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101 lines
2.2 KiB
101 lines
2.2 KiB
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
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// PR4607
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template <class T> struct X {};
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template <> struct X<char>
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{
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static char* g();
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};
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template <class T> struct X2 {};
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template <class U>
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struct X2<U*> {
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static void f() {
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X<U>::g();
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}
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};
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void a(char *a, char *b) {X2<char*>::f();}
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namespace WonkyAccess {
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template<typename T>
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struct X {
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int m;
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};
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template<typename U>
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class Y;
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template<typename U>
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struct Y<U*> : X<U> { };
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template<>
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struct Y<float*> : X<float> { };
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int f(Y<int*> y, Y<float*> y2) {
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return y.m + y2.m;
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}
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}
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// <rdar://problem/9169404>
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namespace rdar9169404 {
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template<typename T, T N> struct X { };
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template<bool C> struct X<bool, C> {
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typedef int type;
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};
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X<bool, -1>::type value;
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#if __cplusplus >= 201103L
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// expected-error@-2 {{non-type template argument evaluates to -1, which cannot be narrowed to type 'bool'}}
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#else
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// expected-no-diagnostics
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#endif
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}
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// rdar://problem/39524996
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namespace rdar39524996 {
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template <typename T, typename U>
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struct enable_if_not_same
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{
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typedef void type;
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};
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template <typename T>
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struct enable_if_not_same<T, T>;
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template <typename T>
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struct Wrapper {
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// Assertion triggered on trying to set twice the same partial specialization
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// enable_if_not_same<int, int>
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template <class U>
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Wrapper(const Wrapper<U>& other,
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typename enable_if_not_same<U, T>::type* = 0) {}
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explicit Wrapper(int i) {}
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};
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template <class T>
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struct Container {
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// It is important that the struct has implicit copy and move constructors.
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Container() : x() {}
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template <class U>
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Container(const Container<U>& other) : x(static_cast<T>(other.x)) {}
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// Implicit constructors are member-wise, so the field triggers instantiation
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// of T constructors and we instantiate all of them for overloading purposes.
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T x;
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};
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void takesWrapperInContainer(const Container< Wrapper<int> >& c);
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void test() {
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// Type mismatch triggers initialization with conversion which requires
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// implicit constructors to be instantiated.
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Container<int> c;
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takesWrapperInContainer(c);
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}
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}
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