NAME

elftc_demangle — demangle a C++ name

LIBRARY

library “libelftc”

SYNOPSIS

#include <libelftc.h>

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

DESCRIPTION

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.

RETURN VALUES

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

EXAMPLES

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: %\n", buffer); 
else 
	perror("Cannot demangle %s", funcname);

ERRORS

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.