decltype(auto) try_operation_extract_value(X)

This default implementation returns whatever the .assume_value() or .value() member functions return, preferentially choosing the former where both are available.

Requires: That the expression std::declval<T>().assume_value() and/or std::declval<T>().value() is a valid expression.

Namespace: OUTCOME_V2_NAMESPACE

Header: <outcome/try.hpp>