abstract class $IS_NIL


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



Public


Features
is_nil : BOOL ;

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