std.zlib odd behavior

[solidstate1991]

On Tuesday, 5 March 2019 at 02:19:26 UTC, Adam D. Ruppe wrote:
> I haven't found the bug in your code yet, but one thing I 
> suspect from my experience is you might be reusing a buffer. 
> std.zlib actually stores pointers internally across function 
> calls, so if you are trying to compress a stream, you are 
> liable to get corruption.
>
> (std.zlib is very bad code, frankly.)
>
> I don't know for sure though, my brain is in the compiler 
> tonight...

Thanks, it seems I'll have to write my own solution for this, and 
I really dislike the way streaming compression works in C. I've 
spotted some other bugs regarding my PNG implementation, but 
those were unrelated and didn't improve the compression issues.