Date: Fri, 28 Nov 2025 15:20:06 +0000 From: Robert Clausecker <fuz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: f0e541118c37 - main - uchar.h: add char8_t Message-ID: <6929bda6.2ee02.6bec62c6@gitrepo.freebsd.org>
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The branch main has been updated by fuz: URL: https://cgit.FreeBSD.org/src/commit/?id=f0e541118c374869a8226eaa1320bb6eda248a20 commit f0e541118c374869a8226eaa1320bb6eda248a20 Author: Robert Clausecker <fuz@FreeBSD.org> AuthorDate: 2025-11-27 17:57:02 +0000 Commit: Robert Clausecker <fuz@FreeBSD.org> CommitDate: 2025-11-28 15:19:53 +0000 uchar.h: add char8_t A type similar to char16 and char32_t, for compliance with C23. The related type atomic_char8_t is added to stdatomic.h. As char8_t is always unsigned char, I've skipped adding __char8_t. This can be added, too, if desired. Reviewed by: imp Approved by: markj (mentor) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D53952 --- include/uchar.h | 5 +++++ sys/sys/stdatomic.h | 6 ++++++ 2 files changed, 11 insertions(+) diff --git a/include/uchar.h b/include/uchar.h index 951c6339abec..ebb2c89776b8 100644 --- a/include/uchar.h +++ b/include/uchar.h @@ -32,6 +32,11 @@ #include <sys/cdefs.h> #include <sys/_types.h> +#if __ISO_C_VISIBLE >= 2023 && !defined(_CHAR8_T_DECLARED) +typedef unsigned char char8_t; +#define _CHAR8_T_DECLARED +#endif + #ifndef _CHAR16_T_DECLARED typedef __char16_t char16_t; #define _CHAR16_T_DECLARED diff --git a/sys/sys/stdatomic.h b/sys/sys/stdatomic.h index 099097ea84a4..67107f47e6b3 100644 --- a/sys/sys/stdatomic.h +++ b/sys/sys/stdatomic.h @@ -54,6 +54,9 @@ #ifdef __GCC_ATOMIC_CHAR_LOCK_FREE #define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE #endif +#if __ISO_C_VISIBLE >= 2023 && defined(__GCC_ATOMIC_CHAR8_T_LOCK_FREE) +#define ATOMIC_CHAR8_T_LOCK_FREE __GCC_ATOMIC_CHAR8_T_LOCK_FREE +#endif #ifdef __GCC_ATOMIC_CHAR16_T_LOCK_FREE #define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE #endif @@ -199,6 +202,9 @@ typedef _Atomic(long) atomic_long; typedef _Atomic(unsigned long) atomic_ulong; typedef _Atomic(long long) atomic_llong; typedef _Atomic(unsigned long long) atomic_ullong; +#if __ISO_C_VISIBLE >= 2023 +typedef _Atomic(unsigned char) atomic_char8_t; +#endif typedef _Atomic(__char16_t) atomic_char16_t; typedef _Atomic(__char32_t) atomic_char32_t; typedef _Atomic(___wchar_t) atomic_wchar_t;help
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