mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-23 03:06:48 +00:00
![Warner Losh](/assets/img/avatar_default.png)
Remove ancient SCCS tags from the tree, automated scripting, with two minor fixup to keep things compiling. All the common forms in the tree were removed with a perl script. Sponsored by: Netflix
80 lines
2.7 KiB
Groff
80 lines
2.7 KiB
Groff
.\" Copyright (c) 1980, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to Berkeley by
|
|
.\" the American National Standards Committee X3, on Information
|
|
.\" Processing Systems.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd January 31, 2010
|
|
.Dt MALLOC 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm reallocf
|
|
.Nd memory reallocation function
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In stdlib.h
|
|
.Ft void *
|
|
.Fn reallocf "void *ptr" "size_t size"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn reallocf
|
|
function is identical to the
|
|
.Fn realloc
|
|
function, except that it
|
|
will free the passed pointer when the requested memory cannot be allocated.
|
|
This is a
|
|
.Fx
|
|
specific API designed to ease the problems with traditional coding styles
|
|
for
|
|
.Fn realloc
|
|
causing memory leaks in libraries.
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn reallocf
|
|
function returns a pointer, possibly identical to
|
|
.Fa ptr ,
|
|
to the allocated memory
|
|
if successful; otherwise a
|
|
.Dv NULL
|
|
pointer is returned, and
|
|
.Va errno
|
|
is set to
|
|
.Er ENOMEM
|
|
if the error was the result of an allocation failure.
|
|
The
|
|
.Fn reallocf
|
|
function deletes the original buffer when an error occurs.
|
|
.Sh SEE ALSO
|
|
.Xr realloc 3
|
|
.Sh HISTORY
|
|
The
|
|
.Fn reallocf
|
|
function first appeared in
|
|
.Fx 3.0 .
|