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| author | Jonathan Wakely <jwakely@redhat.com> | 2021-09-02 16:47:31 +0100 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2021-09-02 18:22:33 +0100 |
| commit | 89cf858571c58a58ca51dbbf3975582ebab41e2d (patch) | |
| tree | c44a628d4ce857d2c8e0fe9473f59852c85a9f91 /libgcc | |
| parent | 892400f1f21ccee98dddcd90677038ce266248c8 (diff) | |
| download | gcc-89cf858571c58a58ca51dbbf3975582ebab41e2d.zip gcc-89cf858571c58a58ca51dbbf3975582ebab41e2d.tar.gz gcc-89cf858571c58a58ca51dbbf3975582ebab41e2d.tar.bz2 | |
libstdc++: Implement std::atomic<T*>::compare_exchange_weak
For some reason r170217 didn't add compare_exchange_weak to the
__atomic_base<T*> partial specialization, and so weak compare exchange
operations on pointers use compare_exchange_strong instead.
This adds __atomic_base<T*>::compare_exchange_weak and then uses it in
std::atomic<T*>::compare_exchange_weak.
Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
libstdc++-v3/ChangeLog:
* include/bits/atomic_base.h (__atomic_base<P*>::compare_exchange_weak):
Add new functions.
* include/std/atomic (atomic<T*>::compare_exchange_weak): Use
it.
Diffstat (limited to 'libgcc')
0 files changed, 0 insertions, 0 deletions