1.\" $NetBSD: __arraycount.3,v 1.6 2010/12/16 10:40:04 jruoho Exp $ 2.\" 3.\" Copyright (c) 2010 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Jukka Ruohonen. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd December 16, 2010 31.Dt __ARRAYCOUNT 3 32.Os 33.Sh NAME 34.Nm __arraycount 35.Nd macro for statically allocated arrays 36.Sh SYNOPSIS 37.In sys/cdefs.h 38.Ft size_t 39.Fn __arraycount x 40.Sh DESCRIPTION 41The 42.Fn __arraycount 43macro returns the number of elements in a statically allocated buffer. 44.Sh EXAMPLES 45The following example demonstrates a typical usage of 46.Fn __arraycount : 47.Bd -literal -offset indent 48uint8_t buf[BUFSIZE]; 49size_t i; 50 51\&... 52 53for (i = 0; i \*[Lt] __arraycount(buf); i++) 54 \&... 55.Ed 56.Sh SEE ALSO 57.Xr cdefs 3 58.Sh HISTORY 59The 60.Fn __arraycount 61macro first appeared in 62.Nx 4.0 . 63