abstract class $HASH < $IS_EQ
****
Subtypes of this must provide a hash routine. This is the *new* $HASH class and is a subtype of $IS_EQ so that all subtypes must redefine both hash and is_eq. These two routines must work together - is_eq must refer to an immutable equality


Ancestors
$IS_EQ

Descendants
SL2P FINITE_FIELD FSTR FLTD
PERM FLT CHAR STR
INT TUP{_,_,_,_} $VBAG{_} $VSET{_}
VSET{_} $VMULTIMAP{_,_} $VMAP{_,_} VMAP{_,_}
VMULTIMAP{_,_} VBAG{_} INTI TUP{_,_}



Public


Features
hash: INT;

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