abstract class $IS_NIL


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



Public


Features
is_nil : BOOL ;

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