diff options
Diffstat (limited to 'clang/test/CXX/temp/temp.decls/temp.mem/p5.cpp')
-rw-r--r-- | clang/test/CXX/temp/temp.decls/temp.mem/p5.cpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/clang/test/CXX/temp/temp.decls/temp.mem/p5.cpp b/clang/test/CXX/temp/temp.decls/temp.mem/p5.cpp new file mode 100644 index 0000000..8bcd773 --- /dev/null +++ b/clang/test/CXX/temp/temp.decls/temp.mem/p5.cpp @@ -0,0 +1,79 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s +struct A { + template <class T> operator T*(); +}; + +template <class T> A::operator T*() { return 0; } +template <> A::operator char*(){ return 0; } // specialization +template A::operator void*(); // explicit instantiation + +int main() { + A a; + int *ip; + ip = a.operator int*(); +} + +// PR5742 +namespace PR5742 { + template <class T> struct A { }; + template <class T> struct B { }; + + struct S { + template <class T> operator T(); + } s; + + void f() { + s.operator A<A<int> >(); + s.operator A<B<int> >(); + s.operator A<B<A<int> > >(); + } +} + +// PR5762 +class Foo { + public: + template <typename T> operator T(); + + template <typename T> + T As() { + return this->operator T(); + } + + template <typename T> + T As2() { + return operator T(); + } + + int AsInt() { + return this->operator int(); + } +}; + +template float Foo::As(); +template double Foo::As2(); + +// Partial ordering with conversion function templates. +struct X0 { + template<typename T> operator T*() { + T x = 1; + x = 17; // expected-error{{read-only variable is not assignable}} + } + + template<typename T> operator T*() const; // expected-note{{explicit instantiation refers here}} + + template<typename T> operator const T*() const { + T x = T(); + return x; // expected-error{{cannot initialize return object of type 'const char *' with an lvalue of type 'char'}} \ + // expected-error{{cannot initialize return object of type 'const int *' with an lvalue of type 'int'}} + } +}; + +template X0::operator const char*() const; // expected-note{{'X0::operator const char *<char>' requested here}} +template X0::operator const int*(); // expected-note{{'X0::operator const int *<const int>' requested here}} +template X0::operator float*() const; // expected-error{{explicit instantiation of undefined function template}} + +void test_X0(X0 x0, const X0 &x0c) { + x0.operator const int*(); // expected-note{{in instantiation of function template specialization}} + x0.operator float *(); + x0c.operator const char*(); +} |