Thread: Trying to (Still) understand overflow

Hi,

I'm new to the forum. I came across these forums after a google search into C integer overflow. I found the following post;

how to handle integer overflow in C

Which is helping me understand overflow. To a point.

Thanks to Dave_Sinkula for the code examples

I've read that unsigned integer overflow is not UB. Does this mean that testing for overflow of unsigned integers is the same across all implementations?

The post that bought be to these forums deals with multiplication of integers.. Are the rules the same say if I was using the pow function with a and b?
eg:

Code:

pow(a,b)

I've also come across the following post which I'm trying to get my head around;
Definitive Guide To Integer Overflow.

Apologies if my questions are asinine or pedestrian. I am just learning C and this topic seems to confuse a lot of neophyte programmers like myself.

Thanks.

Hi John,

Thank you for the feedback.. I think it's clear that I do not grasp the topic. I'll go back over the forum posts. What I am stuck on.. I want to test for integer overflow before it happens... I know that after the fact is UB... I think I need to go over the original post that bought me here..