pub unsafe extern "C" fn blas_zusdot_(
    conj: *mut blas_conj_type,
    nnz: *mut c_int,
    x: *const c_void,
    indx: *const c_int,
    y: *const c_void,
    incy: *mut c_int,
    r: *mut c_void,
    index_base: *mut blas_base_type,
    istat: *mut c_int
)