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PsL Monthly 1993 December
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PSL Monthly Shareware CD-ROM (December 1993).iso
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newmat.exe
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NEWMAT2.CXX
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C/C++ Source or Header
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1991-07-30
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11KB
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343 lines
//$$ newmat2.cxx Matrix row and column operations
// Copyright (C) 1991: R B Davies and DSIR
#include "include.hxx"
#include "boolean.hxx"
typedef double real; // all floating point double
#include "newmat.hxx"
#include "newmatrc.hxx"
//#define REPORT { static ExeCounter ExeCount(__LINE__,2); ExeCount++; }
#define REPORT {}
//#define MONITOR(what,storage,store) \
// { cout << what << " " << storage << " at " << (long)store << "\n"; }
#define MONITOR(what,store,storage) {}
/************************** Matrix Row/Col functions ************************/
void MatrixRowCol::Add(const MatrixRowCol& mrc)
{
REPORT
int f = mrc.skip; int l = f + mrc.storage; int lx = skip + storage;
if (f < skip) f = skip; if (l > lx) l = lx; l -= f;
if (l<=0) return;
real* elx=store+f; real* el=mrc.store+f;
while (l--) *elx++ += *el++;
}
void MatrixRowCol::AddScaled(const MatrixRowCol& mrc, real x)
{
REPORT
int f = mrc.skip; int l = f + mrc.storage; int lx = skip + storage;
if (f < skip) f = skip; if (l > lx) l = lx; l -= f;
if (l<=0) return;
real* elx=store+f; real* el=mrc.store+f;
while (l--) *elx++ += *el++ * x;
}
void MatrixRowCol::Sub(const MatrixRowCol& mrc)
{
REPORT
int f = mrc.skip; int l = f + mrc.storage; int lx = skip + storage;
if (f < skip) f = skip; if (l > lx) l = lx; l -= f;
if (l<=0) return;
real* elx=store+f; real* el=mrc.store+f;
while (l--) *elx++ -= *el++;
}
void MatrixRowCol::Inject(const MatrixRowCol& mrc)
// copy stored elements only
{
REPORT
int f = mrc.skip; int l = f + mrc.storage; int lx = skip + storage;
if (f < skip) f = skip; if (l > lx) l = lx; l -= f;
if (l<=0) return;
real* elx = store+f; real* ely = mrc.store+f;
while (l--) *elx++ = *ely++;
}
real DotProd(const MatrixRowCol& mrc1, const MatrixRowCol& mrc2)
{
REPORT // not accessed
int f = mrc1.skip; int f2 = mrc2.skip;
int l = f + mrc1.storage; int l2 = f2 + mrc2.storage;
if (f < f2) f = f2; if (l > l2) l = l2; l -= f;
if (l<=0) return 0.0;
real* el1=mrc1.store+f; real* el2=mrc2.store+f;
real sum = 0.0;
while (l--) sum += *el1++ * *el2++;
return sum;
}
void MatrixRowCol::Add(const MatrixRowCol& mrc1, const MatrixRowCol& mrc2)
{
int f = skip; int l = skip + storage;
int f1 = mrc1.skip; int l1 = f1 + mrc1.storage;
if (f1<f) f1=f; if (l1>l) l1=l;
int f2 = mrc2.skip; int l2 = f2 + mrc2.storage;
if (f2<f) f2=f; if (l2>l) l2=l;
real* el = store + f;
real* el1 = mrc1.store+f1; real* el2 = mrc2.store+f2;
if (f1<f2)
{
register int i = f1-f; while (i--) *el++ = 0.0;
if (l1<=f2) // disjoint
{
REPORT // not accessed
i = l1-f1; while (i--) *el++ = *el1++;
i = f2-l1; while (i--) *el++ = 0.0;
i = l2-f2; while (i--) *el++ = *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
else
{
i = f2-f1; while (i--) *el++ = *el1++;
if (l1<=l2)
{
REPORT
i = l1-f2; while (i--) *el++ = *el1++ + *el2++;
i = l2-l1; while (i--) *el++ = *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
else
{
REPORT
i = l2-f2; while (i--) *el++ = *el1++ + *el2++;
i = l1-l2; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
}
}
else
{
register int i = f2-f; while (i--) *el++ = 0.0;
if (l2<=f1) // disjoint
{
REPORT // not accessed
i = l2-f2; while (i--) *el++ = *el2++;
i = f1-l2; while (i--) *el++ = 0.0;
i = l1-f1; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
else
{
i = f1-f2; while (i--) *el++ = *el2++;
if (l2<=l1)
{
REPORT
i = l2-f1; while (i--) *el++ = *el1++ + *el2++;
i = l1-l2; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
else
{
REPORT
i = l1-f1; while (i--) *el++ = *el1++ + *el2++;
i = l2-l1; while (i--) *el++ = *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
}
}
}
void MatrixRowCol::Sub(const MatrixRowCol& mrc1, const MatrixRowCol& mrc2)
{
int f = skip; int l = skip + storage;
int f1 = mrc1.skip; int l1 = f1 + mrc1.storage;
if (f1<f) f1=f; if (l1>l) l1=l;
int f2 = mrc2.skip; int l2 = f2 + mrc2.storage;
if (f2<f) f2=f; if (l2>l) l2=l;
real* el = store + f;
real* el1 = mrc1.store+f1; real* el2 = mrc2.store+f2;
if (f1<f2)
{
register int i = f1-f; while (i--) *el++ = 0.0;
if (l1<=f2) // disjoint
{
REPORT // not accessed
i = l1-f1; while (i--) *el++ = *el1++;
i = f2-l1; while (i--) *el++ = 0.0;
i = l2-f2; while (i--) *el++ = - *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
else
{
i = f2-f1; while (i--) *el++ = *el1++;
if (l1<=l2)
{
REPORT
i = l1-f2; while (i--) *el++ = *el1++ - *el2++;
i = l2-l1; while (i--) *el++ = - *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
else
{
REPORT
i = l2-f2; while (i--) *el++ = *el1++ - *el2++;
i = l1-l2; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
}
}
else
{
register int i = f2-f; while (i--) *el++ = 0.0;
if (l2<=f1) // disjoint
{
REPORT // not accessed
i = l2-f2; while (i--) *el++ = - *el2++;
i = f1-l2; while (i--) *el++ = 0.0;
i = l1-f1; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
else
{
i = f1-f2; while (i--) *el++ = - *el2++;
if (l2<=l1)
{
REPORT
i = l2-f1; while (i--) *el++ = *el1++ - *el2++;
i = l1-l2; while (i--) *el++ = *el1++;
i = l-l1; while (i--) *el++ = 0.0;
}
else
{
REPORT
i = l1-f1; while (i--) *el++ = *el1++ - *el2++;
i = l2-l1; while (i--) *el++ = - *el2++;
i = l-l2; while (i--) *el++ = 0.0;
}
}
}
}
void MatrixRowCol::Add(const MatrixRowCol& mrc1, real x)
{
REPORT
int f = mrc1.skip; int l = f + mrc1.storage; int lx = skip + storage;
if (f < skip) { f = skip; if (l < f) l = f; }
if (l > lx) { l = lx; if (f > lx) f = lx; }
real* elx = store+skip; real* ely = mrc1.store+f;
int l1 = f-skip; while (l1--) *elx++ = x;
l1 = l-f; while (l1--) *elx++ = *ely++ + x;
lx -= l; while (lx--) *elx++ = x;
}
void MatrixRowCol::RevSub(const MatrixRowCol& mrc1)
{
REPORT
int f = mrc1.skip; int l = f + mrc1.storage; int lx = skip + storage;
if (f < skip) { f = skip; if (l < f) l = f; }
if (l > lx) { l = lx; if (f > lx) f = lx; }
real* elx = store+skip; real* ely = mrc1.store+f;
int l1 = f-skip; while (l1--) { *elx = - *elx; elx++; }
l1 = l-f; while (l1--) { *elx = *ely++ - *elx; elx++; }
lx -= l; while (lx--) { *elx = - *elx; elx++; }
}
void MatrixRowCol::Copy(const MatrixRowCol& mrc1)
{
REPORT
int f = mrc1.skip; int l = f + mrc1.storage; int lx = skip + storage;
if (f < skip) { f = skip; if (l < f) l = f; }
if (l > lx) { l = lx; if (f > lx) f = lx; }
real* elx = store+skip; real* ely = mrc1.store+f;
int l1 = f-skip; while (l1--) *elx++ = 0.0;
l1 = l-f; while (l1--) *elx++ = *ely++