c++filt

C++FILT(1)                   GNU Development Tools                  C++FILT(1)



NAME
       c++filt - Demangle C++ and Java symbols.

SYNOPSIS
       c++filt [-_--strip-underscores]
               [-j--java]
               [-n--no-strip-underscores]
               [-p--no-params]
               [-s format--format=format]
               [--help]  [--version]  [symbol...]

DESCRIPTION
       The C++ and Java languages provides function overloading, which means
       that you can write many functions with the same name (providing each
       takes parameters of different types).  All C++ and Java function names
       are encoded into a low-level assembly label (this process is known as
       mangling). The c++filt [1] program does the inverse mapping: it decodes
       (demangles) low-level names into user-level names so that the linker
       can keep these overloaded functions from clashing.

       Every alphanumeric word (consisting of letters, digits, underscores,
       dollars, or periods) seen in the input is a potential label.  If the
       label decodes into a C++ name, the C++ name replaces the low-level name
       in the output.

       You can use c++filt to decipher individual symbols:

               c++filt <symbol>

       If no symbol arguments are given, c++filt reads symbol names from the
       standard input and writes the demangled names to the standard output.
       All results are printed on the standard output.

OPTIONS
       -_
       --strip-underscores
           On some systems, both the C and C++ compilers put an underscore in
           front of every name.  For example, the C name "foo" gets the low-
           level name "_foo".  This option removes the initial underscore.
           Whether c++filt removes the underscore by default is target
           dependent.

       -j
       --java
           Prints demangled names using Java syntax.  The default is to use
           C++ syntax.

       -n
       --no-strip-underscores
           Do not remove the initial underscore.

       -p
       --no-params
           When demangling the name of a function, do not display the types of
           the function's parameters.

       -s format
       --format=format
           c++filt can decode various methods of mangling, used by different
           compilers.  The argument to this option selects which method it
           uses:

           "auto"
               Automatic selection based on executable (the default method)

           "gnu"
               the one used by the GNU C++ compiler (g++)

           "lucid"
               the one used by the Lucid compiler (lcc)

           "arm"
               the one specified by the C++ Annotated Reference Manual

           "hp"
               the one used by the HP compiler (aCC)

           "edg"
               the one used by the EDG compiler

           "gnu-v3"
               the one used by the GNU C++ compiler (g++) with the V3 ABI.

           "java"
               the one used by the GNU Java compiler (gcj)

           "gnat"
               the one used by the GNU Ada compiler (GNAT).

       --help
           Print a summary of the options to c++filt and exit.

       --version
           Print the version number of c++filt and exit.

FOOTNOTES
       1.  MS-DOS does not allow "+" characters in file names, so on MS-DOS
           this program is named c++filt.

SEE ALSO
       the Info entries for binutils.

COPYRIGHT
       Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
       2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.

       Permission is granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version 1.1 or
       any later version published by the Free Software Foundation; with no
       Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
       Texts.  A copy of the license is included in the section entitled ``GNU
       Free Documentation License''.



binutils-2.15.94.0.2.2            2005-08-05                        C++FILT(1)