Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!ll-xn!mit-eddie!killer!tness7!bellcore!color!kurt From: kurt@color.ctt.bellcore.com (Kurt Gluck(PICS)) Newsgroups: comp.lang.c++ Subject: Re: User defined operators Message-ID: <7291@bellcore.bellcore.com> Date: 10 May 88 21:56:22 GMT References: <1206@its63b.ed.ac.uk> <6590048@hplsla.HP.COM> Sender: news@bellcore.bellcore.com Reply-To: kurt@color.UUCP (Kurt Gluck(PICS)) Organization: Planning and Engineering Systems Lab, Bellcore Lines: 42 How about going with snobols method. Predefine a small number of additional unused operator symbols that can be used. In snobols case the operator symbols are: BINARY OPERATORS Graphic Defnition Associativity Precedence ======= ========================== ============= ========== ~ UNUSED right 12 ? UNUSED left 12 $ immediate value assignment left 11 . conditional value assignment left 11 ! exponentiation right 10 ** exponentiation right 10 % UNUSED left 9 * multiplication left 8 / division left 7 # UNUSED left 6 + addition left 5 - subtraction left 5 @ UNUSED left 4 blank concatenation left 3 | alternation left 2 & UNUSED left 1 UNARY OPERATORS graphic definition ======= ========== ~ negation ? interrogation $ indirect reference . name ! UNUSED % UNUSED * unevaluated expression / UNUSED # UNUSED + positive - negative @ cursor position | UNUSED & keyword