DMat() [3/3]

template<typename ACoeffRing>

DMat< ACoeffRing >::DMat ( const DMat< ACoeffRing > & M )

inline

Definition at line 97 of file dmat.hpp.

      : mRing(&M.ring()),
        mNumRows(M.numRows()),
        mNumColumns(M.numColumns())
  {
    size_t len = mNumRows * mNumColumns;
    if (len == 0)
      mArray = nullptr;
    else
      {
        mArray = newarray(ElementType,len);
        for (size_t i = 0; i < len; i++)
          {
            ring().init(mArray[i]);
            ring().set_zero(mArray[i]);
          }
        ElementType* next = mArray;
        for (size_t r=0; r < mNumRows; ++r)
          {
            mRowPointers.push_back(next);
            next += mNumColumns;
          }
        for (size_t r = 0; r < mNumRows; ++r)
          for (size_t c = 0; c < mNumColumns; ++c)
            ring().init_set(entry(r,c), M.entry(r,c));
      }
  }