cuda::experimental::stf::run_once
Defined in include/cuda/experimental/__stf/utility/run_once.cuh
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template<typename ...Ts>
class run_once A class that ensures a function is executed only once for a given set of arguments (including none).
The
run_onceclass is a utility that caches the result of a function call based on its arguments, ensuring that the function is only run once for each unique set of arguments. It is particularly useful in scenarios where a function call is expensive and the result is invariant for the same input parameters.- Template Parameters
Ts – Types of the arguments used to uniquely identify the function call.
Public Functions
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inline run_once(Ts... val)
Constructs the
run_onceobject with given arguments.These arguments are used to uniquely identify the function call.
- Parameters
val – Arguments that are used to determine if the function has been run before.
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template<typename Fun>
inline auto &operator->*(Fun &&fun) && Invokes the function if it has not been run with the stored arguments before.
If the function has been run before with the same arguments, returns the cached result.
- Template Parameters
Fun – The type of the function to be executed.
- Parameters
fun – The function to be executed.
- Returns
The result of the function call. The type of the result is determined by the return type of the function.