Function cblas_sys::cblas_dsyr

pub unsafe extern "C" fn cblas_dsyr(
    layout: CBLAS_LAYOUT, 
    uplo: CBLAS_UPLO, 
    n: c_int, 
    alpha: c_double, 
    x: *const c_double, 
    incx: c_int, 
    a: *mut c_double, 
    lda: c_int
)