From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 26 May 2018 15:32:01 +0000 (+0100)
Subject: utils/bits.h: Add macros for swapping endianness in place.
X-Git-Tag: 2.3.0~4
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/commitdiff_plain/374bb459369d47f598d1b07f6237f24abd0d52c6?ds=inline;hp=374bb459369d47f598d1b07f6237f24abd0d52c6

utils/bits.h: Add macros for swapping endianness in place.

Many processors and compilers provide handy instructions for doing this,
and it's a handy primitive for loading and storing.

The HTOLw etc. macros turn out to be remarkably slippery to define.
It's unfortunately nonsensical to speak about an integer value having an
endianness.
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