rblas::matrix_vector::ll::cblas_s::cblas_sgbmv

pub unsafe extern fn cblas_sgbmv(order: Order, trans: Transpose, m: c_int, n: c_int, kl: c_int, ku: c_int, alpha: c_float, a: *const c_float, lda: c_int, x: *const c_float, inc_x: c_int, beta: c_float, y: *mut c_float, inc_y: c_int)