intvec.h File Reference

#include <string.h>
#include <omalloc/omalloc.h>
#include <reporter/reporter.h>

Go to the source code of this file.

Data Structures
class	intvec

Macros
#define	IMATELEM(M, I, J)   (M)[(I-1)*(M).cols()+J-1]
#define	ivTest(v)   do {} while (0)

Functions
intvec *	ivCopy (const intvec *o)
intvec *	ivAdd (intvec *a, intvec *b)
intvec *	ivSub (intvec *a, intvec *b)
intvec *	ivTranp (intvec *o)
int	ivTrace (intvec *o)
intvec *	ivMult (intvec *a, intvec *b)
void	ivTriangIntern (intvec *imat, int &ready, int &all)
intvec *	ivSolveKern (intvec *imat, int ready)
intvec *	ivConcat (intvec *a, intvec *b)

Macro Definition Documentation

#define IMATELEM	(		M,
			I,
			J
	)		(M)[(I-1)*(M).cols()+J-1]

Definition at line 76 of file intvec.h.

#define ivTest

(

v

)

do {} while (0)

Definition at line 156 of file intvec.h.

Function Documentation

intvec* ivAdd	(	intvec *	a,
		intvec *	b
	)

Definition at line 262 of file intvec.cc.

{
  intvec * iv;
  int mn, ma, i;
  if (a->cols() != b->cols()) return NULL;
  mn = si_min(a->rows(),b->rows());
  ma = si_max(a->rows(),b->rows());
  if (a->cols() == 1)
  {
    iv = new intvec(ma);
    for (i=0; i<mn; i++) (*iv)[i] = (*a)[i] + (*b)[i];
    if (ma > mn)
    {
      if (ma == a->rows())
      {
        for(i=mn; i<ma; i++) (*iv)[i] = (*a)[i];
      }
      else
      {
        for(i=mn; i<ma; i++) (*iv)[i] = (*b)[i];
      }
    }
    return iv;
  }
  if (mn != ma) return NULL;
  iv = new intvec(a);
  for (i=0; i<mn*a->cols(); i++) { (*iv)[i] += (*b)[i]; }
  return iv;
}

intvec* ivConcat	(	intvec *	a,
		intvec *	b
	)

Definition at line 817 of file intvec.cc.

{
  int ac=a->cols();
  int c = ac + b->cols(); int r = si_max(a->rows(),b->rows());
  intvec * ab = new intvec(r,c,0);

  int i,j;
  for (i=1; i<=a->rows(); i++)
  {
    for(j=1; j<=ac; j++)
      IMATELEM(*ab,i,j) = IMATELEM(*a,i,j);
  }
  for (i=1; i<=b->rows(); i++)
  {
    for(j=1; j<=b->cols(); j++)
      IMATELEM(*ab,i,j+ac) = IMATELEM(*b,i,j);
  }
  return ab;
}

intvec* ivCopy ( const intvec *  o )

inline

Definition at line 132 of file intvec.h.

{
  if( o != NULL )
    return new intvec(o);

  return NULL;
}

intvec* ivMult	(	intvec *	a,
		intvec *	b
	)

Definition at line 344 of file intvec.cc.

{
  int i, j, k, sum,
      ra = a->rows(), ca = a->cols(),
      rb = b->rows(), cb = b->cols();
  intvec * iv;
  if (ca != rb) return NULL;
  iv = new intvec(ra, cb, 0);
  for (i=0; i<ra; i++)
  {
    for (j=0; j<cb; j++)
    {
      sum = 0;
      for (k=0; k<ca; k++)
        sum += (*a)[i*ca+k]*(*b)[k*cb+j];
      (*iv)[i*cb+j] = sum;
    }
  }
  return iv;
}

intvec* ivSolveKern	(	intvec *	imat,
		int	ready
	)

Definition at line 437 of file intvec.cc.

{
  int d=imat->cols();
  int kdim=d-dimtr;
  intvec *perm = new intvec(dimtr+1);
  intvec *kern = new intvec(kdim,d,0);
  intvec *res;
  int c, cp, r, t;

  t = kdim;
  c = 1;
  for (r=1;r<=dimtr;r++)
  {
    while (IMATELEM(*imat,r,c)==0) c++;
    (*perm)[r] = c;
    c++;
  }
  c = d;
  for (r=dimtr;r>0;r--)
  {
    cp = (*perm)[r];
    if (cp!=c)
    {
      ivKernFromRow(kern, imat, perm, t, r, c);
      t -= (c-cp);
      if (t==0)
        break;
      c = cp-1;
    }
    else
      c--;
  }
  if (kdim>1)
    res = ivOptimizeKern(kern);
  else
    res = ivTranp(kern);
  delete kern;
  delete perm;
  return res;
}

intvec* ivSub	(	intvec *	a,
		intvec *	b
	)

Definition at line 292 of file intvec.cc.

{
  intvec * iv;
  int mn, ma, i;
  if (a->cols() != b->cols()) return NULL;
  mn = si_min(a->rows(),b->rows());
  ma = si_max(a->rows(),b->rows());
  if (a->cols() == 1)
  {
    iv = new intvec(ma);
    for (i=0; i<mn; i++) (*iv)[i] = (*a)[i] - (*b)[i];
    if (ma > mn)
    {
      if (ma == a->rows())
      {
        for(i=mn; i<ma; i++) (*iv)[i] = (*a)[i];
      }
      else
      {
        for(i=mn; i<ma; i++) (*iv)[i] = -(*b)[i];
      }
    }
    return iv;
  }
  if (mn != ma) return NULL;
  iv = new intvec(a);
  for (i=0; i<mn*a->cols(); i++) { (*iv)[i] -= (*b)[i]; }
  return iv;
}

int ivTrace

(

intvec *

o

)

Definition at line 334 of file intvec.cc.

{
  int i, s = 0, m = si_min(o->rows(),o->cols()), c = o->cols();
  for (i=0; i<m; i++)
  {
    s += (*o)[i*c+i];
  }
  return s;
}

intvec* ivTranp

(

intvec *

o

)

Definition at line 322 of file intvec.cc.

{
  int i, j, r = o->rows(), c = o->cols();
  intvec * iv= new intvec(c, r, 0);
  for (i=0; i<r; i++)
  {
    for (j=0; j<c; j++)
      (*iv)[j*r+i] = (*o)[i*c+j];
  }
  return iv;
}

void ivTriangIntern	(	intvec *	imat,
		int &	ready,
		int &	all
	)

Definition at line 399 of file intvec.cc.

{
  int rpiv, colpos=0, rowpos=0;
  int ia=ready, ie=all;

  do
  {
    rowpos++;
    do
    {
      colpos++;
      rpiv = ivColPivot(imat, colpos, rowpos, ia, ie);
    } while (rpiv==0);
    if (rpiv>ia)
    {
      if (rowpos!=rpiv)
      {
        ivSaveRow(imat, rpiv);
        ivFreeRow(imat, rowpos, rpiv);
        ivSetRow(imat, rowpos, colpos);
        rpiv = rowpos;
      }
      ia++;
      if (ia==imat->cols())
      {
        ready = ia;
        all = ie;
        return;
      }
    }
    ivReduce(imat, rpiv, colpos, ia, ie);
    ivZeroElim(imat, colpos, ia, ie);
  } while (ie>ia);
  ready = ia;
  all = ie;
}