1.\" $NetBSD: valloc.3,v 1.12 2003/08/07 16:42:59 agc Exp $ 2.\" 3.\" Copyright (c) 1980, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)valloc.3 8.1 (Berkeley) 6/4/93 31.\" 32.Dd June 4, 1993 33.Dt VALLOC 3 34.Os 35.Sh NAME 36.Nm valloc 37.Nd aligned memory allocation function 38.Sh LIBRARY 39.Lb libc 40.Sh SYNOPSIS 41.In stdlib.h 42.Ft void * 43.Fn valloc "size_t size" 44.Sh DESCRIPTION 45.Bf -symbolic 46Valloc is obsoleted by the current version of 47.Xr malloc 3 , 48which aligns page-sized and larger allocations. 49.Ef 50.Pp 51The 52.Fn valloc 53function 54allocates 55.Fa size 56bytes aligned on a page boundary. 57It is implemented by calling 58.Xr malloc 3 59with a slightly larger request, saving the true beginning of the block 60allocated, and returning a properly aligned pointer. 61.Sh RETURN VALUES 62The 63.Fn valloc 64function returns 65a pointer to the allocated space if successful; otherwise 66a null pointer is returned 67.Sh HISTORY 68The 69.Fn valloc 70function appeared in 71.Bx 3.0 . 72.Sh BUGS 73A 74.Em vfree 75function has not been implemented. 76