1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 2 // expected-no-diagnostics 3 4 template<template<template<typename> class, typename> class T, template<typename> class V> struct PartialApply { 5 template<typename W> using R = T<V, W>; 6 }; 7 8 template<typename T> using Id = T; 9 template<template<typename> class, typename X> using Zero = X; 10 template<template<template<typename> class, typename> class N, template<typename> class F, typename X> using Succ = F<N<F,X>>; 11 12 template<template<typename> class F, typename X> using One = Succ<Zero, F, X>; 13 template<template<typename> class F, typename X> using Two = Succ<One, F, X>; 14 15 template<template<template<typename> class, typename> class A, 16 template<template<typename> class, typename> class B, 17 template<typename> class F, 18 typename X> using Add = A<F, B<F, X>>; 19 20 template<template<template<typename> class, typename> class A, 21 template<template<typename> class, typename> class B, 22 template<typename> class F, 23 typename X> using Mul = A<PartialApply<B,F>::template R, X>; 24 25 template<template<typename> class F, typename X> using Four = Add<Two, Two, F, X>; 26 template<template<typename> class F, typename X> using Sixteen = Mul<Four, Four, F, X>; 27 template<template<typename> class F, typename X> using TwoHundredAndFiftySix = Mul<Sixteen, Sixteen, F, X>; 28 29 template<typename T, T N> struct Const { static const T value = N; }; 30 template<typename A> struct IncrementHelper; 31 template<typename T, T N> struct IncrementHelper<Const<T, N>> { using Result = Const<T, N+1>; }; 32 template<typename A> using Increment = typename IncrementHelper<A>::Result; 33 34 using Arr = int[TwoHundredAndFiftySix<Increment, Const<int, 0>>::value]; 35 using Arr = int[256]; 36