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// PR c++/67018
// { dg-options "-std=c++1z -fconcepts" }
template <typename T>
constexpr bool Val = true;
template <class I>
concept bool InputIterator = requires (I i) {
requires Val <decltype(i++)>;
};
template <class I>
concept bool ForwardIterator = InputIterator<I> && true;
template<InputIterator>
constexpr bool f() { return false; }
template<ForwardIterator>
constexpr bool f() { return true; }
static_assert(f<int*>());
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