Thread: true/false

Originally Posted by DaveH

Thats what I thought, but wasn't sure. So i would be -1 and it would try to access the array. That would be attempting array access with an out of bounds index.

I wasn't aware that 0 - 1 + 1 equaled negative one. It's the new math!

Originally Posted by tabstop

I wasn't aware that 0 - 1 + 1 equaled negative one. It's the new math!

Okay, I see where I wasn't thinking correctly. i would be set to -1 inside the loop, but it would be incremented back to zero before the next loop iteration. But, this would become an infinite loop because : i=0, check arrary element at zero. That element is not valid. set i=-1. increment loop so i=0 again. repeat forever.

Originally Posted by DaveH

Okay, I see where I wasn't thinking correctly. i would be set to -1 inside the loop, but it would be incremented back to zero before the next loop iteration. But, this would become an infinite loop because : i=0, check arrary element at zero. That element is not valid. set i=-1. increment loop so i=0 again. repeat forever.

Except that the scanf was inside the loop, so we could get a new (hopefully valid) number.

Originally Posted by tabstop

Except that the scanf was inside the loop, so we could get a new (hopefully valid) number.

You are right. Ignore me.