Date: Thu, 3 Sep 2009 14:10:06 GMT From: Kostik Belousov <kostikbel@gmail.com> To: freebsd-standards@FreeBSD.org Subject: Re: standards/138307: posix_memalign has incorrect behaviour if size == 0 Message-ID: <200909031410.n83EA64m020590@freefall.freebsd.org>
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The following reply was made to PR standards/138307; it has been noted by GNATS.
From: Kostik Belousov <kostikbel@gmail.com>
To: =?koi8-r?Q?Rafa=EBl_Carr=E9?= <rafael.carre@gmail.com>
Cc: bug-followup@freebsd.org
Subject: Re: standards/138307: posix_memalign has incorrect behaviour if size == 0
Date: Thu, 3 Sep 2009 16:44:38 +0300
The following patch should help.
diff --git a/lib/libc/stdlib/malloc.c b/lib/libc/stdlib/malloc.c
index 270d641..b56b003 100644
--- a/lib/libc/stdlib/malloc.c
+++ b/lib/libc/stdlib/malloc.c
@@ -5320,6 +5320,15 @@ posix_memalign(void **memptr, size_t alignment, size_t size)
goto RETURN;
}
+ if (size == 0) {
+ if (opt_sysv == false)
+ size = 1;
+ else {
+ result = NULL;
+ ret = 0;
+ goto RETURN;
+ }
+ }
result = ipalloc(alignment, size);
}
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