Dereferencing a NULL value

[CubDriver]

Hi, What is the effect of dereferencing a pointer variable which has the value NULL?

Charlie

[rachelle]

First before answering to your question I will explain what is deferencing a pointer variable and this would clearly answer your question. Dereferencing a pointer variable reflects that the pointer is made to refer to some other location in memory. So as you have asked if you dereferencing a pointer variable which has the value NULL it would result in memory fragmentation/segmentation program.

[CubDriver]

Hi Rachelle,

First of all, thanks for responding tot he question. I am very new at this and have read your response several times. I feel like the caveman in the GEICO commercial where the specialist they ask the caveman for his response to a womans comments He said ......Huh?!

I think I get what youu are saying, but want to understand. Are you saying that the compiler will detect the error and issue an error message/ or will this make it through the compiler and you get a runtime error?

Charlie