abstract class $IS_NIL


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



Public


Features
is_nil : BOOL ;

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