makeMutableMatrix()

template<class RingType>

virtual MutableMatrix * M2::ConcreteRing< RingType >::makeMutableMatrix ( size_t nrows, size_t ncols, bool dense ) const

inlinevirtual

Create either a dense or sparse MutableMatrix of the given size.

Reimplemented from Ring.

Definition at line 86 of file aring-glue.hpp.

  {
    // JY: The use of get here on R is safe because MutableMat will always keep
    // a reference to this so long as it has a reference to R, and this is in
    // the gc heap, so that reference keeps R alive. Really, the MutableMat
    // constructor should probably be calling ring(), but ring() is not virtual
    // and not every Ring is an instance of ConcreteRing.
    if (dense)
      return new MutableMat<DMat<RingType> >(this, R.get(), nrows, ncols);
    else
      return new MutableMat<SMat<RingType> >(this, R.get(), nrows, ncols);
  }