home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Usenet 1994 October
/
usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso
/
misc
/
volume34
/
newmat06
/
part06
/
submat.cxx
< prev
next >
Wrap
C/C++ Source or Header
|
1992-12-06
|
7KB
|
230 lines
//$$ submat.cxx submatrices
// Copyright (C) 1991,2: R B Davies
#include "include.h"
#include "newmat.h"
#include "newmatrc.h"
//#define REPORT { static ExeCounter ExeCount(__LINE__,6); ExeCount++; }
#define REPORT {}
/****************************** submatrices *********************************/
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::SubMatrix(int first_row, int last_row, int first_col,
int last_col) const
#else
GetSubMatrix BaseMatrix::SubMatrix(int first_row, int last_row, int first_col,
int last_col) const
#endif
{
REPORT
Tracer tr("SubMatrix");
int a = first_row - 1; int b = last_row - first_row + 1;
int c = first_col - 1; int d = last_col - first_col + 1;
if (a<0 || b<=0 || c<0 || d<=0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, a, b, c, d, Type().sub());
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix(this, a, b, c, d, Type().sub());
#endif
}
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::SymSubMatrix(int first_row, int last_row) const
#else
GetSubMatrix BaseMatrix::SymSubMatrix(int first_row, int last_row) const
#endif
{
REPORT
Tracer tr("SubMatrix(symmetric)");
int a = first_row - 1; int b = last_row - first_row + 1;
if (a<0 || b<=0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, a, b, a, b, Type().ssub());
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix( this, a, b, a, b, Type().ssub());
#endif
}
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::Row(int first_row) const
#else
GetSubMatrix BaseMatrix::Row(int first_row) const
#endif
{
REPORT
Tracer tr("SubMatrix(row)");
int a = first_row - 1;
if (a<0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, a, 1, 0, -1, MatrixType::RV);
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix(this, a, 1, 0, -1, MatrixType::RV);
#endif
}
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::Rows(int first_row, int last_row) const
#else
GetSubMatrix BaseMatrix::Rows(int first_row, int last_row) const
#endif
{
REPORT
Tracer tr("SubMatrix(rows)");
int a = first_row - 1; int b = last_row - first_row + 1;
if (a<0 || b<=0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, a, b, 0, -1, MatrixType::RV);
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix(this, a, b, 0, -1, MatrixType::RV);
#endif
}
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::Column(int first_col) const
#else
GetSubMatrix BaseMatrix::Column(int first_col) const
#endif
{
REPORT
Tracer tr("SubMatrix(column)");
int c = first_col - 1;
if (c<0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, 0, -1, c, 1, MatrixType::CV);
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix(this, 0, -1, c, 1, MatrixType::CV);
#endif
}
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix& BaseMatrix::Columns(int first_col, int last_col) const
#else
GetSubMatrix BaseMatrix::Columns(int first_col, int last_col) const
#endif
{
REPORT
Tracer tr("SubMatrix(columns)");
int c = first_col - 1; int d = last_col - first_col + 1;
if (c<0 || d<=0) Throw(SubMatrixDimensionException());
#ifdef TEMPS_DESTROYED_QUICKLY
GetSubMatrix* x = new GetSubMatrix(this, 0, -1, c, d, MatrixType::CV);
MatrixErrorNoSpace(x);
return *x;
#else
return GetSubMatrix(this, 0, -1, c, d, MatrixType::CV);
#endif
}
void GetSubMatrix::SetUpLHS()
{
REPORT
Tracer tr("SubMatrix(LHS)");
const BaseMatrix* bm1 = bm;
GeneralMatrix* gm = ((BaseMatrix*&)bm)->Evaluate();
if ((BaseMatrix*)gm!=bm1)
Throw(ProgramException("Invalid LHS"));
if (row_number < 0) row_number = gm->Nrows();
if (col_number < 0) col_number = gm->Ncols();
if (row_skip+row_number > gm->Nrows() || col_skip+col_number > gm->Ncols())
Throw(SubMatrixDimensionException());
}
void GetSubMatrix::operator<<(const BaseMatrix& bmx)
{
REPORT
Tracer tr("SubMatrix(<<)");
SetUpLHS(); GeneralMatrix* gmx = ((BaseMatrix&)bmx).Evaluate();
if (row_number != gmx->Nrows() || col_number != gmx->Ncols())
Throw(IncompatibleDimensionsException());
MatrixRow mrx(gmx, LoadOnEntry);
MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
// do need LoadOnEntry
MatrixRowCol sub; int i = row_number;
while (i--)
{
mr.SubRowCol(sub, col_skip, col_number); // put values in sub
sub.Copy(mrx); mr.Next(); mrx.Next();
}
gmx->tDelete();
#ifdef TEMPS_DESTROYED_QUICKLY
delete this;
#endif
}
void GetSubMatrix::operator<<(const Real* r)
{
REPORT
Tracer tr("SubMatrix(<<Real*)");
SetUpLHS();
if (row_skip+row_number > gm->Nrows() || col_skip+col_number > gm->Ncols())
Throw(SubMatrixDimensionException());
MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
// do need LoadOnEntry
MatrixRowCol sub; int i = row_number;
while (i--)
{
mr.SubRowCol(sub, col_skip, col_number); // put values in sub
sub.Copy(r); mr.Next();
}
#ifdef TEMPS_DESTROYED_QUICKLY
delete this;
#endif
}
void GetSubMatrix::operator<<(Real r)
{
REPORT
Tracer tr("SubMatrix(<<Real)");
SetUpLHS();
MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
// do need LoadOnEntry
MatrixRowCol sub; int i = row_number;
while (i--)
{
mr.SubRowCol(sub, col_skip, col_number); // put values in sub
sub.Copy(r); mr.Next();
}
#ifdef TEMPS_DESTROYED_QUICKLY
delete this;
#endif
}
void GetSubMatrix::Inject(const GeneralMatrix& gmx)
{
REPORT
Tracer tr("SubMatrix(inject)");
SetUpLHS();
if (row_number != gmx.Nrows() || col_number != gmx.Ncols())
Throw(IncompatibleDimensionsException());
MatrixRow mrx((GeneralMatrix*)(&gmx), LoadOnEntry);
MatrixRow mr(gm, LoadOnEntry+StoreOnExit+DirectPart, row_skip);
// do need LoadOnEntry
MatrixRowCol sub; int i = row_number;
while (i--)
{
mr.SubRowCol(sub, col_skip, col_number); // put values in sub
sub.Inject(mrx); mr.Next(); mrx.Next();
}
#ifdef TEMPS_DESTROYED_QUICKLY
delete this;
#endif
}