Function rcudnn_sys::cudnnRNNBackwardWeights_v8

pub unsafe extern "C" fn cudnnRNNBackwardWeights_v8(
    handle: cudnnHandle_t, 
    rnnDesc: cudnnRNNDescriptor_t, 
    addGrad: cudnnWgradMode_t, 
    devSeqLengths: *const i32, 
    xDesc: cudnnRNNDataDescriptor_t, 
    x: *const c_void, 
    hDesc: cudnnTensorDescriptor_t, 
    hx: *const c_void, 
    yDesc: cudnnRNNDataDescriptor_t, 
    y: *const c_void, 
    weightSpaceSize: usize, 
    dweightSpace: *mut c_void, 
    workSpaceSize: usize, 
    workSpace: *mut c_void, 
    reserveSpaceSize: usize, 
    reserveSpace: *mut c_void
) -> cudnnStatus_t