.\" #
.\" # Copyright (c) 2014, Juniper Networks, Inc.
.\" # All rights reserved.
.\" # This SOFTWARE is licensed under the LICENSE provided in the
.\" # ../Copyright file. By downloading, installing, copying, or 
.\" # using the SOFTWARE, you agree to be bound by the terms of that
.\" # LICENSE.
.\" # Phil Shafer, July 2014
.\" 
.Dd July, 2014
.Dt LIBXO 3
.Os
.Sh NAME
.Nm xo_emit
.Nd emit formatted output based on format string and arguments
.Sh LIBRARY
.Lb libxo
.Sh SYNOPSIS
.In libxo/xo.h
.Sy typedef void *(*xo_realloc_func_t)(void *, size_t);
.Pp
.Sy typedef void (*xo_free_func_t)(void *);
.Ft void
.Fn xo_set_allocator "xo_realloc_func_t realloc_func" "xo_free_func_t free_func"
.Sh DESCRIPTION
The
.Fn xo_set_allocator
function allows libxo to be used in environments
where the standard
.Xr realloc 3
and
.Xr free 3
functions are not available.
.Pp
.Fa realloc_func
should expect the same arguments as
.Xr realloc 3
and return
a pointer to memory following the same convention.
.Fa free_func
will receive the same argument as
.Xr free 3
and should release it, asappropriate for the environment.
.Pp
By default, the standard
.Xr realloc 3
and
.Xr free 3
functions are used.
.Sh ADDITIONAL DOCUMENTATION
.Pp
Complete documentation can be found on github:
.Bd -literal -offset indent
http://juniper.github.io/libxo/libxo-manual.html
.Ed
.Pp
libxo lives on github as:
.Bd -literal -offset indent
https://github.com/Juniper/libxo
.Ed
.Pp
The latest release of libxo is available at:
.Bd -literal -offset indent
https://github.com/Juniper/libxo/releases
.Ed
.Sh SEE ALSO
.Xr xo_emit 3
.Sh HISTORY
The
.Fa libxo
library was added in FreeBSD 11.0.
.Sh AUTHOR
Phil Shafer