Function rgsl::cblas::level2::dtpmv

pub fn dtpmv(
    order: CblasOrder, 
    uplo: CblasUplo, 
    transA: CblasTranspose, 
    diag: CblasDiag, 
    N: i32, 
    Ap: &[f64], 
    X: &mut [f64], 
    incx: i32
)