boost::optional alternative in C++ Standard Library

c++ c++11 boost std boost-optional
Dmitry Bespalov picture Dmitry Bespalov · Jan 15, 2012 · Viewed 12.5k times · Source

I'm trying to get my program working without boost usage, but can't find an alternative of some useful patterns. Namely, I can't find boost::optional-likewise pattern in the standard library. Is there some standard alternative for boost::optional (C++11 or somewhere else)?

Answer

pmr picture pmr · Jan 15, 2012

Short answer: No.

Long answer: Roll your own according to the boost spec. The documentation is quite exhaustive and the code isn't that complex, but this still requires above average C++ skills.

To update this answer: C++14 unfortunately did not ship with std::optional. The current proposal (Revision 5) is N3793 and it is expected to be shipped as a separate technical specification or to become part of C++17.

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