Does the last element in a loop deserve a separate treatment?

Question

When reviewing, I sometimes encounter this kind of loop:

i = begin
while ( i != end ) {    
   // ... do stuff
   if ( i == end-1 (the one-but-last element)          


        

Answer 1

Another thing I hate to see is the for-case pattern:

for (i=0; i<5; i++)
{
  switch(i)
  {
    case 0:
      // something
      break;
    case 1:
      // something else
      break;
    // etc...
  }
}

I've seen this in real code.