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////////////////////////////////////////////////////////////////////////////////
//
// RealChiro.hh
//
// produced: 13/03/98 jr
// last change: 13/03/98 jr
//
////////////////////////////////////////////////////////////////////////////////
#ifndef REALCHIRO_HH
#define REALCHIRO_HH
#include <assert.h>
#include <iostream>
#include "Global.hh"
#ifdef USE_SPARSEINTSET
#include "SparseIntegerSet.hh"
#else
#include "LabelSet.hh"
#endif
#include "CommandlineOptions.hh"
#include "StairCaseMatrix.hh"
#include "PointConfiguration.hh"
#include "Permutation.hh"
namespace topcom {
#ifdef USE_SPARSEINTSET
typedef SparseIntegerSet basis_type;
#else
typedef LabelSet basis_type;
#endif
#ifdef STL_CHIROTOPE
#include <unordered_map>
typedef std::unordered_map<basis_type, std::pair<short int, Field>, Hash<basis_type> > chirotope_data;
#else
#include "HashMap.hh"
typedef HashMap<basis_type, Pair<short int, Field> > chirotope_data;
#endif
inline const char int2sign(const short int i) {
switch(i) {
case 1: return '+';
case -1: return '-';
default: return '0';
}
}
inline const short int sign2int(const char c) {
switch(c) {
case '+': return 1;
case '-': return -1;
default: return 0;
}
}
class RealChiro : public chirotope_data {
private:
static const char start_char;
static const char end_char;
static const char delim_char;
static const char* map_chars;
private:
parameter_type _no;
parameter_type _rank;
protected:
bool _has_dets;
public:
// constructors:
inline RealChiro();
inline RealChiro(const RealChiro&);
inline RealChiro(const parameter_type&, const parameter_type&, const bool = false);
RealChiro(const PointConfiguration&, bool preprocess=true);
// destructor:
inline ~RealChiro();
//assignment:
inline RealChiro& operator=(const RealChiro& chiro);
// accessors:
inline parameter_type no() const;
inline parameter_type rank() const;
inline bool has_dets() const;
inline size_type size() const;
inline Field det(const basis_type&) const;
inline Field det(const Permutation&) const;
// functions:
void erase_random();
const basis_type find_non_deg_basis() const;
RealChiro dual() const;
// operators:
inline const int operator()(const basis_type&) const;
const int operator()(const basis_type& prebasis,
const Permutation& lex_extension_perm) const;
inline const bool operator==(const RealChiro&) const;
inline const bool operator!=(const RealChiro&) const;
// stream output/input:
std::istream& read(std::istream&);
std::istream& read_string(std::istream&);
std::ostream& write(std::ostream&) const;
std::ostream& print_string(std::ostream&) const;
std::ostream& print_dualstring(std::ostream&) const;
inline friend std::ostream& operator<<(std::ostream&, const RealChiro& chiro);
inline friend std::istream& operator>>(std::istream&, RealChiro& chiro);
private:
// internal algorithms:
void _recursive_chiro(const StairCaseMatrix& current,
const PointConfiguration& points,
const basis_type& basis,
const parameter_type start,
const parameter_type step,
const bool already_dependent);
void _recursive_find_nd_basis(const StairCaseMatrix& current,
const PointConfiguration& points,
const basis_type& basis,
const parameter_type start,
const parameter_type step,
const bool already_dependent);
};
inline RealChiro::RealChiro() : chirotope_data(), _no(0), _rank(0), _has_dets(false) {
}
inline RealChiro::RealChiro(const RealChiro& chiro) :
chirotope_data(chiro), _no(chiro._no), _rank(chiro._rank), _has_dets(false) {
}
inline RealChiro::RealChiro(const parameter_type& no,
const parameter_type& rank,
const bool has_dets) :
chirotope_data(), _no(no), _rank(rank), _has_dets(has_dets) {}
// destructor:
inline RealChiro::~RealChiro() {
#ifdef CONSTRUCTOR_DEBUG
std::cerr << "RealChiro::~RealChiro(): destructor called" << std::endl;
#endif
}
//assignment:
inline RealChiro& RealChiro::operator=(const RealChiro& chiro) {
if (this == &chiro) {
return *this;
}
chirotope_data::operator=(chiro);
_no = chiro._no;
_rank = chiro._rank;
_has_dets = chiro._has_dets;
return *this;
}
// accessors:
inline parameter_type RealChiro::no() const { return _no; }
inline parameter_type RealChiro::rank() const { return _rank; }
inline bool RealChiro::has_dets() const { return _has_dets; }
inline size_type RealChiro::size() const {
#ifdef STL_CHIROTOPE
return static_cast<size_type>(chirotope_data::size());
#else
return static_cast<size_type>(chirotope_data::size());
#endif
}
inline Field RealChiro::det(const basis_type& basis) const {
if (!_has_dets) {
std::cerr << "Field RealChiro::det(const basis_type&) const: "
<< "det requested, but chirotope has no dets - exiting" << std::endl;
exit(1);
}
return find(basis)->second.second;
}
inline Field RealChiro::det(const Permutation& basisperm) const {
int permsign = basisperm.sign();
if (permsign > 0) {
return det(basis_type(basisperm));
}
else {
return -det(basis_type(basisperm));
}
}
// operators:
inline const int RealChiro::operator()(const basis_type& basis) const {
#ifdef INDEX_CHECK
std::cerr << "basis: " << basis << std::endl;
if (!(member(basis))) {
std::cerr << *this << " does not contain " << basis << std::endl;
exit(1);
}
#endif
#ifndef STL_CHIROTOPE
return member(basis)->first;
#else
return find(basis)->second.first;
#endif
}
inline const bool RealChiro::operator==(const RealChiro& chiro) const {
#ifdef STL_CHIROTOPE
return ((*this) == chiro);
#else
return chirotope_data::operator==(chiro);
#endif
}
inline const bool RealChiro::operator!=(const RealChiro& chiro) const {
return !operator==(chiro);
}
// stream output/input:
inline std::istream& operator>>(std::istream& ist, RealChiro& chiro) {
return chiro.read(ist);
}
inline std::ostream& operator<<(std::ostream& ost, const RealChiro& chiro) {
return chiro.write(ost);
}
}; // namespace topcom
#endif
// eof RealChiro.hh
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