Add the clang library to the repo (with some of my changes, too).

1 files changed, 34 insertions, 0 deletions

diff --git a/clang/test/SemaTemplate/alias-church-numerals.cpp b/clang/test/SemaTemplate/alias-church-numerals.cpp
new file mode 100644
index 0000000..69d7716
--- /dev/null
+++ b/clang/test/SemaTemplate/alias-church-numerals.cpp
@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+
+template<template<template<typename> class, typename> class T, template<typename> class V> struct PartialApply {
+  template<typename W> using R = T<V, W>;
+};
+
+template<typename T> using Id = T;
+template<template<typename> class, typename X> using Zero = X;
+template<template<template<typename> class, typename> class N, template<typename> class F, typename X> using Succ = F<N<F,X>>;
+
+template<template<typename> class F, typename X> using One = Succ<Zero, F, X>;
+template<template<typename> class F, typename X> using Two = Succ<One, F, X>;
+
+template<template<template<typename> class, typename> class A,
+         template<template<typename> class, typename> class B,
+         template<typename> class F,
+         typename X> using Add = A<F, B<F, X>>;
+
+template<template<template<typename> class, typename> class A,
+         template<template<typename> class, typename> class B,
+         template<typename> class F,
+         typename X> using Mul = A<PartialApply<B,F>::template R, X>;
+
+template<template<typename> class F, typename X> using Four = Add<Two, Two, F, X>;
+template<template<typename> class F, typename X> using Sixteen = Mul<Four, Four, F, X>;
+template<template<typename> class F, typename X> using TwoHundredAndFiftySix = Mul<Sixteen, Sixteen, F, X>;
+
+template<typename T, T N> struct Const { static const T value = N; };
+template<typename A> struct IncrementHelper;
+template<typename T, T N> struct IncrementHelper<Const<T, N>> { using Result = Const<T, N+1>; };
+template<typename A> using Increment = typename IncrementHelper<A>::Result;
+
+using Arr = int[TwoHundredAndFiftySix<Increment, Const<int, 0>>::value];
+using Arr = int[256];