sc::SCMatrixLTriSubBlock(3) The SCMatrixLTriSubBlock describes a triangular subblock of a matrix.

SYNOPSIS


#include <block.h>

Inherits sc::SCMatrixBlock.

Public Member Functions


SCMatrixLTriSubBlock (int is, int ie, int js, int je, double *data)

SCMatrixLTriSubBlock (StateIn &)

void save_data_state (StateOut &)
Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them.
void process (SCElementOp *)

void process (SCElementOp2 *, SCMatrixBlock *)

void process (SCElementOp3 *, SCMatrixBlock *, SCMatrixBlock *)

Public Attributes


int istart

int iend

int jstart

int jend

double * data

Detailed Description

The SCMatrixLTriSubBlock describes a triangular subblock of a matrix.

The following bit of code illustrates the data layout: fill(double **matrix, SCMatrixLTriSubBlock &b) { int offset=(b.istart*(b.istart+1)>>1) + b.jstart; for (int i=b.start; i<b.end; i++) { for (int j=b.start; j<=i && j<b.jend; j++,offset++) { matrix[i][j] = b.data[offset]; } if (j>i) offset += b.istart; else offset += i + b.jstart - b.jend; } }

Member Function Documentation

void sc::SCMatrixLTriSubBlock::save_data_state (StateOut &) [virtual]

Save the base classes (with save_data_state) and the members in the same order that the StateIn CTOR initializes them. This must be implemented by the derived class if the class has data.

Reimplemented from sc::SCMatrixBlock.

Author

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