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std::execution::just_error(3) C++ Standard Libary std::execution::just_error(3)

NAME

std::execution::just_error - std::execution::just_error

Synopsis


Defined in header <execution>
execution::sender auto just_error( auto && error ); (since C++26)

Parameters


error - input error which will be injected and returned by the receiver.

Return value


Returns a sender with no completion schedulers, which sends the provided values.

Notes


If the provided error is an lvalue reference, a copy is made inside the returned
sender and a non-const lvalue reference to the copy is sent to the receiver’s
set_error. If the provided value is an rvalue reference, it is moved into the
returned sender and an rvalue reference to it is sent to the receiver’s set_error.

2024.06.10 http://cppreference.com