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-.\" Copyright (c) 2006,2008 Joseph Koshy. All rights reserved.
-.\"
-.\" 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.
-.\"
-.\" This software is provided by Joseph Koshy ``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 Joseph Koshy 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.
-.\"
-.\" $Id: elf_version.3 2123 2011-11-09 15:40:09Z jkoshy $
-.\"
-.Dd November 9, 2011
-.Os
-.Dt ELF_VERSION 3
-.Sh NAME
-.Nm elf_version
-.Nd retrieve or set ELF library operating version
-.Sh LIBRARY
-.Lb libelf
-.Sh SYNOPSIS
-.In libelf.h
-.Ft unsigned int
-.Fn elf_version "unsigned int version"
-.Sh DESCRIPTION
-The
-.Fn elf_version
-function is used to query the current operating version of the ELF
-library, and to inform the ELF library about the application's desired
-operating version.
-.Pp
-If the argument
-.Ar version
-is
-.Dv EV_NONE ,
-the
-.Fn elf_version
-function returns the currently configured operating version for the
-ELF library.
-.Pp
-If the argument
-.Ar version
-is not
-.Dv EV_NONE ,
-and if argument
-.Ar version
-is supported by the ELF library, function
-.Fn elf_version
-sets the library's operating version to
-.Ar version ,
-and returns the previous value of the operating version.
-If argument
-.Ar version
-cannot be supported, then the
-.Fn elf_version
-function returns
-.Dv EV_NONE .
-.Sh RETURN VALUES
-The
-.Fn elf_version
-function returns the currently configured ELF library version, or
-.Dv EV_NONE
-if an unsupported version is requested.
-.Sh EXAMPLES
-An application program would inform the ELF library about its desired
-operating version and check for an error using the following code
-snippet:
-.Bd -literal -offset indent
-if (elf_version(EV_CURRENT) == EV_NONE)
- err(EXIT_FAILURE, "ELF library too old");
-.Ed
-.Sh ERRORS
-Function
-.Fn elf_version
-may fail with the following error:
-.Bl -tag -width "[ELF_E_RESOURCE]"
-.It Bq Er "ELF_E_VERSION"
-An unsupported library version number was requested.
-.El
-.Sh SEE ALSO
-.Xr elf 3 ,
-.Xr gelf 3