freebsd-dev/lib/libc/gen/valloc.3

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.\" Copyright (c) 1980, 1991, 1993
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.\" @(#)valloc.3 8.1 (Berkeley) 6/4/93
1999-08-28 00:22:10 +00:00
.\" $FreeBSD$
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.\"
.Dd October 30, 2007
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.Dt VALLOC 3
.Os
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.Sh NAME
.Nm valloc
.Nd aligned memory allocation function
.Sh LIBRARY
.Lb libc
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.Sh SYNOPSIS
.In unistd.h
.Ft void *
.Fn valloc "size_t size"
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.Sh DESCRIPTION
The
.Fn valloc
function is obsoleted by
.Xr posix_memalign 3 ,
which can be used to request page-aligned allocations.
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.Pp
The
.Fn valloc
function
allocates
.Fa size
bytes aligned on a page boundary.
.Sh RETURN VALUES
The
.Fn valloc
function returns
a pointer to the allocated space if successful; otherwise
a null pointer is returned.
.Sh SEE ALSO
.Xr posix_memalign 3
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.Sh HISTORY
The
.Fn valloc
function appeared in
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.Bx 3.0 .
.Pp
The
.Fn valloc
function correctly allocated memory that could be deallocated via
.Fn free
starting in
.Fx 7.0 .