From: Jens Gustedt <Jens.Gustedt@inria.fr>
To: musl@lists.openwall.com
Subject: [musl] [C23 divers headers 09/17] C23: update stdbool.h
Date: Wed, 19 Apr 2023 10:16:33 +0200 [thread overview]
Message-ID: <b0f8440792873e0066b2a94761caa335a8fbfe70.1684932861.git.Jens.Gustedt@inria.fr> (raw)
In-Reply-To: <cover.1684932861.git.Jens.Gustedt@inria.fr>
C23 has false, true and bool as keywords, so this file is basically
not needed for modern applications. It is only provided for backwards
compatibility. Implementations may also provide macros in addition to
the keywords, so we do that because some user code may rely on these.
---
include/stdbool.h | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/include/stdbool.h b/include/stdbool.h
index a9d7ab78..d9df7524 100644
--- a/include/stdbool.h
+++ b/include/stdbool.h
@@ -1,11 +1,17 @@
-#ifndef _STDBOOL_H
-#define _STDBOOL_H
+#ifndef __STDC_VERSION_STDBOOL_H__
+#define __STDC_VERSION_STDBOOL_H__ 202311L
#ifndef __cplusplus
+#if __STDC_VERSION__ >= 202311L
+#define true true
+#define false false
+#define bool bool
+#else
#define true 1
#define false 0
#define bool _Bool
+#endif
#endif
--
2.34.1
next prev parent reply other threads:[~2023-05-24 14:02 UTC|newest]
Thread overview: 35+ 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
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 ` Jens Gustedt [this message]
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 9:22 ` [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
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