MirOS Manual: c++filt(1)


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

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

         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 CXXFILT.

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

SEE ALSO

     the Info entries for binutils.

COPYRIGHT

     Copyright (c) 1991, 1992, 1993, 1994, 1995, 1996, 1997,
     1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 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''.

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