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optionalhttp://ru.cppreference.com/cpp/utility/optional
anyhttp://ru.cppreference.com/cpp/utility/any
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std::optionalhttp://ru.cppreference.com/cpp/utility/optional
optional::~optionalhttp://ru.cppreference.com/cpp/utility/optional/~optional
optional::operator=http://ru.cppreference.com/cpp/utility/optional/operator%3D
optional::operator->optional::operator*http://ru.cppreference.com/cpp/utility/optional/operator*
optional::operator booloptional::has_valuehttp://ru.cppreference.com/cpp/utility/optional/operator_bool
optional::valuehttp://ru.cppreference.com/cpp/utility/optional/value
optional::value_orhttp://ru.cppreference.com/cpp/utility/optional/value_or
optional::and_thenhttp://ru.cppreference.com/cpp/utility/optional/and_then
optional::transformhttp://ru.cppreference.com/cpp/utility/optional/transform
optional::or_elsehttp://ru.cppreference.com/cpp/utility/optional/or_else
optional::emplacehttp://ru.cppreference.com/cpp/utility/optional/emplace
optional::swaphttp://ru.cppreference.com/cpp/utility/optional/swap
optional::resethttp://ru.cppreference.com/cpp/utility/optional/reset
operator==operator!=operatoroperator>=operator<=>http://ru.cppreference.com/cpp/utility/optional/operator_cmp
make_optionalhttp://ru.cppreference.com/cpp/utility/optional/make_optional
swaphttp://ru.cppreference.com/cpp/utility/optional/swap2
Правила выводаhttp://ru.cppreference.com/cpp/utility/optional/deduction_guides
hashhttp://ru.cppreference.com/cpp/utility/optional/hash
nullopt_thttp://ru.cppreference.com/cpp/utility/optional/nullopt_t
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1 Параметрыhttp://ru.cppreference.com/cpp/utility/optional/optional#Параметры
2 Исключенияhttp://ru.cppreference.com/cpp/utility/optional/optional#Исключения
3 Правила выводаhttp://ru.cppreference.com/cpp/utility/optional/optional#Правила_вывода
4 Примечанияhttp://ru.cppreference.com/cpp/utility/optional/optional#Примечания
5 Примерhttp://ru.cppreference.com/cpp/utility/optional/optional#Пример
6 Отчёты о дефектахhttp://ru.cppreference.com/cpp/utility/optional/optional#Отчёты_о_дефектах
7 Смотрите такжеhttp://ru.cppreference.com/cpp/utility/optional/optional#Смотрите_также
noexcepthttp://ru.cppreference.com/cpp/language/noexcept_spec
Правила выводаhttp://ru.cppreference.com/cpp/utility/optional/deduction_guides
LWG проблема 3836https://cplusplus.github.io/LWG/issue3836
std::optional::operator boolhttp://ru.cppreference.com/cpp/utility/optional/operator_bool
LWG 3836http://open-std.org/JTC1/SC22/WG21/docs/lwg-defects.html#3836
make_optionalhttp://ru.cppreference.com/cpp/utility/optional/make_optional
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