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#include <cusp/csr_matrix.h>
#include <cusp/print.h>
int main(void)
{
// allocate storage for (4,3) matrix with 6 nonzeros
cusp::csr_matrix<int,float,cusp::host_memory> A(4,3,6);
// initialize matrix entries on host
A.row_offsets[0] = 0; // first offset is always zero
A.row_offsets[1] = 2;
A.row_offsets[2] = 2;
A.row_offsets[3] = 3;
A.row_offsets[4] = 6; // last offset is always num_entries
A.column_indices[0] = 0; A.values[0] = 10;
A.column_indices[1] = 2; A.values[1] = 20;
A.column_indices[2] = 2; A.values[2] = 30;
A.column_indices[3] = 0; A.values[3] = 40;
A.column_indices[4] = 1; A.values[4] = 50;
A.column_indices[5] = 2; A.values[5] = 60;
// A now represents the following matrix
// [10 0 20]
// [ 0 0 0]
// [ 0 0 30]
// [40 50 60]
// print matrix entries
cusp::print(A);
return 0;
}
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