temp_class_order.cpp
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// RUN: %clang_cc1 -fsyntax-only -verify %s
template<typename T, typename U>
struct X1 {
static const int value = 0;
};
template<typename T, typename U>
struct X1<T*, U*> {
static const int value = 1;
};
template<typename T>
struct X1<T*, T*> {
static const int value = 2;
};
template<typename T>
struct X1<const T*, const T*> {
static const int value = 3;
};
int array0[X1<int, int>::value == 0? 1 : -1];
int array1[X1<int*, float*>::value == 1? 1 : -1];
int array2[X1<int*, int*>::value == 2? 1 : -1];
typedef const int* CIP;
int array3[X1<const int*, CIP>::value == 3? 1 : -1];
template<typename T, typename U>
struct X2 { };
template<typename T, typename U>
struct X2<T*, U> { }; // expected-note{{matches}}
template<typename T, typename U>
struct X2<T, U*> { }; // expected-note{{matches}}
template<typename T, typename U>
struct X2<const T*, const U*> { };
X2<int*, int*> x2a; // expected-error{{ambiguous}}
X2<const int*, const int*> x2b;