What's the point of ref-qualified member functions in `std::optional::value`...

How would a std::optional<std::nullopt_t> operate?...

Forward declaration of class inside unique_ptr inside optional with default argument fails...

Why doesn't iterate over a container accessed directly through std::optional<T>::value() w...

optional refence to an object: best way?...

std::minmax_element comparer for a vector with std::optional is incorrect...

Can I make std::optional<std::exception>::value() return the (polymorphic) inherited exception...

Bind reference to T& in both cases, std::optional<T> and T, at compile time...

ranges::views::filter no longer compatible with std::optional, msvc v19.36...

Using std::optional to invalidate my RAII object in move constructor/asignment...

How can I get clang-tidy to not complain about passing kind-of-lightweight types by value?...

What is the use case for not having lazy evaluation of value_or()?...

What are monadic bind and monadic return for C++23 optional?...

Is there a macro to make std::optional::operator* throw on bad access?...

Copy/move elision vs emplace with std::optional...

std::optional<T> appears to destroy T twice when leaving its scope. Why?...

Using boost::program_options with std::optional...

C++ compiler says "inconsistent deduction for auto return type"...

How to efficiently return an std::optional...

creating std::functional object to wrap a lambda with a call to static member function...

Can I copy-elide an immovable & uncopyable function result into an optional?...

prevent initializing std::optional<std::reference_wrapper<const T>> with rvalue std::opt...

Why do the C++ Core Guidelines not recommend to use std::optional over pointers when approriate?...

What are the advantages/disadvantages of std::optional over nullptr?...

Does std::optional contain a value during construction?...

When would you use optional<not_null<T*>>...

Why is there no built-in way to get a pointer from an std::optional?...

Does std::make_tuple() not work with objects of type std::optional?...

How to pass std::optional struct that contains std::unique_ptr to a function?...

use of std::experimental::optional with g++ v8.2.0...