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95 lines
3.2 KiB
Scheme
95 lines
3.2 KiB
Scheme
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; gnc-numeric.scm : rational number representation for gnucash
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;; Copyright 2000 Bill Gribble <grib@gnumatic.com>
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;; Copyright 2001 Christian Stimming <stimming@tu-harburg.de>
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;;
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 2 of
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;; the License, or (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; if not, contact:
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;;
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;; Free Software Foundation Voice: +1-617-542-5942
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;; 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652
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;; Boston, MA 02110-1301, USA gnu@gnu.org
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define-module (gnucash engine gnc-numeric))
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(use-modules (srfi srfi-9))
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(export GNC-RND-FLOOR)
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(export GNC-RND-CEIL)
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(export GNC-RND-TRUNC)
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(export GNC-RND-PROMOTE)
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(export GNC-RND-ROUND-HALF-DOWN)
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(export GNC-RND-ROUND-HALF-UP)
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(export GNC-RND-ROUND)
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(export GNC-RND-NEVER)
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(export GNC-DENOM-AUTO)
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(export GNC-DENOM-REDUCE)
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(export GNC-DENOM-FIXED)
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(export GNC-DENOM-LCD)
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(export GNC-DENOM-SIGFIG)
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(export GNC-DENOM-SIGFIGS)
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(export GNC-ERROR-OK)
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(export GNC-ERROR-ARG)
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(export GNC-ERROR-OVERFLOW)
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(export GNC-ERROR-DENOM-DIFF)
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(export GNC-ERROR-REMAINDER)
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(export :gnc-monetary)
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(export gnc:gnc-monetary?)
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(export gnc:make-gnc-monetary)
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(export gnc:gnc-monetary-commodity)
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(export gnc:gnc-monetary-amount)
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(export gnc:monetary-neg)
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;; use 'logior' in guile to bit-combine RND and DENOM flags.
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(define GNC-RND-FLOOR 1)
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(define GNC-RND-CEIL 2)
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(define GNC-RND-TRUNC 3)
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(define GNC-RND-PROMOTE 4)
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(define GNC-RND-ROUND-HALF-DOWN 5)
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(define GNC-RND-ROUND-HALF-UP 6)
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(define GNC-RND-ROUND 7)
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(define GNC-RND-NEVER 8)
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(define GNC-DENOM-AUTO 0)
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(define GNC-DENOM-REDUCE 32)
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(define GNC-DENOM-FIXED 64)
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(define GNC-DENOM-LCD 48)
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(define GNC-DENOM-SIGFIG 80)
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(define (GNC-DENOM-SIGFIGS n)
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(logior GNC-DENOM-SIGFIG (* n 256)))
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(define GNC-ERROR-OK 0)
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(define GNC-ERROR-ARG -1)
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(define GNC-ERROR-OVERFLOW -2)
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(define GNC-ERROR-DENOM-DIFF -3)
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(define GNC-ERROR-REMAINDER -4)
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(define-record-type :gnc-monetary
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(make-gnc-monetary commodity amount)
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gnc-monetary?
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(commodity gnc-monetary-commodity)
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(amount gnc-monetary-amount))
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(define gnc:make-gnc-monetary make-gnc-monetary)
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(define gnc:gnc-monetary? gnc-monetary?)
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(define gnc:gnc-monetary-commodity gnc-monetary-commodity)
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(define gnc:gnc-monetary-amount gnc-monetary-amount)
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(define (gnc:monetary-neg a)
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(gnc:make-gnc-monetary
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(gnc:gnc-monetary-commodity a)
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(- (gnc:gnc-monetary-amount a))))
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