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.\" Copyright (c) 2009-2011 Joseph Koshy <jkoshy@users.sourceforge.net>
.\" 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
.\" in this position and unchanged.
.\" 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 THE AUTHORS ``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 AUTHOR 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: c++filt.1 3195 2015-05-12 17:22:19Z emaste $
.\"
.Dd August 24, 2011
.Os
.Dt C++FILT 1
.Sh NAME
.Nm c++filt
.Nd decode C++ symbols
.Sh SYNOPSIS
.Nm
.Op Fl -help
.Op Fl _ | Fl -strip-underscores
.Op Fl n | Fl -no-strip-underscores
.Op Fl p | Fl -no-params
.Op Fl s Ar scheme | Fl -format Ns = Ns Ar scheme
.Op Fl V | Fl -version
.Op Ar encoded-names ...
.Sh DESCRIPTION
The
.Nm
utility translates encoded C++ symbol names to human-readable form.
.Pp
The
.Nm
utility has two operating modes.
.Bl -bullet
.It
If arguments
.Ar encoded-names
are not specified, then
.Nm
will act as a filter, reading from standard input
and writing to standard output.
.It
If arguments
.Ar encoded-names
are specified, then
.Nm
will decode each such argument in turn, writing its decoded form
to standard output.
.El
.Pp
The
.Nm
utility recognizes the following options:
.Bl -tag -width indent
.It Fl -help
Print a help message and exit.
.It Fl _ | Fl -strip-underscores
Remove a leading underscore from symbol names prior to decoding them.
.It Fl n | Fl -no-strip-underscores
Do not remove leading underscores from names.
.It Fl p | Fl -no-params
This option is recognized but ignored.
.It Fl s Ar scheme | Fl -format Ns = Ns Ar scheme
Select the encoding scheme to use.
Argument
.Ar scheme
can be one of the following:
.Bl -tag -width "gnu-v5"
.It Ar arm
Use the encoding scheme specified by the C++ Annotated Reference Manual.
.It Ar auto
Guess the encoding scheme from the input.
.It Ar gnu
Use the encoding scheme used by the GNU C++ compiler.
.It Ar gnu-v3
Use the encoding scheme used by the GNU C++ compiler, version 3.
.El
.It Fl V | Fl -version
Print a version identifier for
.Nm
and exit.
.El
.Sh EXIT STATUS
.Ex -std
.Sh SEE ALSO
.Xr nm 1 ,
.Xr strip 1 ,
.Xr elftc_demangle 3
.Sh AUTHORS
The
.Nm
utility was written by
.An Kai Wang Aq Mt kaiwang27@users.sourceforge.net .
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