freebsd man page for dwarf_hasattr

DWARF_HASATTR(3)					   BSD Library Functions Manual 					  DWARF_HASATTR(3)

NAME
     dwarf_hasattr -- check for the presence of an attribute

LIBRARY
     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS
     #include <libdwarf.h>

     int
     dwarf_hasattr(Dwarf_Die die, Dwarf_Half attr, Dwarf_Bool *ret_bool, Dwarf_Error *err);

DESCRIPTION
     Function dwarf_hasattr() tests whether the debugging information entry referenced in argument die contains the attribute named by argument
     attr.  Legal values for argument attr are those denoted by the DW_AT_* constants in the DWARF specification.

     If the named attribute is present in the debugging information entry, function dwarf_hasattr() returns a non-zero value in the location
     pointed to by argument ret_bool.  If the named attribute is not present, a zero is written instead.

     If argument err is not NULL, it will be used to return an error descriptor in case of an error.

RETURN VALUES
     On success, function dwarf_hasattr() returns DW_DLV_OK.  In case of an error, it returns DW_DLV_ERROR and sets argument err.

ERRORS
     Function dwarf_hasattr() can fail with the following error:

     [DW_DLE_ARGUMENT]	Either of argument die or ret_bool was NULL.

SEE ALSO
     dwarf(3), dwarf_attr(3), dwarf_whatattr(3)

BSD
								  April 17, 2010							       BSD