63 struct ForwardRange : std::ranges::view_interface<ForwardRange> {  struct
68 static_assert(std::ranges::view<ForwardRange>);  argument
158   static_assert( EmptyInvocable<ForwardRange>);  in testEmpty()
161   static_assert( BoolOpInvocable<ForwardRange>);  in testEmpty()
163   ForwardRange forwardRange;  in testEmpty()
165   assert(!static_cast<ForwardRange const&>(forwardRange).empty());  in testEmpty()
168   assert(static_cast<ForwardRange const&>(forwardRange));  in testEmpty()
171   assert(!std::ranges::empty(static_cast<ForwardRange const&>(forwardRange)));  in testEmpty()
208   static_assert(!DataInvocable<ForwardRange>);  in testData()
235   static_assert( SizeInvocable<ForwardRange>);  in testSize()
237   ForwardRange forwardRange;  in testSize()
239   assert(static_cast<ForwardRange const&>(forwardRange).size() == 8);  in testSize()
242   assert(std::ranges::size(static_cast<ForwardRange const&>(forwardRange)) == 8);  in testSize()
259   static_assert(!SubscriptInvocable<ForwardRange>);  in testSubscript()
279   static_assert( FrontInvocable<ForwardRange>);  in testFrontBack()
280   static_assert(!BackInvocable<ForwardRange>);  in testFrontBack()
283   ForwardRange forwardRange;  in testFrontBack()
285   assert(static_cast<ForwardRange const&>(forwardRange).front() == 0);  in testFrontBack()