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;;; calc-macs.el --- important macros for Calc -*- lexical-binding:t -*-
;; Copyright (C) 1990-1993, 2001-2019 Free Software Foundation, Inc.
;; Author: David Gillespie <daveg@synaptics.com>
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
;; Declare functions which are defined elsewhere.
(declare-function math-zerop "calc-misc" (a))
(declare-function math-negp "calc-misc" (a))
(declare-function math-looks-negp "calc-misc" (a))
(declare-function math-posp "calc-misc" (a))
(declare-function math-compare "calc-ext" (a b))
(declare-function math-bignum "calc" (a))
(declare-function math-compare-bignum "calc-ext" (a b))
(defmacro calc-wrapper (&rest body)
`(calc-do (function (lambda ()
,@body))))
(defmacro calc-slow-wrapper (&rest body)
`(calc-do
(function (lambda () ,@body)) (point)))
(defmacro math-showing-full-precision (form)
`(let ((calc-float-format calc-full-float-format))
,form))
(defmacro math-with-extra-prec (delta &rest body)
`(math-normalize
(let ((calc-internal-prec (+ calc-internal-prec ,delta)))
,@body)))
(defmacro math-working (msg arg) ; [Public]
`(if (eq calc-display-working-message 'lots)
(math-do-working ,msg ,arg)))
(defmacro calc-with-default-simplification (&rest body)
`(let ((calc-simplify-mode (and (not (memq calc-simplify-mode '(none num)))
calc-simplify-mode)))
,@body))
(defmacro calc-with-trail-buffer (&rest body)
`(let ((save-buf (current-buffer))
(calc-command-flags nil))
(with-current-buffer (calc-trail-display t)
(progn
(goto-char calc-trail-pointer)
,@body))))
;;; Faster in-line version zerop, normalized values only.
(defsubst Math-zerop (a) ; [P N]
(if (consp a)
(and (not (memq (car a) '(bigpos bigneg)))
(if (eq (car a) 'float)
(eq (nth 1 a) 0)
(math-zerop a)))
(eq a 0)))
(defsubst Math-integer-negp (a)
(if (consp a)
(eq (car a) 'bigneg)
(< a 0)))
(defsubst Math-integer-posp (a)
(if (consp a)
(eq (car a) 'bigpos)
(> a 0)))
(defsubst Math-negp (a)
(if (consp a)
(or (eq (car a) 'bigneg)
(and (not (eq (car a) 'bigpos))
(if (memq (car a) '(frac float))
(Math-integer-negp (nth 1 a))
(math-negp a))))
(< a 0)))
(defsubst Math-looks-negp (a) ; [P x] [Public]
(or (Math-negp a)
(and (consp a) (or (eq (car a) 'neg)
(and (memq (car a) '(* /))
(or (math-looks-negp (nth 1 a))
(math-looks-negp (nth 2 a))))))))
(defsubst Math-posp (a)
(if (consp a)
(or (eq (car a) 'bigpos)
(and (not (eq (car a) 'bigneg))
(if (memq (car a) '(frac float))
(Math-integer-posp (nth 1 a))
(math-posp a))))
(> a 0)))
(defsubst Math-integerp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg))))
(defsubst Math-natnump (a)
(if (consp a)
(eq (car a) 'bigpos)
(>= a 0)))
(defsubst Math-ratp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac))))
(defsubst Math-realp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac float))))
(defsubst Math-anglep (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac float hms))))
(defsubst Math-numberp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac float cplx polar))))
(defsubst Math-scalarp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac float cplx polar hms))))
(defsubst Math-vectorp (a)
(and (consp a) (eq (car a) 'vec)))
(defsubst Math-messy-integerp (a)
(and (consp a)
(eq (car a) 'float)
(>= (nth 2 a) 0)))
(defsubst Math-objectp (a) ; [Public]
(or (not (consp a))
(memq (car a)
'(bigpos bigneg frac float cplx polar hms date sdev intv mod))))
(defsubst Math-objvecp (a) ; [Public]
(or (not (consp a))
(memq (car a)
'(bigpos bigneg frac float cplx polar hms date
sdev intv mod vec))))
;;; Compute the negative of A. [O O; o o] [Public]
(defsubst Math-integer-neg (a)
(if (consp a)
(if (eq (car a) 'bigpos)
(cons 'bigneg (cdr a))
(cons 'bigpos (cdr a)))
(- a)))
(defsubst Math-equal (a b)
(= (math-compare a b) 0))
(defsubst Math-lessp (a b)
(= (math-compare a b) -1))
(defsubst Math-primp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg frac float cplx polar
hms date mod var))))
(defsubst Math-num-integerp (a)
(or (not (consp a))
(memq (car a) '(bigpos bigneg))
(and (eq (car a) 'float)
(>= (nth 2 a) 0))))
(defsubst Math-bignum-test (a) ; [B N; B s; b b]
(if (consp a)
a
(math-bignum a)))
(defsubst Math-equal-int (a b)
(or (eq a b)
(and (consp a)
(eq (car a) 'float)
(eq (nth 1 a) b)
(= (nth 2 a) 0))))
(defsubst Math-natnum-lessp (a b)
(if (consp a)
(and (consp b)
(= (math-compare-bignum (cdr a) (cdr b)) -1))
(or (consp b)
(< a b))))
(provide 'calc-macs)
;;; calc-macs.el ends here
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