Function sprs::io::read_matrix_market

pub fn read_matrix_market<N, I, P>(mm_file: P) -> Result<TriMatI<N, I>, IoError> where
    I: SpIndex,
    N: NumCast + Clone,
    P: AsRef<Path>, 

Read a sparse matrix file in the Matrix Market format and return a corresponding triplet matrix.

Presently, only general matrices are supported, but symmetric and hermitian matrices should be supported in the future.