std::execution::let_error

Header: <execution>

Returns a sender describing the task graph described by the input sender, with an added node of invoking the provided function with errors sent by the input sender, if an error occurs.

# Declarations

execution::sender auto
let_error( execution::sender auto input,
std::invocable</*errors-sent-by*/(input)...> function );

(since C++26)

# 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 occurs 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 errors sent by the input sender, if an error occurs.

# Example

This section is incompleteReason: no example