pub unsafe extern "C" fn cudnnFindRNNBackwardWeightsAlgorithmEx(
handle: *mut cudnnContext,
rnnDesc: *mut cudnnRNNStruct,
seqLength: i32,
xDesc: *const *mut cudnnTensorStruct,
x: *const c_void,
hxDesc: *mut cudnnTensorStruct,
hx: *const c_void,
yDesc: *const *mut cudnnTensorStruct,
y: *const c_void,
findIntensity: f32,
requestedAlgoCount: i32,
returnedAlgoCount: *mut i32,
perfResults: *mut *mut cudnnAlgorithmPerformanceStruct,
workspace: *const c_void,
workSpaceSizeInBytes: usize,
dwDesc: *mut cudnnFilterStruct,
dw: *mut c_void,
reserveSpace: *const c_void,
reserveSpaceSizeInBytes: usize
) -> cudnnStatus_t