/usr/share/cafeobj-1.5/lib/rat.cafe is in cafeobj 1.5.7-1.
This file is owned by root:root, with mode 0o644.
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** Copyright (c) 2000-2015, Toshimi Sawada. All rights reserved.
**
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** modification, are permitted provided that the following conditions
** are met:
**
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
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** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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**
sys:mod! RAT
principal-sort Rat
{
imports {
protecting (INT)
protecting (RAT-VALUE)
}
signature {
op - _ : Rat -> Rat { demod prec: 15 }
op - _ : NzRat -> NzRat { demod prec: 15 }
op _ - _ : Rat Rat -> Rat { strat: (0 1 2) demod prec: 33 r-assoc }
pred _ >= _ : Rat Rat { demod prec: 41 }
pred _ > _ : Rat Rat { demod prec: 41 }
pred _ <= _ : Rat Rat { demod prec: 41 }
pred _ < _ : Rat Rat { demod prec: 41 }
op _ * _ : Rat Rat -> Rat { assoc comm idr: 1 demod prec: 41 }
op _ + _ : Rat Rat -> Rat { assoc comm idr: 0 demod prec: 41 }
op _ rem _ : Rat NzRat -> Rat { demod prec: 41 }
op _ / _ : Rat NzRat -> Rat { demod prec: 31 l-assoc }
op _ / _ : NzRat NzRat -> NzRat { demod prec: 31 l-assoc }
}
axioms {
var R : Rat
var S : Rat
var NS : NzRat
eq [:BDEMOD]: (R + S) = #! (+ r s) .
eq [:BDEMOD]: (- R) = #! (- r) .
eq [:BDEMOD]: (R - S) = (R + (- S)) .
eq [:BDEMOD]: (R * S) = #! (* r s) .
eq [:BDEMOD]: (R / NS) = #! (/ r ns) .
eq [:BDEMOD]: (R rem NS) = #! (rem r ns) .
eq [:BDEMOD]: (R < S) = #! (< r s) .
eq [:BDEMOD]: (R <= S) = #! (<= r s) .
eq [:BDEMOD]: (R > S) = #! (> r s) .
eq [:BDEMOD]: (R >= S) = #! (>= r s) .
}
}
lispq
(when (fboundp 'chaos-rat-tram-interface) (fmakunbound 'chaos-rat-tram-interface))
lispq
(defun chaos-rat-tram-interface ()
(setq *z-rat* (get-z-module-or-panic "RAT"))
(push *z-rat* *tram-builtin-modules*))
lispq
(eval-when (:execute :load-toplevel)
(chaos-rat-tram-interface))
protect RAT
provide rat
--
eof
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