diff options
| author | Konstantin Belousov <kib@FreeBSD.org> | 2022-03-28 00:16:15 +0300 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2024-07-09 08:20:50 +0200 |
| commit | 9f86886873df95e05d9246256f6db9c62f8d8dae (patch) | |
| tree | 8fab5749f406ddad1ea17e8fab51a2be9f0c69b6 /newlib | |
| parent | 27ddfd9f8edb4a96fc456611da6a49a290282fb6 (diff) | |
| download | newlib-9f86886873df95e05d9246256f6db9c62f8d8dae.zip newlib-9f86886873df95e05d9246256f6db9c62f8d8dae.tar.gz newlib-9f86886873df95e05d9246256f6db9c62f8d8dae.tar.bz2 | |
sys/stdatomic.h: be nicer to c++
Use of stdatomic.h is undefined in C++, even the C++ 2020 standard does not
list stdatomic.h as a C library header supported by the language. More,
there are some subtle differences between the <atomic> C++ header, and
C11+ stdatomic.h provided features.
Nonetheless, it is a quality of the implementation aspect, so let mis-users
mis-use stdatomic.h as they want, by making a compat shim for _Bool.
PR: 262683
Reported by: yuri
Reviewed by: dim, emaste
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D34686
Diffstat (limited to 'newlib')
| -rw-r--r-- | newlib/libc/include/stdatomic.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/newlib/libc/include/stdatomic.h b/newlib/libc/include/stdatomic.h index f62ae7b..1acec53 100644 --- a/newlib/libc/include/stdatomic.h +++ b/newlib/libc/include/stdatomic.h @@ -163,6 +163,11 @@ atomic_signal_fence(memory_order __order __unused) #endif } +#if defined(__cplusplus) && !defined(_Bool) +#define _Bool bool +#define __bool_locally_defined +#endif + /* * 7.17.5 Lock-free property. */ @@ -408,4 +413,9 @@ atomic_flag_clear(volatile atomic_flag *__object) } #endif /* !_KERNEL */ +#ifdef __bool_locally_defined +#undef _Bool +#undef __bool_locally_defined +#endif + #endif /* !_STDATOMIC_H_ */ |