MCU Null pointer

Null pointer points to zero address, also in MCU zero address is special fuction register normally.. Don't they conflict with each other. If I define malloc function & MCU won't be able to allocate memory then malloc return null address,
then what could be the problem.

 

help abt dis..........

 

That is why you allways should check if ptr!=null after allocation. If you don´t do that you´re asking for trouble regardless of MCU or CPU you´re using.