saving octet-stream png file

[Random832]

On Sat, Aug 20, 2016, at 03:50, Marko Rauhamaa wrote:
> 2'scomplement arithmetics is quite often taken advantage of in C
> programming. Unfortunately, with the castration of signed integers with
> the most recent C standards, 2's-complement has been dangerously broken.

No part of any version of the C standard has ever allowed signed integer
overflow to work as defined behavior the way a generation of programmers
assumed it did. What changed was advances in compiler optimization
technology, not a standards change.