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/* $Header: /var/lib/cvs/dynare_cpp/sylv/cc/Vector.h,v 1.1.1.1 2004/06/04 13:01:13 kamenik Exp $ */
/* Tag $Name: $ */
#ifndef VECTOR_H
#define VECTOR_H
/* NOTE! Vector and ConstVector have not common super class in order
* to avoid running virtual method invokation mechanism. Some
* members, and methods are thus duplicated */
#include <cstdio>
class GeneralMatrix;
class ConstVector;
class Vector {
protected:
int len;
int s;
double* data;
bool destroy;
public:
Vector() : len(0), s(1), data(0), destroy(false) {}
Vector(int l) : len(l), s(1), data(new double[l]), destroy(true) {}
Vector(Vector& v) : len(v.length()), s(v.skip()), data(v.base()), destroy(false) {}
Vector(const Vector& v);
Vector(const ConstVector& v);
Vector(const double* d, int l)
: len(l), s(1), data(new double[len]), destroy(true)
{copy(d, 1);}
Vector(double* d, int l)
: len(l), s(1), data(d), destroy(false) {}
Vector(double* d, int skip, int l)
: len(l), s(skip), data(d), destroy(false) {}
Vector(Vector& v, int off, int l);
Vector(const Vector& v, int off, int l);
Vector(GeneralMatrix& m, int col);
Vector(int row, GeneralMatrix& m);
const Vector& operator=(const Vector& v);
const Vector& operator=(const ConstVector& v);
double& operator[](int i)
{return data[s*i];}
const double& operator[](int i) const
{return data[s*i];}
const double* base() const
{return data;}
double* base()
{return data;}
int length() const
{return len;}
int skip() const
{return s;}
/** Exact equality. */
bool operator==(const Vector& y) const;
bool operator!=(const Vector& y) const;
/** Lexicographic ordering. */
bool operator<(const Vector& y) const;
bool operator<=(const Vector& y) const;
bool operator>(const Vector& y) const;
bool operator>=(const Vector& y) const;
virtual ~Vector();
void zeros();
void nans();
void infs();
bool toBeDestroyed() const {return destroy;}
void rotatePair(double alpha, double beta1, double beta2, int i);
void add(double r, const Vector& v);
void add(double r, const ConstVector& v);
void add(const double* z, const Vector& v);
void add(const double* z, const ConstVector& v);
void mult(double r);
double getNorm() const;
double getMax() const;
double getNorm1() const;
double dot(const Vector& y) const;
bool isFinite() const;
void print() const;
/* multiplies | alpha -beta1| |b1| |x1|
| |\otimes I .| | = | |
| -beta2 alpha| |b2| |x2|
*/
static void mult2(double alpha, double beta1, double beta2,
Vector& x1, Vector& x2,
const Vector& b1, const Vector& b2);
/* same, but adds instead of set */
static void mult2a(double alpha, double beta1, double beta2,
Vector& x1, Vector& x2,
const Vector& b1, const Vector& b2);
/* same, but subtracts instead of add */
static void mult2s(double alpha, double beta1, double beta2,
Vector& x1, Vector& x2,
const Vector& b1, const Vector& b2)
{mult2a(-alpha, -beta1, -beta2, x1, x2, b1, b2);}
private:
void copy(const double* d, int inc);
const Vector& operator=(int); // must not be used (not implemented)
const Vector& operator=(double); // must not be used (not implemented)
};
class BaseConstVector {
protected:
int len;
int s;
const double* data;
public:
BaseConstVector(int l, int si, const double* d) : len(l), s(si), data(d) {}
BaseConstVector(const BaseConstVector& v) : len(v.len), s(v.s), data(v.data) {}
const BaseConstVector& operator=(const BaseConstVector& v)
{len = v.len; s = v.s; data = v.data; return *this;}
const double& operator[](int i) const
{return data[s*i];}
const double* base() const
{return data;}
int length() const
{return len;}
int skip() const
{return s;}
};
class ConstGeneralMatrix;
class ConstVector : public BaseConstVector {
public:
ConstVector(const Vector& v) : BaseConstVector(v.length(), v.skip(), v.base()) {}
ConstVector(const ConstVector& v) : BaseConstVector(v) {}
ConstVector(const double* d, int l) : BaseConstVector(l, 1, d) {}
ConstVector(const Vector& v, int off, int l);
ConstVector(const ConstVector& v, int off, int l);
ConstVector(const double* d, int skip, int l);
ConstVector(const ConstGeneralMatrix& m, int col);
ConstVector(int row, const ConstGeneralMatrix& m);
virtual ~ConstVector() {}
/** Exact equality. */
bool operator==(const ConstVector& y) const;
bool operator!=(const ConstVector& y) const
{return ! operator==(y);}
/** Lexicographic ordering. */
bool operator<(const ConstVector& y) const;
bool operator<=(const ConstVector& y) const
{return operator<(y) || operator==(y);}
bool operator>(const ConstVector& y) const
{return ! operator<=(y);}
bool operator>=(const ConstVector& y) const
{return ! operator<(y);}
double getNorm() const;
double getMax() const;
double getNorm1() const;
double dot(const ConstVector& y) const;
bool isFinite() const;
void print() const;
};
class ZeroPad {
public:
static const int length = 16;
private:
double pad[16];
public:
ZeroPad();
const double* getBase() const {return pad;}
};
#endif /* VECTOR_H */
// Local Variables:
// mode:C++
// End:
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