ; if(mypointer !=NULL ) *mypointer->function();

You will avoid these errors , just by this small check , higher level like Java contain no pointers .In fact this is one of power stands in Java .So you don't need to take care about this there . It can be caught easy as exception.