sc::scmatrixltrisubblock(3)

NAME

sc::SCMatrixLTriSubBlock - 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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