HelenOS sources

unique            295 uspace/lib/cpp/src/__bits/test/list.cpp         l5.unique();
unique            306 uspace/lib/cpp/src/__bits/test/list.cpp         l6.unique([](auto lhs, auto rhs){ return lhs == rhs + 1; });
unique            162 uspace/lib/cpp/src/__bits/test/memory.cpp             test_eq("shared_ptr unique", ptr1.unique(), true);
unique            168 uspace/lib/cpp/src/__bits/test/memory.cpp                 test_eq("shared_ptr not unique", ptr1.unique(), false);