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DWARF_HASATTR(3) FreeBSD 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)
FreeBSD 14.0-RELEASE-p6 April 17, 2010 FreeBSD 14.0-RELEASE-p6