Function rcudnn_sys::cudnnRNNBackwardWeightsEx

pub unsafe extern "C" fn cudnnRNNBackwardWeightsEx(
    handle: cudnnHandle_t, 
    rnnDesc: cudnnRNNDescriptor_t, 
    xDesc: cudnnRNNDataDescriptor_t, 
    x: *const c_void, 
    hxDesc: cudnnTensorDescriptor_t, 
    hx: *const c_void, 
    yDesc: cudnnRNNDataDescriptor_t, 
    y: *const c_void, 
    workSpace: *mut c_void, 
    workSpaceSizeInBytes: usize, 
    dwDesc: cudnnFilterDescriptor_t, 
    dw: *mut c_void, 
    reserveSpace: *mut c_void, 
    reserveSpaceSizeInBytes: usize
) -> cudnnStatus_t