Does std::optional<>::emplace() invalidate references to the inner value?...

Should I move the value out of an optional or move the whole optional?...

Take value out of std::optional...

Can I create a reference to the value of an empty optional?...

How to sort container with std::optional type?...

std::optional default constructor not being constexpr in gcc?...

Assigning values to std::array of std::optional objects...

How best to test and unwrap std::optional in an if statement...

How to set a string to an optional string value?...

How to construct a std::optional of a struct with std::shared_ptr...

Is '_HAS_CXX17' macro usable in custom project headers to enable C++17 language set features...

hold reference object inside std::optional...

Using std::optional in a C++11 context...

Why does std::optional have a special equality operator for operand of the type std::nullopt...

Combining auto template parameters with std::optional, possible?...

What object is produced by ternary operator in C++?...

Why is std::optional's assignment operator not usable in compile-time context in this simple exa...

How to use second overload of std::optional<T>::emplace...

Why do std::optional constructors use std::in_place?...

Why is `std::optional<T>::operator=` deleted when T contains a `const` data member?...

How to in-place-construct an optional aggregate?...

Math on std::optionals?...

How to flatten the nested std::optional?...

How to move a value out of a std:optional without calling the destructor?...

How does std::optional delay initialization? / How is std::optional implemented?...

C++ ranges find and return std::optional like Java stream...

What is the point of `std::make_optional`...

How to use std::optional for error handling when creating objects without instantly destructing them...

Is there a less verbose idiom for unpacking an optional in C++?...

Converting one std::optional to another std::optional...