pub fn cell(&self) -> Result<CellIndex, BvError> {
        self.cell_.ok_or_else(|| {
            BvError::ValueError("Edge didn't have any valid cell associated to it.".to_string())
        })
    }
/// Returns the cell index of this edge, or a BvError
Returns the cell index of this edge, or a BvError
Returns the cell index of this edge or a BvError
pub fn cell(&self) -> Result<CellIndex, BvError> {
        self.cell_.ok_or_else(|| {
            BvError::ValueError("Edge didn't have any valid cell associated to it.".to_string())
        })
    }
pub fn cell ( & self ) -> Result < CellIndex , BvError > { self . cell_ . ok_or_else ( | | { BvError :: ValueError ( " " . to_string ( ) ) } ) }
Returns the cell index of this edge, or a BvError
Returns the cell index of this edge or a BvError
&self