abstract class $IS_NIL


Descendants
$NIL RAT RECTANGLE $STRINGS
$FSTRINGS $FSTRING{_} FBINSTR $FTEXT_STRING{_}
$FTEXT_STRING{_,_,_} FRUNES FSTR $STRING{_}
$STRING{_,_,_} BINSTR $TEXT_STRING{_} $TEXT_STRING{_,_,_}
HEX_STR STR RUNES $SEARCH{_,_}
TOKEN $VALUE{_} $ORDERED{_} TIMES
CHAR_CODE ELAPSED UNICODE TIME_STAMP
ORDER_WEIGHT $CHAR{_} CHAR RUNE
$DATES{_} ERA_DATES DATES ANGLE
ANGLED $NFE{_} MONEY $ARITHMETIC{_}
$COMPLEX{_,_} CPX CPXD $RATIONAL{_}
$REAL{_} FLTD FLT $SIMPLE_NUM{_}
$WHOLE_NUM{_} INTI $CARDINAL{_} $INTEGER{_}
INT FIELD CARD $ENUMS{_}
DT_CODES TRI_STATE FILE_MODES CATEGORIES
TIME_SUFFIX MONTHS MAP_MODES ERE_LEX_TOKENS
SALUTATIONS CONDITIONALS CHAR_CLASS CONVERSION_RESULTS
FILE_LOCS SYMBOLS SIGN_POSITIONS ADDRESS_KEYS
UNITS CAT_STANDARDS CODE_KINDS MAP_PARTS
NAME_CODES SYS_EXCEPT ERE_ERROR_KINDS WEEKDAYS
UNIT_KINDS MONETARY_UNITS FLUSH_CMDS SCRIPTS
SYS_CHANS PERMISSIONS MON_SPACING ADDRESS_CODES
PATH_KINDS DATE_FORMS DATE_SUFFICES CAL_DISPLAY_ORDERS
DIRECTIONS PHONE_CODES FILE_KINDS INFO_KINDS
ACCESS_CODES CHAR_MAPPINGS CURSOR_ERRORS VERSION_KEYS
NUM_SIGNS



Public


Features
is_nil : BOOL ;

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