[glib: 2/2] Merge branch 'gatomic-exchange' into 'main'

[Philip Withnall <pwithnall src gnome org>]

commit d7c3b0fbf2889d4afd04477b3fd2b8d3e7e00378
Merge: a6f208af8e fa4e34667c
Author: Philip Withnall <philip tecnocode co uk>
Date:   Tue Jun 7 15:30:34 2022 +0000

    Merge branch 'gatomic-exchange' into 'main'
    
    gatomic: Add APIs to perform atomic int / pointer exchanges
    
    See merge request GNOME/glib!2726

 docs/reference/glib/glib-sections.txt |  2 +
 glib/gatomic.c                        | 94 +++++++++++++++++++++++++++++++++++
 glib/gatomic.h                        | 62 +++++++++++++++++++++++
 glib/tests/atomic.c                   | 30 +++++++++++
 glib/tests/cxx.cpp                    | 35 +++++++++++++
 meson.build                           | 12 +++++
 6 files changed, 235 insertions(+)
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