Retrieving tag,attribute,etc names

Example getting tag,attribute,etc names as strings.

*/
void examplezb(void)
{
    const char * out = "unknown something";
    int          res = 0;
 
    /*  The following is wrong, do not do it!
        Confusing TAG with ACCESS!  */
    res = dwarf_get_ACCESS_name(DW_TAG_entry_point,&out);
    /*  Nothing one does here with 'res' or 'out'
        is meaningful. */
 
    out = "<unknown TAG>"; /* Not a malloc'd string! */
    /* The following is meaningful.*/
    res = dwarf_get_TAG_name(DW_TAG_entry_point,&out);
    (void)res; /*  avoids unused var compiler warning */
    /*  If res == DW_DLV_ERROR or DW_DLV_NO_ENTRY
        out will be the locally assigned static string.
        If res == DW_DLV_OK it will be a usable
        TAG name string.
        In no case should a returned string be free()d. */
}