163   ForwardRange forwardRange;  in testEmpty()  local
164   assert(!forwardRange.empty());  in testEmpty()
165   assert(!static_cast<ForwardRange const&>(forwardRange).empty());  in testEmpty()
167   assert(forwardRange);  in testEmpty()
168   assert(static_cast<ForwardRange const&>(forwardRange));  in testEmpty()
170   assert(!std::ranges::empty(forwardRange));  in testEmpty()
171   assert(!std::ranges::empty(static_cast<ForwardRange const&>(forwardRange)));  in testEmpty()
237   ForwardRange forwardRange;  in testSize()  local
238   assert(forwardRange.size() == 8);  in testSize()
239   assert(static_cast<ForwardRange const&>(forwardRange).size() == 8);  in testSize()
241   assert(std::ranges::size(forwardRange) == 8);  in testSize()
242   assert(std::ranges::size(static_cast<ForwardRange const&>(forwardRange)) == 8);  in testSize()
283   ForwardRange forwardRange;  in testFrontBack()  local
284   assert(forwardRange.front() == 0);  in testFrontBack()
285   assert(static_cast<ForwardRange const&>(forwardRange).front() == 0);  in testFrontBack()
286   forwardRange.front() = 2;  in testFrontBack()
287   assert(forwardRange.front() == 2);  in testFrontBack()