X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Foperators.cpp;h=506f47b7a77e9d9b9072c4fca09e1e4683908f4f;hb=ba0fa799375b03d3e8d512b0a6b2b6f1ef14e6e5;hp=abd5061cee9e9bed2b824abe47036e514c71ae68;hpb=6b3768e8c544739ae53321539cb4d1e3112ded1b;p=ginac.git

diff --git a/ginac/operators.cpp b/ginac/operators.cpp
index abd5061c..506f47b7 100644
--- a/ginac/operators.cpp
+++ b/ginac/operators.cpp
@@ -2,381 +2,272 @@
  *
  *  Implementation of GiNaC's overloaded operators. */
 
-#include <iostream>
-#include <stdexcept>
-
-#include "ginac.h"
-
-// binary arithmetic operators ex with ex
-
-ex operator+(ex const & lh, ex const & rh)
-{
-    debugmsg("operator+(ex,ex)",LOGLEVEL_OPERATOR);
-    return lh.exadd(rh);
-}
-
-ex operator-(ex const & lh, ex const & rh)
-{
-    debugmsg("operator-(ex,ex)",LOGLEVEL_OPERATOR);
-    return lh.exadd(rh.exmul(exMINUSONE()));
-}
-
-ex operator*(ex const & lh, ex const & rh)
-{
-    debugmsg("operator*(ex,ex)",LOGLEVEL_OPERATOR);
-    return lh.exmul(rh);
-}
-
-ex operator/(ex const & lh, ex const & rh)
-{
-    debugmsg("operator*(ex,ex)",LOGLEVEL_OPERATOR);
-    return lh.exmul(power(rh,exMINUSONE()));
-}
-
-ex operator%(ex const & lh, ex const & rh)
-{
-    debugmsg("operator%(ex,ex)",LOGLEVEL_OPERATOR);
-    return lh.exncmul(rh);
-}
-
 /*
+ *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *
+ *  This program 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 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
 
-// binary arithmetic operators ex with numeric
-
-ex operator+(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator+(ex,numeric)",LOGLEVEL_OPERATOR);
-    return lh+ex(rh);
-}
-
-ex operator-(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator-(ex,numeric)",LOGLEVEL_OPERATOR);
-    return lh-ex(rh);
-}
+#include <iostream>
+#include <stdexcept>
 
-ex operator*(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator*(ex,numeric)",LOGLEVEL_OPERATOR);
-    return lh*ex(rh);
-}
+#include "operators.h"
+#include "basic.h"
+#include "ex.h"
+#include "numeric.h"
+#include "power.h"
+#include "relational.h"
+#include "debugmsg.h"
+#include "utils.h"
 
-ex operator/(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator/(ex,numeric)",LOGLEVEL_OPERATOR);
-    return lh/ex(rh);
-}
-
-ex operator%(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator%(ex,numeric)",LOGLEVEL_OPERATOR);
-    return lh%ex(rh);
-}
+#ifndef NO_NAMESPACE_GINAC
+namespace GiNaC {
+#endif // ndef NO_NAMESPACE_GINAC
 
-// binary arithmetic operators numeric with ex
+// binary arithmetic operators ex with ex
 
-ex operator+(numeric const & lh, ex const & rh)
+ex operator+(const ex & lh, const ex & rh)
 {
-    debugmsg("operator+(numeric,ex)",LOGLEVEL_OPERATOR);
-    return ex(lh)+rh;
+	debugmsg("operator+(ex,ex)",LOGLEVEL_OPERATOR);
+	return lh.exadd(rh);
 }
 
-ex operator-(numeric const & lh, ex const & rh)
+ex operator-(const ex & lh, const ex & rh)
 {
-    debugmsg("operator-(numeric,ex)",LOGLEVEL_OPERATOR);
-    return ex(lh)-rh;
+	debugmsg("operator-(ex,ex)",LOGLEVEL_OPERATOR);
+	return lh.exadd(rh.exmul(_ex_1()));
 }
 
-ex operator*(numeric const & lh, ex const & rh)
+ex operator*(const ex & lh, const ex & rh)
 {
-    debugmsg("operator*(numeric,ex)",LOGLEVEL_OPERATOR);
-    return ex(lh)*rh;
+	debugmsg("operator*(ex,ex)",LOGLEVEL_OPERATOR);
+	return lh.exmul(rh);
 }
 
-ex operator/(numeric const & lh, ex const & rh)
+ex operator/(const ex & lh, const ex & rh)
 {
-    debugmsg("operator/(numeric,ex)",LOGLEVEL_OPERATOR);
-    return ex(lh)/rh;
+	debugmsg("operator/(ex,ex)",LOGLEVEL_OPERATOR);
+	return lh.exmul(power(rh,_ex_1()));
 }
 
-ex operator%(numeric const & lh, ex const & rh)
+ex operator%(const ex & lh, const ex & rh)
 {
-    debugmsg("operator%(numeric,ex)",LOGLEVEL_OPERATOR);
-    return ex(lh)%rh;
+	debugmsg("operator%(ex,ex)",LOGLEVEL_OPERATOR);
+	return lh.exncmul(rh);
 }
 
-*/
 
 // binary arithmetic operators numeric with numeric
 
-numeric operator+(numeric const & lh, numeric const & rh)
+numeric operator+(const numeric & lh, const numeric & rh)
 {
-    debugmsg("operator+(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return lh.add(rh);
+	debugmsg("operator+(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return lh.add(rh);
 }
 
-numeric operator-(numeric const & lh, numeric const & rh)
+numeric operator-(const numeric & lh, const numeric & rh)
 {
-    debugmsg("operator-(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return lh.sub(rh);
+	debugmsg("operator-(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return lh.sub(rh);
 }
 
-numeric operator*(numeric const & lh, numeric const & rh)
+numeric operator*(const numeric & lh, const numeric & rh)
 {
-    debugmsg("operator*(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return lh.mul(rh);
+	debugmsg("operator*(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return lh.mul(rh);
 }
 
-numeric operator/(numeric const & lh, numeric const & rh)
+numeric operator/(const numeric & lh, const numeric & rh)
 {
-    debugmsg("operator/(numeric,ex)",LOGLEVEL_OPERATOR);
-    return lh.div(rh);
+	debugmsg("operator/(numeric,ex)",LOGLEVEL_OPERATOR);
+	return lh.div(rh);
 }
 
-// binary arithmetic assignment operators with ex
 
-ex const & operator+=(ex & lh, ex const & rh)
-{
-    debugmsg("operator+=(ex,ex)",LOGLEVEL_OPERATOR);
-    return (lh=lh+rh);
-}
-
-ex const & operator-=(ex & lh, ex const & rh)
-{
-    debugmsg("operator-=(ex,ex)",LOGLEVEL_OPERATOR);
-    return (lh=lh-rh);
-}
-
-ex const & operator*=(ex & lh, ex const & rh)
-{
-    debugmsg("operator*=(ex,ex)",LOGLEVEL_OPERATOR);
-    return (lh=lh*rh);
-}
-
-ex const & operator/=(ex & lh, ex const & rh)
-{
-    debugmsg("operator/=(ex,ex)",LOGLEVEL_OPERATOR);
-    return (lh=lh/rh);
-}
-
-ex const & operator%=(ex & lh, ex const & rh)
-{
-    debugmsg("operator%=(ex,ex)",LOGLEVEL_OPERATOR);
-    return (lh=lh%rh);
-}
-
-/*
-
-// binary arithmetic assignment operators with numeric
+// binary arithmetic assignment operators with ex
 
-ex const & operator+=(ex & lh, numeric const & rh)
+const ex & operator+=(ex & lh, const ex & rh)
 {
-    debugmsg("operator+=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh+ex(rh));
+	debugmsg("operator+=(ex,ex)",LOGLEVEL_OPERATOR);
+	return (lh=lh+rh);
 }
 
-ex const & operator-=(ex & lh, numeric const & rh)
+const ex & operator-=(ex & lh, const ex & rh)
 {
-    debugmsg("operator-=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh-ex(rh));
+	debugmsg("operator-=(ex,ex)",LOGLEVEL_OPERATOR);
+	return (lh=lh-rh);
 }
 
-ex const & operator*=(ex & lh, numeric const & rh)
+const ex & operator*=(ex & lh, const ex & rh)
 {
-    debugmsg("operator*=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh*ex(rh));
+	debugmsg("operator*=(ex,ex)",LOGLEVEL_OPERATOR);
+	return (lh=lh*rh);
 }
 
-ex const & operator/=(ex & lh, numeric const & rh)
+const ex & operator/=(ex & lh, const ex & rh)
 {
-    debugmsg("operator/=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh/ex(rh));
+	debugmsg("operator/=(ex,ex)",LOGLEVEL_OPERATOR);
+	return (lh=lh/rh);
 }
 
-ex const & operator%=(ex & lh, numeric const & rh)
+const ex & operator%=(ex & lh, const ex & rh)
 {
-    debugmsg("operator%=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh%ex(rh));
+	debugmsg("operator%=(ex,ex)",LOGLEVEL_OPERATOR);
+	return (lh=lh%rh);
 }
 
-*/
 
 // binary arithmetic assignment operators with numeric
 
-numeric const & operator+=(numeric & lh, numeric const & rh)
+const numeric & operator+=(numeric & lh, const numeric & rh)
 {
-    debugmsg("operator+=(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh.add(rh));
+	debugmsg("operator+=(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return (lh=lh.add(rh));
 }
 
-numeric const & operator-=(numeric & lh, numeric const & rh)
+const numeric & operator-=(numeric & lh, const numeric & rh)
 {
-    debugmsg("operator-=(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh.sub(rh));
+	debugmsg("operator-=(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return (lh=lh.sub(rh));
 }
 
-numeric const & operator*=(numeric & lh, numeric const & rh)
+const numeric & operator*=(numeric & lh, const numeric & rh)
 {
-    debugmsg("operator*=(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh.mul(rh));
+	debugmsg("operator*=(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return (lh=lh.mul(rh));
 }
 
-numeric const & operator/=(numeric & lh, numeric const & rh)
+const numeric & operator/=(numeric & lh, const numeric & rh)
 {
-    debugmsg("operator/=(numeric,numeric)",LOGLEVEL_OPERATOR);
-    return (lh=lh.div(rh));
+	debugmsg("operator/=(numeric,numeric)",LOGLEVEL_OPERATOR);
+	return (lh=lh.div(rh));
 }
 
 // unary operators
 
-ex operator+(ex const & lh)
+ex operator+(const ex & lh)
 {
-    return lh;
+	debugmsg("operator+(ex)",LOGLEVEL_OPERATOR);
+	return lh;
 }
 
-ex operator-(ex const & lh)
+ex operator-(const ex & lh)
 {
-    return exMINUSONE()*lh;
+	debugmsg("operator-(ex)",LOGLEVEL_OPERATOR);
+	return lh.exmul(_ex_1());
 }
 
-numeric operator+(numeric const & lh)
+numeric operator+(const numeric & lh)
 {
-    return lh;
+	debugmsg("operator+(numeric)",LOGLEVEL_OPERATOR);
+	return lh;
 }
 
-numeric operator-(numeric const & lh)
+numeric operator-(const numeric & lh)
 {
-    return (numeric(-1)*lh);
+	debugmsg("operator-(numeric)",LOGLEVEL_OPERATOR);
+	return _num_1()*lh;
 }
 
-// binary relational operators ex with ex
-
-relational operator==(ex const & lh, ex const & rh)
+/** Numeric prefix increment.  Adds 1 and returns incremented number. */
+numeric& operator++(numeric & rh)
 {
-    debugmsg("operator==(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::equal);
+	debugmsg("operator++(numeric)",LOGLEVEL_OPERATOR);
+	rh = rh+_num1();
+	return rh;
 }
 
-relational operator!=(ex const & lh, ex const & rh)
+/** Numeric prefix decrement.  Subtracts 1 and returns decremented number. */
+numeric& operator--(numeric & rh)
 {
-    debugmsg("operator!=(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::not_equal);
+	debugmsg("operator--(numeric)",LOGLEVEL_OPERATOR);
+	rh = rh-_num1();
+	return rh;
 }
 
-relational operator<(ex const & lh, ex const & rh)
+/** Numeric postfix increment.  Returns the number and leaves the original
+ *  incremented by 1. */
+numeric operator++(numeric & lh, int)
 {
-    debugmsg("operator<(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less);
+	debugmsg("operator++(numeric,int)",LOGLEVEL_OPERATOR);
+	numeric tmp = lh;
+	lh = lh+_num1();
+	return tmp;
 }
 
-relational operator<=(ex const & lh, ex const & rh)
+/** Numeric Postfix decrement.  Returns the number and leaves the original
+ *  decremented by 1. */
+numeric operator--(numeric & lh, int)
 {
-    debugmsg("operator<=(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less_or_equal);
+	debugmsg("operator--(numeric,int)",LOGLEVEL_OPERATOR);
+	numeric tmp = lh;
+	lh = lh-_num1();
+	return tmp;
 }
 
-relational operator>(ex const & lh, ex const & rh)
-{
-    debugmsg("operator>(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater);
-}
-
-relational operator>=(ex const & lh, ex const & rh)
-{
-    debugmsg("operator>=(ex,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater_or_equal);
-}
-
-/*
-
-// binary relational operators ex with numeric
-
-relational operator==(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator==(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::equal);
-}
-
-relational operator!=(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator!=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::not_equal);
-}
-
-relational operator<(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator<(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less);
-}
-
-relational operator<=(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator<=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less_or_equal);
-}
-
-relational operator>(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator>(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater);
-}
-
-relational operator>=(ex const & lh, numeric const & rh)
-{
-    debugmsg("operator>=(ex,numeric)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater_or_equal);
-}
-
-// binary relational operators numeric with ex
+// binary relational operators ex with ex
 
-relational operator==(numeric const & lh, ex const & rh)
+relational operator==(const ex & lh, const ex & rh)
 {
-    debugmsg("operator==(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::equal);
+	debugmsg("operator==(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::equal);
 }
 
-relational operator!=(numeric const & lh, ex const & rh)
+relational operator!=(const ex & lh, const ex & rh)
 {
-    debugmsg("operator!=(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::not_equal);
+	debugmsg("operator!=(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::not_equal);
 }
 
-relational operator<(numeric const & lh, ex const & rh)
+relational operator<(const ex & lh, const ex & rh)
 {
-    debugmsg("operator<(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less);
+	debugmsg("operator<(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::less);
 }
 
-relational operator<=(numeric const & lh, ex const & rh)
+relational operator<=(const ex & lh, const ex & rh)
 {
-    debugmsg("operator<=(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::less_or_equal);
+	debugmsg("operator<=(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::less_or_equal);
 }
 
-relational operator>(numeric const & lh, ex const & rh)
+relational operator>(const ex & lh, const ex & rh)
 {
-    debugmsg("operator>(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater);
+	debugmsg("operator>(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::greater);
 }
 
-relational operator>=(numeric const & lh, ex const & rh)
+relational operator>=(const ex & lh, const ex & rh)
 {
-    debugmsg("operator>=(numeric,ex)",LOGLEVEL_OPERATOR);
-    return relational(lh,rh,relational::greater_or_equal);
+	debugmsg("operator>=(ex,ex)",LOGLEVEL_OPERATOR);
+	return relational(lh,rh,relational::greater_or_equal);
 }
 
-*/
-
 // input/output stream operators
 
-ostream & operator<<(ostream & os, ex const & e)
+std::ostream & operator<<(std::ostream & os, const ex & e)
 {
-    e.print(os);
-    return os;
+	e.print(os);
+	return os;
 }
 
-istream & operator>>(istream & is, ex & e)
+std::istream & operator>>(std::istream & is, ex & e)
 {
-    throw(std::logic_error("input from streams not yet implemented"));
+	throw (std::logic_error("expression input from streams not implemented"));
 }
 
+#ifndef NO_NAMESPACE_GINAC
+} // namespace GiNaC
+#endif // ndef NO_NAMESPACE_GINAC