[Zlib-devel] zlib 1.2.6.1

[Jan Seiffert]

2012/2/14 Mark Adler <madler at madler.net>:
> All,
>
> A question of philosophy.  Currently Z_SOLO prevents the use of the special byte swap operations.  However for recent gcc's, the byte swap operation is built in, and does not need an include or a library.  So should Z_SOLO use the built-in?  Or not?
>

Good question.
You can hide the use of the builtin behind an ifdef __GNUC__, but more
and more compiler pretend to be an GCC, but then are not 100%
compatible.
At least for the GCC side of things i don't see it as that important,
because normally GCC detects the classic shift as a byteswap (as long
as it unsigned) and uses the right instruction, when some -Ox is
given.

I don't know how things are in MSVC land.

> Mark
>

Greetings
Jan