* Definition of expression pairs (building blocks of expairseq). */
/*
- * GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 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
#ifndef __GINAC_EXPAIR_H__
#define __GINAC_EXPAIR_H__
-#include <ginac/ex.h>
-#include <ginac/numeric.h>
+#include "ex.h"
+#include "numeric.h"
+
+#ifndef NO_NAMESPACE_GINAC
+namespace GiNaC {
+#endif // ndef NO_NAMESPACE_GINAC
/** A pair of expressions.
* This similar to, but slightly extended STL's pair<> but we need to account
class expair
{
public:
- expair() {}
- ~expair() {}
- expair(expair const & other) : rest(other.rest), coeff(other.coeff)
- {
- ASSERT(is_ex_exactly_of_type(coeff,numeric));
- }
- expair const & operator=(expair const & other)
- {
- if (this != &other) {
- rest=other.rest;
- coeff=other.coeff;
- }
- return *this;
- }
- expair(ex const & r, ex const & c) : rest(r), coeff(c)
- {
- ASSERT(is_ex_exactly_of_type(coeff,numeric));
- }
-
- bool is_numeric_with_coeff_1(void) const
- {
- ASSERT(is_ex_exactly_of_type(coeff,numeric));
- return is_ex_exactly_of_type(rest,numeric) &&
- (ex_to_numeric(coeff).compare(numONE())==0);
- }
-
- bool is_equal(expair const & other) const
- {
- return (rest.is_equal(other.rest) && coeff.is_equal(other.coeff));
- }
- bool is_less(expair const & other) const
- {
- return (rest.compare(other.rest)<0) ||
- (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
- }
- int compare(expair const & other) const
- {
- int cmpval=rest.compare(other.rest);
- if (cmpval!=0) return cmpval;
- cmpval=coeff.compare(other.coeff);
- return cmpval;
- }
-
- bool is_less_old2(expair const & other) const
- {
- /*
- bool this_numeric_with_coeff_1=is_numeric_with_coeff_1();
- bool other_numeric_with_coeff_1=other.is_numeric_with_coeff_1();
- if (this_numeric_with_coeff_1) {
- if (other_numeric_with_coeff_1) {
- // both have coeff 1: compare rests
- return rest.compare(other.rest)<0;
- }
- // only this has coeff 1: >
- return false;
- } else if (other_numeric_with_coeff_1) {
- // only other has coeff 1: <
- return true;
- }
- return (rest.compare(other.rest)<0) ||
- (!(other.rest.compare(rest)<0) &&
- (coeff.compare(other.coeff)<0));
- */
- if (is_ex_exactly_of_type(rest,numeric) &&
- is_ex_exactly_of_type(other.rest,numeric)) {
- if (ex_to_numeric(coeff).compare(numONE())==0) {
- if (ex_to_numeric(other.coeff).compare(numONE())==0) {
- // both have coeff 1: compare rests
- return rest.compare(other.rest)<0;
- }
- // only this has coeff 1: >
- return false;
- } else if (ex_to_numeric(other.coeff).compare(numONE())==0) {
- // only other has coeff 1: <
- return true;
- }
- // neither has coeff 1: usual compare
- }
- return (rest.compare(other.rest)<0) ||
- (!(other.rest.compare(rest)<0) &&
- (coeff.compare(other.coeff)<0));
- }
- int compare_old2(expair const & other) const
- {
- if (is_ex_exactly_of_type(rest,numeric) &&
- is_ex_exactly_of_type(other.rest,numeric)) {
- if (ex_to_numeric(coeff).compare(numONE())==0) {
- if (ex_to_numeric(other.coeff).compare(numONE())==0) {
- // both have coeff 1: compare rests
- return rest.compare(other.rest);
- }
- // only this has coeff 1: >
- return 1;
- } else if (ex_to_numeric(other.coeff).compare(numONE())==0) {
- // only other has coeff 1: <
- return -1;
- }
- // neither has coeff 1: usual compare
- }
- /*
- bool this_numeric_with_coeff_1=is_numeric_with_coeff_1();
- bool other_numeric_with_coeff_1=other.is_numeric_with_coeff_1();
- if (this_numeric_with_coeff_1) {
- if (other_numeric_with_coeff_1) {
- // both have coeff 1: compare rests
- return rest.compare(other.rest);
- }
- // only this has coeff 1: >
- return 1;
- } else if (other_numeric_with_coeff_1) {
- // only other has coeff 1: <
- return -1;
- // neither has coeff 1: usual compare
- }
- */
- int cmpval=rest.compare(other.rest);
- if (cmpval!=0) return cmpval;
- return coeff.compare(other.coeff);
- }
- bool is_less_old(expair const & other) const
- {
- return (rest.compare(other.rest)<0) ||
- (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
- }
- int compare_old(expair const & other) const
- {
- int cmpval=rest.compare(other.rest);
- if (cmpval!=0) return cmpval;
- cmpval=coeff.compare(other.coeff);
- return cmpval;
- }
-
- void printraw(ostream & os) const
- {
- os << "expair(";
- rest.printraw(os);
- os << ",";
- coeff.printraw(os);
- os << ")";
- }
-
- ex rest;
- ex coeff;
+ expair() {}
+ ~expair() {}
+
+ expair(const expair & other) : rest(other.rest), coeff(other.coeff)
+ {
+ GINAC_ASSERT(is_ex_exactly_of_type(coeff,numeric));
+ }
+
+ const expair & operator=(const expair & other)
+ {
+ if (this != &other) {
+ rest=other.rest;
+ coeff=other.coeff;
+ }
+ return *this;
+ }
+
+ expair(const ex & r, const ex & c) : rest(r), coeff(c)
+ {
+ GINAC_ASSERT(is_ex_exactly_of_type(coeff,numeric));
+ }
+
+ bool is_numeric_with_coeff_1(void) const
+ {
+ GINAC_ASSERT(is_ex_exactly_of_type(coeff,numeric));
+ return is_ex_exactly_of_type(rest,numeric)
+ && (coeff.is_equal(ex(1)));
+ }
+
+ bool is_equal(const expair & other) const
+ {
+ return (rest.is_equal(other.rest) && coeff.is_equal(other.coeff));
+ }
+
+ bool is_less(const expair & other) const
+ {
+ return (rest.compare(other.rest)<0)
+ || (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
+ }
+
+ int compare(const expair & other) const
+ {
+ int cmpval=rest.compare(other.rest);
+ if (cmpval!=0) return cmpval;
+ cmpval=coeff.compare(other.coeff);
+ return cmpval;
+ }
+
+ bool is_less_old2(const expair & other) const
+ {
+ /*
+ bool this_numeric_with_coeff_1=is_numeric_with_coeff_1();
+ bool other_numeric_with_coeff_1=other.is_numeric_with_coeff_1();
+ if (this_numeric_with_coeff_1) {
+ if (other_numeric_with_coeff_1) {
+ // both have coeff 1: compare rests
+ return rest.compare(other.rest)<0;
+ }
+ // only this has coeff 1: >
+ return false;
+ } else if (other_numeric_with_coeff_1) {
+ // only other has coeff 1: <
+ return true;
+ }
+ return (rest.compare(other.rest)<0)
+ || (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
+ */
+ if (is_ex_exactly_of_type(rest,numeric) &&
+ is_ex_exactly_of_type(other.rest,numeric)) {
+ if (coeff.is_equal(ex(1))) {
+ if ((other.coeff).is_equal(ex(1))) {
+ // both have coeff 1: compare rests
+ return rest.compare(other.rest)<0;
+ }
+ // only this has coeff 1: >
+ return false;
+ } else if ((other.coeff).is_equal(ex(1))) {
+ // only other has coeff 1: <
+ return true;
+ }
+ // neither has coeff 1: usual compare
+ }
+ return (rest.compare(other.rest)<0)
+ || (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
+ }
+
+ int compare_old2(const expair & other) const
+ {
+ if (is_ex_exactly_of_type(rest,numeric) &&
+ is_ex_exactly_of_type(other.rest,numeric)) {
+ if ((coeff).is_equal(ex(1))) {
+ if ((other.coeff).is_equal(ex(1))) {
+ // both have coeff 1: compare rests
+ return rest.compare(other.rest);
+ }
+ // only this has coeff 1: >
+ return 1;
+ } else if ((other.coeff).is_equal(ex(1))) {
+ // only other has coeff 1: <
+ return -1;
+ }
+ // neither has coeff 1: usual compare
+ }
+ /*
+ bool this_numeric_with_coeff_1=is_numeric_with_coeff_1();
+ bool other_numeric_with_coeff_1=other.is_numeric_with_coeff_1();
+ if (this_numeric_with_coeff_1) {
+ if (other_numeric_with_coeff_1) {
+ // both have coeff 1: compare rests
+ return rest.compare(other.rest);
+ }
+ // only this has coeff 1: >
+ return 1;
+ } else if (other_numeric_with_coeff_1) {
+ // only other has coeff 1: <
+ return -1;
+ // neither has coeff 1: usual compare
+ }
+ */
+ int cmpval=rest.compare(other.rest);
+ if (cmpval!=0) return cmpval;
+ return coeff.compare(other.coeff);
+ }
+
+ bool is_less_old(const expair & other) const
+ {
+ return (rest.compare(other.rest)<0)
+ || (!(other.rest.compare(rest)<0) && (coeff.compare(other.coeff)<0));
+ }
+ int compare_old(const expair & other) const
+ {
+ int cmpval=rest.compare(other.rest);
+ if (cmpval!=0) return cmpval;
+ cmpval=coeff.compare(other.coeff);
+ return cmpval;
+ }
+
+ void printraw(std::ostream & os) const
+ {
+ os << "expair(";
+ rest.printraw(os);
+ os << ",";
+ coeff.printraw(os);
+ os << ")";
+ }
+
+ ex rest;
+ ex coeff;
};
class expair_is_less
{
public:
- bool operator()(expair const & lh, expair const & rh) const
- {
- return lh.is_less(rh);
- }
+ bool operator()(const expair & lh, const expair & rh) const
+ {
+ return lh.is_less(rh);
+ }
};
class expair_is_less_old
{
public:
- bool operator()(expair const & lh, expair const & rh) const
- {
- return lh.is_less_old(rh);
- }
+ bool operator()(const expair & lh, const expair & rh) const
+ {
+ return lh.is_less_old(rh);
+ }
};
+#ifndef NO_NAMESPACE_GINAC
+} // namespace GiNaC
+#endif // ndef NO_NAMESPACE_GINAC
+
#endif // ndef __GINAC_EXPAIR_H__
git://www.ginac.de / ginac.git / blobdiff