Manual Pages  — ELFTC_DEMANGLE

elftc_demangle – demangle a C++ name

LIBRARY SYNOPSIS DESCRIPTION RETURN VALUES EXAMPLES ERRORS SEE ALSO

libelftc

#include <libelftc.h>

int
elftc_demangle(const char *encodedname, char *buffer, size_t bufsize, unsigned int flags);

Function elftc_demangle() decodes a symbol name encoded according to the type encoding rules for the C++ language and returns a string denoting an equivalent C++ prototype.

Argument encodedname specifies the encoded symbol name. Argument buffer denotes a programmer-specified area to place the prototype string in. Argument bufsize specifies the size of the programmer-specified area. Argument flags specifies the encoding style in use for argument encodedname. Supported encoding styles are:

ELFTC_DEM_ARM	The encoding style used by compilers adhering to the conventions of the C++ Annotated Reference Manual.
ELFTC_DEM_GNU2
	The encoding style by GNU C++ version 2.
ELFTC_DEM_GNU3
	The encoding style by GNU C++ version 3 and later.

Argument flags may be zero, in which case the function will attempt to guess the encoding scheme from the contents of encodedname.

Function elftc_demangle() returns 0 on success. In case of an error it returns -1 and sets the errno variable.

To decode a name that uses an unknown encoding style use:

char buffer[1024];
const char *funcname;

funcname = ...; /* points to string to be demangled */
if (elftc_demangle(funcname, buffer, sizeof(buffer), 0) == 0)
        printf("Demangled name: % , buffer);
else
        perror("Cannot demangle %s", funcname);

Function elftc_demangle() may fail with the following errors:

[EINVAL]	Argument encodedname was not a valid encoded name.
[ENAMETOOLONG]	The output buffer specified by arguments buffer and bufsize was too small to hold the decoded function prototype.