c++filt
decodes (demangles) low-level names into user-level names so that the linker can keep these overloaded functions from clashing.

You
may use
c++filt to demangle
the symbols.

\$ c++filt _ZNSt8ios_base4InitD1Ev
std::ios_base::Init::~Init()

to resolve the issue.

c++filt

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


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.

-_
--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.

Warning: c++filt is a new utility, and the details of its user interface are subject to change in future releases. In particular, a command-line option may be required in the the future to decode a name passed as an argument
on the command line; in other words,

          c++filt symbol


may in a future release become

          c++filt option symbol


#### Footnotes

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