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Why does std::optional not have a specialization for reference types?

Published on
#c++ #c++11 #language-design #stdoptional #boost-optional
1k
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Do std::optional and boost::optional respect alignment restrictions of the managed object?

Published on
#c++ #boost #c++17 #boost-optional #stdoptional
1.2k
Views

Why std::optional::value() &&; return &&?

Published on
#c++ #c++17 #stdoptional
252
Views

Performance between std::vector and std::array<std::optional>, n> to store small amount of data?

Published on
#c++ #c++17 #stdvector #stdarray #stdoptional
563
Views

How to upcast an static std::optional

Published on
#c++ #c++17 #upcasting #stdoptional
196
Views

How to rewrite with boost::optional in C++11?

Published on
#c++ #c++11 #boost-optional #stdoptional
2.1k
Views

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

Published on
#c++ #stdoptional
134
Views

Getting an optional of a class derived from abstract class, from a class derived from abstract class

Published on
#c++ #inheritance #polymorphism #stdoptional
188
Views

How std::optional library handles emplace operation?

Published on
#c++ #emplace #stdoptional
91
Views

Is it possible to convert an object to std::optional without move or copy constructor?

Published on
#c++ #stdoptional
92
Views

Is there another way to achieve the functionality of std::optional without another object being created?

Published on
#c++ #stdoptional
309
Views

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

Published on
#c++ #error-handling #constructor #c++17 #stdoptional
124
Views

MSVC (std:c++17) Optional always returning a value

Published on
#c++ #c++17 #c++20 #raytracing #stdoptional
13.1k
Views

Take value out of std::optional

Published on
#c++ #c++17 #option-type #stdoptional
1k
Views

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

Published on
#c++ #c++17 #move #stdoptional
457
Views

Does std::optional copy an object containing a std::unique_ptr

Published on
#c++ #c++17 #stdoptional
599
Views

Math on std::optionals?

Published on
#c++ #haskell #functional-programming #c++17 #stdoptional
1.3k
Views

How to in-place-construct an optional aggregate?

Published on
#c++ #c++17 #aggregate-initialization #construction #stdoptional
312
Views

Shouldn't std::optional contain its value while the emplacing constructor is executing?

Published on
#c++ #c++17 #language-lawyer #std #stdoptional
2.9k
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Why std::optional is allowed to be compared to value?

Published on
#c++ #c++17 #stdoptional

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