linux-kernel - [PATCH 1/2] include/linux: Defining bool, false and true

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Date:	Sat, 29 Jul 2006 14:32:11 +0200
From:	ricknu-0@...dent.ltu.se
To:	linux-kernel@...r.kernel.org
Cc:	Andrew Morton <akpm@...l.org>, Jeff Garzik <jeff@...zik.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Vadim Lobanov <vlobanov@...akeasy.net>,
	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Shorty Porty <getshorty_@...mail.com>,
	Peter Williams <pwil3058@...pond.net.au>,
	Michael Buesch <mb@...sch.de>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Stefan Richter <stefanr@...6.in-berlin.de>, larsbj@...lik.net,
	Paul Jackson <pj@....com>,
	Josef Sipek <jsipek@....cs.sunysb.edu>,
	Arnd Bergmann <arnd.bergmann@...ibm.com>,
	Nicholas Miell <nmiell@...cast.net>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Lars Noschinski <cebewee@....de>
Subject: [PATCH 1/2] include/linux: Defining bool, false and true

This patch defines:
* a generic boolean-type, named "bool"
* aliases to 0 and 1, named "false" and "true"

Signed-off-by: Richard Knutsson <ricknu-0@...dent.ltu.se>

---

 stddef.h |    5 +++++
 types.h  |    2 ++
 2 files changed, 7 insertions(+)


diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index b3a2cad..0382065 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -10,6 +10,11 @@ #else
 #define NULL ((void *)0)
 #endif
 
+enum {
+	false	= 0,
+	true	= 1
+};
+
 #undef offsetof
 #ifdef __compiler_offsetof
 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
diff --git a/include/linux/types.h b/include/linux/types.h
index 3f23566..406d4ae 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -33,6 +33,8 @@ typedef __kernel_clockid_t	clockid_t;
 typedef __kernel_mqd_t		mqd_t;
 
 #ifdef __KERNEL__
+typedef _Bool			bool;
+
 typedef __kernel_uid32_t	uid_t;
 typedef __kernel_gid32_t	gid_t;
 typedef __kernel_uid16_t        uid16_t;

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