1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)valloc.3 8.1 (Berkeley) 6/4/93 33.\" $FreeBSD: src/lib/libc/gen/valloc.3,v 1.4.2.4 2001/12/14 18:33:51 ru Exp $ 34.\" 35.Dd June 4, 1993 36.Dt VALLOC 3 37.Os 38.Sh NAME 39.Nm valloc 40.Nd aligned memory allocation function 41.Sh LIBRARY 42.Lb libc 43.Sh SYNOPSIS 44.In unistd.h 45.Ft void * 46.Fn valloc "size_t size" 47.Sh DESCRIPTION 48.Bf -symbolic 49The 50.Fn valloc 51function is obsoleted by the current version of 52.Xr malloc 3 , 53which aligns page-sized and larger allocations. 54.Ef 55.Pp 56The 57.Fn valloc 58function 59allocates 60.Fa size 61bytes aligned on a page boundary. 62It is implemented by calling 63.Xr malloc 3 64with a slightly larger request, saving the true beginning of the block 65allocated, and returning a properly aligned pointer. 66.Sh RETURN VALUES 67The 68.Fn valloc 69function returns 70a pointer to the allocated space if successful; otherwise 71a null pointer is returned 72.Sh HISTORY 73The 74.Fn valloc 75function appeared in 76.Bx 3.0 . 77.Sh BUGS 78A 79.Em vfree 80function 81has not been implemented. 82