submatrix() [2/2]

template<typename Mat>

virtual MutableMatrix * MutableMat< Mat >::submatrix ( M2_arrayint rows, M2_arrayint cols ) const

inlinevirtual

Implements MutableMatrix.

Definition at line 584 of file mutablemat-defs.hpp.

  {
    for (size_t r = 0; r < rows->len; r++)
      if (rows->array[r] < 0 || rows->array[r] >= n_rows())
        {
          ERROR(
              "row index %d out of bounds 0..%d", rows->array[r], n_rows() - 1);
          return 0;
        }
    for (size_t c = 0; c < cols->len; c++)
      if (cols->array[c] < 0 || cols->array[c] >= n_cols())
        {
          ERROR("column index %d out of bounds 0..%d",
                cols->array[c],
                n_cols() - 1);
          return 0;
        }
    MutableMat* result = makeZeroMatrix(rows->len, cols->len);
    MatOps::setFromSubmatrix(getMat(), rows, cols, result->getMat());
    return result;
  }

References ERROR, getMat(), makeZeroMatrix(), MutableMat(), MutableMatrix::MutableMatrix(), n_cols(), n_rows(), and result().