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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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