Checking for null before pointer usage

Question

Most people use pointers like this...

if ( p != NULL ) {
  DoWhateverWithP();
}

However, if the pointer is null for whatever reason, the functi

Answer 1

I think I've seen more of. This way you don't proceed if you know it's going to blow up anyway.

if (NULL == p)
{
  goto FunctionExit; // or some other common label to exit the function.
}