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std::execution::upon_error(3) C++ Standard Libarystd::execution::upon_error(3)

NAME
       std::execution::upon_error - std::execution::upon_error

Synopsis
	  Defined in header <execution>
	  execution::sender auto upon_error(

	      execution::sender	auto input,			 (since	C++26)
	      std::invocable<errors-sent-by(input)...> function

	  );

Parameters
	  input	    -  sender  which once an error occurs, sends the errors to
       the function
	  function - invocable to be called with errors	in case	an  error  oc-
       curs by input
		     sender

Return value
	  Returns  a  sender  describing the task graph	described by the input
       sender, with an
	  added	node of	invoking the provided function with the	errors sent by
       the input
	  sender as arguments (in case of an error).

http://cppreference.com		  2024.06.10	 std::execution::upon_error(3)

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