Function compute_answer

example/exception_to_result.cpp:34–44

Call compute_answer_throws, switch to result for error handling.

// Call compute_answer_throws, switch to result<int> for error handling.
leaf::result<int> compute_answer() noexcept
{
    // Convert exceptions of types error_a and error_b to be communicated by
    // leaf::result. Any other exception will be communicated as a
    // std::exception_ptr.
    return leaf::exception_to_result<error_a, error_b>(
        []
        {
            return compute_answer_throws();
        } );
}


// Print the answer if the call to compute_answer is successful.