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lammps/lib/poems/vect4.cpp
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vect4.cpp
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/*
*_________________________________________________________________________*
* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
* DESCRIPTION: SEE READ-ME *
* FILE NAME: vect4.cpp *
* AUTHORS: See Author List *
* GRANTS: See Grants List *
* COPYRIGHT: (C) 2005 by Authors as listed in Author's List *
* LICENSE: Please see License Agreement *
* DOWNLOAD: Free at www.rpi.edu/~anderk5 *
* ADMINISTRATOR: Prof. Kurt Anderson *
* Computational Dynamics Lab *
* Rensselaer Polytechnic Institute *
* 110 8th St. Troy NY 12180 *
* CONTACT: anderk5@rpi.edu *
*_________________________________________________________________________*/
#include "vect4.h"
#include <cstdlib>
using namespace std;
Vect4::Vect4(){
numrows = 4; numcols = 1;
}
Vect4::~Vect4(){
}
Vect4::Vect4(const Vect4& A){ // copy constructor
numrows = 4; numcols = 1;
elements[0] = A.elements[0];
elements[1] = A.elements[1];
elements[2] = A.elements[2];
elements[3] = A.elements[3];
}
Vect4::Vect4(const VirtualMatrix& A){ // copy constructor
numrows = 4; numcols = 1;
// error check
if( (A.GetNumRows() != 4) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<4;i++)
elements[i] = A.BasicGet(i,0);
}
double& Vect4::operator_1int (int i){ // array access
return elements[i-1];
}
double Vect4::Get_1int(int i) const{
return elements[i-1];
}
void Vect4::Set_1int(int i, double value){
elements[i-1] = value;
}
double Vect4::BasicGet_1int(int i) const{
return elements[i];
}
void Vect4::BasicSet_1int(int i, double value){
elements[i] = value;
}
void Vect4::BasicIncrement_1int(int i, double value){
elements[i] += value;
}
void Vect4::Const(double value){
elements[0] = value;
elements[1] = value;
elements[2] = value;
elements[3] = value;
}
MatrixType Vect4::GetType() const{
return VECT4;
}
istream& Vect4::ReadData(istream& c){ //input
for(int i=0;i<4;i++)
c >> elements[i];
return c;
}
ostream& Vect4::WriteData(ostream& c) const{ //output
for(int i=0;i<4;i++)
c << elements[i] << ' ';
return c;
}
void Vect4::AssignVM(const VirtualMatrix& A){
// error check
if( (A.GetNumRows() != 4) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<numrows;i++)
elements[i] = A.BasicGet(i,0);
}
Vect4& Vect4::operator=(const Vect4& A){ // assignment operator
elements[0] = A.elements[0];
elements[1] = A.elements[1];
elements[2] = A.elements[2];
elements[3] = A.elements[3];
return *this;
}
Vect4& Vect4::operator=(const VirtualMatrix& A){ // overloaded =
// error check
if( (A.GetNumRows() != 4) || (A.GetNumCols() != 1) ){
cerr << "illegal matrix size" << endl;
exit(0);
}
for(int i=0;i<numrows;i++)
elements[i] = A.BasicGet(i,0);
return *this;
}
Vect4& Vect4::operator*=(double b){
elements[0] *= b;
elements[1] *= b;
elements[2] *= b;
elements[3] *= b;
return *this;
}
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