From: Rich Felker <dalias@libc.org>
To: Jens Gustedt <Jens.Gustedt@inria.fr>
Cc: musl@lists.openwall.com
Subject: Re: [musl] [C23 divers headers 15/17] C23: add the unreachable macro
Date: Wed, 24 May 2023 10:21:05 -0400 [thread overview]
Message-ID: <20230524142103.GV4163@brightrain.aerifal.cx> (raw)
In-Reply-To: <bda8a83087029489682ca1d04a6a0f518906e258.1684932861.git.Jens.Gustedt@inria.fr>
On Wed, Apr 19, 2023 at 08:38:04AM +0200, Jens Gustedt wrote:
> ---
> include/stddef.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/stddef.h b/include/stddef.h
> index f25b8639..09be5fb6 100644
> --- a/include/stddef.h
> +++ b/include/stddef.h
> @@ -24,4 +24,6 @@
> #define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
> #endif
>
> +#define unreachable() __builtin_unreachable()
> +
> #endif
> --
> 2.34.1
This is a namespace violation unless protected by a C version check.
Rich
next prev parent reply other threads:[~2023-05-24 14:21 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-24 12:54 [musl] [C23 divers headers 00/17] boring header update Jens Gustedt
2023-04-15 13:21 ` [musl] [C23 divers headers 02/17] C23: Add the *_WIDTH macros to stdint.h Jens Gustedt
2023-04-17 9:09 ` [musl] [C23 divers headers 03/17] C23: add call_once to stdlib.h Jens Gustedt
2023-05-24 14:23 ` Rich Felker
2023-04-17 19:52 ` [musl] [C23 divers headers 04/17] C23: add timegm, gmtime_r and localtime_r to time.h in C23 mode Jens Gustedt
2023-04-19 6:38 ` [musl] [C23 divers headers 15/17] C23: add the unreachable macro Jens Gustedt
2023-05-24 14:21 ` Rich Felker [this message]
2023-05-24 14:26 ` Jₑₙₛ Gustedt
2023-05-24 14:30 ` Rich Felker
2023-04-19 6:42 ` [musl] [C23 divers headers 16/17] C23: add the nullptr_t type Jens Gustedt
2023-05-24 14:22 ` Rich Felker
2023-05-24 14:29 ` Jₑₙₛ Gustedt
2023-05-24 14:34 ` Rich Felker
2023-05-24 14:42 ` Jₑₙₛ Gustedt
2023-05-24 14:49 ` Rich Felker
2023-05-24 15:24 ` Jₑₙₛ Gustedt
2023-04-19 6:46 ` [musl] [C23 divers headers 17/17] C23: add the __STDC_VERSION_STDDEF_H__ macro Jens Gustedt
2023-04-19 8:16 ` [musl] [C23 divers headers 09/17] C23: update stdbool.h Jens Gustedt
2023-04-19 11:48 ` [musl] [C23 divers headers 10/17] C23: remove the contents of stdalign.h Jens Gustedt
2023-05-24 14:25 ` Rich Felker
2023-04-19 11:59 ` [musl] [C23 divers headers 11/17] C23: remove the static_assert macro Jens Gustedt
2023-04-19 12:17 ` [musl] [C23 divers headers 12/17] C23: change the assert macro to ... arguments Jens Gustedt
2023-04-19 12:48 ` [musl] [C23 divers headers 13/17] C23: add the __STDC_VERSION_ASSERT_H__ macro Jens Gustedt
2023-04-19 13:02 ` [musl] [C23 divers headers 06/17] C23: adapt setjmp.h Jens Gustedt
2023-04-19 13:11 ` [musl] [C23 divers headers 07/17] C23: change the noreturn functions in stdlib.h Jens Gustedt
2023-04-19 13:17 ` [musl] [C23 divers headers 08/17] C23: change the noreturn function in threads.h Jens Gustedt
2023-04-19 13:56 ` [musl] [C23 divers headers 14/17] C23: allow va_start to receive only one argument Jens Gustedt
2023-04-21 11:33 ` [musl] [C23 divers headers 01/17] C23: add the WIDTH macros for the standard integer types Jens Gustedt
2023-04-22 20:06 ` [musl] [C23 divers headers 05/17] C23: memccpy, strdup and strndup are now standard C Jens Gustedt
2023-05-31 9:22 [musl] [C23 divers headers 00/17] Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 15/17] C23: add the unreachable macro Jens Gustedt
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