Date: Sat, 18 Nov 2000 03:50:24 -0500 (EST) From: Donald.J.Maddox@cae88-102-101.sc.rr.com To: FreeBSD-gnats-submit@freebsd.org Subject: misc/22936: <stdbool.h> broken, needs repair Message-ID: <200011180850.eAI8oOt50089@cae88-102-101.sc.rr.com>
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>Number: 22936
>Category: misc
>Synopsis: /usr/include/stdbool.h defines _bool twice when included by gcc.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sat Nov 18 01:00:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Donald J. Maddox
>Release: FreeBSD 5.0-CURRENT i386
>Organization:
>Environment:
System: FreeBSD cae88-102-101.sc.rr.com 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Wed Nov 15 00:22:26 EST 2000 root@cae88-102-101.sc.rr.com:/usr/src/sys/compile/RHIANNON i386
>Description:
The header file <stdbool.h> contains a defective
conditional that breaks several ports. Any code that includes
<stdbool.h> will break if compiled by gcc... Example:
#include <stdbool.h>
int main()
{
return(0);
}
$ cc test.c
In file included from test.c:1:
/usr/include/stdbool.h:51: conflicting types for `_Bool'
/usr/include/stdbool.h:38: previous declaration of `_Bool'
>How-To-Repeat:
See above :)
>Fix:
--- /usr/src/include/stdbool.h Sat Sep 16 03:28:44 2000
+++ stdbool.h.new Sat Nov 18 03:23:55 2000
@@ -31,11 +31,15 @@
#ifndef _STDBOOL_H_
#define _STDBOOL_H_
+#if __STDC_VERSION__ < 199901L
+typedef int _Bool; /* not built into pre-C99 compilers */
+#else
/* `_Bool' type must promote to `int' or `unsigned int' */
typedef enum {
false = 0,
true = 1
} _Bool;
+#endif
/* And those constants must also be available as macros */
#define false false
@@ -46,9 +50,5 @@
/* Inform that everything is fine */
#define __bool_true_false_are_defined 1
-
-#if __STDC_VERSION__ < 199901L
-typedef int _Bool; /* not built into pre-C99 compilers */
-#endif
#endif /* _STDBOOL_H_ */
>Release-Note:
>Audit-Trail:
>Unformatted:
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