HelenOS sources

cref              102 uspace/lib/cpp/include/__bits/functional/reference_wrapper.hpp     void cref(const T&&) = delete;
cref              113 uspace/lib/cpp/include/__bits/functional/reference_wrapper.hpp         return cref(t.get());
cref              101 uspace/lib/cpp/src/__bits/test/tuple.cpp         auto tpl2 = std::make_tuple(std::ref(i), std::cref(f));