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optional
robot-contrib 262241439f Update contrib/restricted/boost/optional to 1.83.0 1 year ago
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README.md da8658093c Reimport boost/optional as a separate project 2 years ago
ya.make 262241439f Update contrib/restricted/boost/optional to 1.83.0 1 year ago

README.md

optional

A library for representing optional (nullable) objects in C++.

optional<int> readInt(); // this function may return either an int or a not-an-int

if (optional<int> oi = readInt()) // did I get a real int
  cout << "my int is: " << *oi;   // use my int
else
  cout << "I have no int";

For more information refer to the documentation provided with this library.