Thread: move semantics / rvalue references

just now looking into this. not sure if i'm doign it wrong. a sanity check would be much appreciated.

Code:

Matrix&& Matrix::operator +(const Matrix& b)const
{
    Matrix result(*this);
    result+=b;
    return (Matrix&&)result;
}

Matrix::Matrix(Matrix&& rhs):
   data(rhs.data),
   rows(rhs.rows),
   cols(rhs.cols)
{
}

void foo()
{
   Matrix a;
   Matrix b;
   Matrix aPlusB(a+b);
}

edit: ok it seems like i am definitely missing the point. this is the usage case i'd like to accomodate: using arithmetic operators on matrix operations without any extraneous copies. if someone can assist in disabusing me of my ignorance that would be fantastic.

thanks.