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MAN page from Trustix binutils-2.13.2-3tr.i586.rpm

C++FILT

Section: GNU Development Tools (1)
Updated: 2002-08-05
Index 

NAME

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

SYNOPSIS

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

DESCRIPTION

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

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

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

        c++filt <symbol>
If no symbol arguments are given, c++filt reads symbolnames from the standard input and writes the demangled names to thestandard 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 frontof every name. For example, the C name "foo" gets the low-levelname "_foo". This option removes the initial underscore. Whetherc++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.
-s format
--format=format
GNU nm can decode three different methods of mangling, used bydifferent C++ compilers. The argument to this option selects whichmethod it uses:
gnu
the one used by the GNU compiler (the default method)
lucid
the one used by the Lucid compiler
arm
the one specified by the C++ Annotated Reference Manual
hp
the one used by the HP compiler
edg
the one used by the EDG compiler
gnu-new-abi
the one used by the GNU compiler with the new ABI.
--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 onMS-DOS this program is named c++filt.
 

SEE ALSO

the Info entries for binutils. 

COPYRIGHT

Copyright (c) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002 Free Software Foundation, Inc.

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
FOOTNOTES
SEE ALSO
COPYRIGHT

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