/usr/share/cafeobj-1.5/lib/nznat.cafe is in cafeobj 1.5.7-1.
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** NZNAT
**
**
** Copyright (c) 2000-2015, Toshimi Sawada. All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** 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.
**
** * Redistributions in binary form must reproduce the above
** copyright notice, this list of conditions and the following
** disclaimer in the documentation and/or other materials
** provided with the distribution.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
** OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
** GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
** INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
sys:mod! NZNAT
principal-sort NzNat
{
imports {
protecting (NZNAT-VALUE)
protecting (BOOL)
}
signature {
op _ + _ : NzNat NzNat -> NzNat { assoc comm demod prec: 33 r-assoc }
op d : NzNat NzNat -> NzNat { comm demod prec: 0 }
op _ * _ : NzNat NzNat -> NzNat { assoc comm idr: 1 demod prec: 31 r-assoc }
op _ quot _ : NzNat NzNat -> NzNat { demod prec: 31 l-assoc }
pred _ < _ : NzNat NzNat { demod prec: 51 }
pred _ <= _ : NzNat NzNat { demod prec: 51 }
pred _ > _ : NzNat NzNat { demod prec: 51 }
pred _ >= _ : NzNat NzNat { demod prec: 51 }
op s _ : NzNat -> NzNat { demod prec: 15 }
}
axioms {
var NN : NzNat
var NM : NzNat
eq [:BDEMOD]: (NN + NM) = #! (+ nn nm) .
eq [:BDEMOD]: d(NN,NM) = #! (if (= nn nm) 1 (abs (- nn nm))) .
eq [:BDEMOD]: (NN * NM) = #! (* nn nm) .
eq [:BDEMOD]: (NN quot NM) = #! (if (> nn nm) (truncate nn nm) 1) .
eq [:BDEMOD]: (NN < NM) = #! (< nn nm) .
eq [:BDEMOD]: (NN <= NM) = #! (<= nn nm) .
eq [:BDEMOD]: (NN > NM) = #! (> nn nm) .
eq [:BDEMOD]: (NN >= NM) = #! (>= nn nm) .
eq [:BDEMOD]: (s NN) = #! (1+ nn) .
}
}
lispq
(when (fboundp 'chaos-nznat-tram-interface) (fmakunbound 'chaos-nznat-tram-interface))
lispq
(defun chaos-nznat-tram-interface ()
(setq *z-nznat* (get-z-module-or-panic "NZNAT"))
(pushnew *z-nznat* *tram-builtin-modules*))
lispq
(eval-when (:execute :load-toplevel)
(chaos-nznat-tram-interface))
protect NZNAT
provide nznat
--
eof
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