Function cuCtxPopCurrent_v2

pub unsafe extern "C" fn cuCtxPopCurrent_v2(
    pctx: *mut CUcontext,
) -> CUresult

\brief Pops the current CUDA context from the current CPU thread.

Pops the current CUDA context from the CPU thread and passes back the old context handle in \p *pctx. That context may then be made current to a different CPU thread by calling ::cuCtxPushCurrent().

If a context was current to the CPU thread before ::cuCtxCreate() or ::cuCtxPushCurrent() was called, this function makes that context current to the CPU thread again.

\param pctx - Returned popped context handle

\return ::CUDA_SUCCESS, ::CUDA_ERROR_DEINITIALIZED, ::CUDA_ERROR_NOT_INITIALIZED, ::CUDA_ERROR_INVALID_CONTEXT \notefnerr

\sa ::cuCtxCreate, ::cuCtxDestroy, ::cuCtxGetApiVersion, ::cuCtxGetCacheConfig, ::cuCtxGetDevice, ::cuCtxGetFlags, ::cuCtxGetLimit, ::cuCtxPushCurrent, ::cuCtxSetCacheConfig, ::cuCtxSetLimit, ::cuCtxSynchronize