Function blas::fortran::dgbmv

pub fn dgbmv(trans: u8,
             m: i32,
             n: i32,
             kl: i32,
             ku: i32,
             alpha: f64,
             a: &[f64],
             lda: i32,
             x: &[f64],
             incx: i32,
             beta: f64,
             y: &mut [f64],
             incy: i32)