Date: Tue, 5 Jun 2012 19:59:09 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r236633 - stable/7/sys/sys Message-ID: <201206051959.q55Jx9wZ040780@svn.freebsd.org>
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Author: marius Date: Tue Jun 5 19:59:09 2012 New Revision: 236633 URL: http://svn.freebsd.org/changeset/base/236633 Log: MFC: r236486 Add nitems(), a macro for determining the number of elements in a statically-allocated array. Obtained from: OpenBSD (in principle) Modified: stable/7/sys/sys/param.h Directory Properties: stable/7/sys/ (props changed) stable/7/sys/cddl/contrib/opensolaris/ (props changed) stable/7/sys/contrib/dev/acpica/ (props changed) stable/7/sys/contrib/pf/ (props changed) Modified: stable/7/sys/sys/param.h ============================================================================== --- stable/7/sys/sys/param.h Tue Jun 5 19:59:02 2012 (r236632) +++ stable/7/sys/sys/param.h Tue Jun 5 19:59:09 2012 (r236633) @@ -249,6 +249,7 @@ #ifndef howmany #define howmany(x, y) (((x)+((y)-1))/(y)) #endif +#define nitems(x) (sizeof((x)) / sizeof((x)[0])) #define rounddown(x, y) (((x)/(y))*(y)) #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) /* to any y */ #define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */
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