Why does std::optional not hav...

Can I have a std::optional<...

Iterating over std::optional...

Overhead of std::optional<T...

Is it ok to double-dereference...

Does passing an std::optional&...

`std::optional` factory functi...

Why is it undefined behavior t...

Is use of empty std::optional&...

What's the difference betw...

Is it useful to construct an s...

Unexpected behavior of std::is...

error: cannot convert 'std...

Writing functions which handle...

Pass-through constructor for s...

Pass-through constructor for s...

namespace std:: does not conta...

Is there another way to achiev...

How std::optional library hand...

Getting an optional of a class...

std::optional::transform with ...

Chain Optionals in C++...

Pass `std::optional::value` to...

Interaction between std::optio...

What's the point of ref-qu...

How would a std::optional<s...

Forward declaration of class i...

Why doesn't iterate over a...

optional refence to an object:...

std::minmax_element comparer f...