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1e2aed8276
I have split tests for conversions from uptional<U> and from U to optional<T>. I have split the optional refs tests that are expected to pass on all compilers. I started using lightweight_test instead of Boost.Test (now only in some files).
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.