Function dger 

pub unsafe fn dger(
    handle: cublasHandle_t,
    m: c_int,
    n: c_int,
    alpha: *const f64,
    x: CUdeviceptr,
    incx: c_int,
    y: CUdeviceptr,
    incy: c_int,
    a: CUdeviceptr,
    lda: c_int,
) -> Result<(), GpuError>