Function gsl_sys::cblas_dgemv

pub unsafe extern "C" fn cblas_dgemv(
    order: CBLAS_ORDER, 
    TransA: CBLAS_TRANSPOSE, 
    M: c_int, 
    N: c_int, 
    alpha: f64, 
    A: *const f64, 
    lda: c_int, 
    X: *const f64, 
    incX: c_int, 
    beta: f64, 
    Y: *mut f64, 
    incY: c_int
)