Frobby 0.9.5
VarSorter.h
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1/* Frobby: Software for monomial ideal computations.
2 Copyright (C) 2007 Bjarke Hammersholt Roune (www.broune.com)
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see http://www.gnu.org/licenses/.
16*/
17
18#ifndef VAR_SORTER_GUARD
19#define VAR_SORTER_GUARD
20
21#include "VarNames.h"
22#include <vector>
23#include "Term.h"
24
25class TermTranslator;
26
27struct VarSorter {
28 // Makes this object represent a sorted permutation of names.
29 VarSorter(const VarNames& names);
30
31 // Permute the variables according to the permutation generated at
32 // construction.
33 void permute(vector<mpz_class>& term);
34 void permute(Exponent* term);
36
37 // Set the parameter equal the names this object represents in
38 // sorted order.
40
41private:
42 vector<size_t> _permutation;
44 vector<mpz_class> _bigTmpTerm;
46};
47
48#endif
void nameFactoryRegister(NameFactory< AbstractProduct > &factory)
Registers the string returned by ConcreteProduct::getStaticName() to a function that default-construc...
TermTranslator handles translation between terms whose exponents are infinite precision integers and ...
Term represents a product of variables which does not include a coefficient.
Definition Term.h:49
Defines the variables of a polynomial ring and facilities IO involving them.
Definition VarNames.h:40
unsigned int Exponent
Definition stdinc.h:89
VarNames _names
Definition VarSorter.h:43
vector< mpz_class > _bigTmpTerm
Definition VarSorter.h:44
vector< size_t > _permutation
Definition VarSorter.h:42
void getOrderedNames(VarNames &names)
Definition VarSorter.cpp:50
void permute(vector< mpz_class > &term)
Definition VarSorter.cpp:56
Term _tmpTerm
Definition VarSorter.h:45