From: Jens Gustedt <Jens.Gustedt@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] [C23 divers headers 03/17] C23: add call_once to stdlib.h
Date: Wed, 31 May 2023 11:22:50 +0200 [thread overview]
Message-ID: <65deacef8e879e0278ca6bcfd0d7c0a4fd7387a7.1685522953.git.Jens.Gustedt@inria.fr> (raw)
In-Reply-To: <cover.1685522953.git.Jens.Gustedt@inria.fr>
Since C23, call_once, once_flag and ONCE_FLAG_INIT are also accessible
even if the platform does not have the threads option. Add them to the
header.
The identifiers once_flag and ONCE_FLAG_INIT were not reserved in C17
if the header threads.h was not included, so we protect this with the
version macro.
---
include/stdlib.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/stdlib.h b/include/stdlib.h
index 475190bf..0e66f84a 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -172,6 +172,12 @@ long double strtold_l(const char *__restrict, char **__restrict, struct __locale
#endif
#endif
+#if __STDC_VERSION__ >= 202000L
+#define ONCE_FLAG_INIT 0
+typedef int once_flag;
+void call_once(once_flag *, void (*)(void));
+#endif
+
#ifdef __cplusplus
}
#endif
--
2.34.1
next prev parent reply other threads:[~2023-05-31 9:24 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-31 9:22 [musl] [C23 divers headers 00/17] Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 01/17] C23: add the WIDTH macros for the standard integer types Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 02/17] C23: Add the *_WIDTH macros to stdint.h Jens Gustedt
2023-05-31 9:22 ` Jens Gustedt [this message]
2023-05-31 9:22 ` [musl] [C23 divers headers 04/17] C23: add timegm, gmtime_r and localtime_r to time.h in C23 mode Jens Gustedt
2023-05-31 9:22 ` [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 06/17] C23: adapt setjmp.h Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 07/17] C23: change the noreturn functions in stdlib.h Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 08/17] C23: change the noreturn function in threads.h Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 09/17] C23: update stdbool.h Jens Gustedt
2023-05-31 12:58 ` Joakim Sindholt
2023-05-31 13:53 ` Jₑₙₛ Gustedt
2023-05-31 14:13 ` Joakim Sindholt
2023-05-31 14:18 ` Rich Felker
2023-05-31 14:19 ` Jₑₙₛ Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 10/17] C23: remove the contents of stdalign.h Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 11/17] C23: remove the static_assert macro Jens Gustedt
2023-05-31 9:22 ` [musl] [C23 divers headers 12/17] C23: change the assert macro to ... arguments Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 13/17] C23: add the __STDC_VERSION_ASSERT_H__ macro Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 14/17] C23: allow va_start to receive only one argument Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 15/17] C23: add the unreachable macro Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 16/17] C23: add the nullptr_t type Jens Gustedt
2023-05-31 9:23 ` [musl] [C23 divers headers 17/17] C23: add the __STDC_VERSION_STDDEF_H__ macro Jens Gustedt
-- strict thread matches above, loose matches on Subject: below --
2023-05-24 12:54 [musl] [C23 divers headers 00/17] boring header update 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
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