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// RUN: %clang_cc1 -fsyntax-only -fdiagnostics-show-option -verify %s
// RUN: %clang_cc1 -fsyntax-only -fdiagnostics-show-option -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -fdiagnostics-show-option -verify -std=c++11 %s
// C++98 [basic.lookup.classref]p1:
// In a class member access expression (5.2.5), if the . or -> token is
// immediately followed by an identifier followed by a <, the identifier must
// be looked up to determine whether the < is the beginning of a template
// argument list (14.2) or a less-than operator. The identifier is first
// looked up in the class of the object expression. If the identifier is not
// found, it is then looked up in the context of the entire postfix-expression
// and shall name a class or function template. If the lookup in the class of
// the object expression finds a template, the name is also looked up in the
// context of the entire postfix-expression and
// -- if the name is not found, the name found in the class of the object
// expression is used, otherwise
// -- if the name is found in the context of the entire postfix-expression
// and does not name a class template, the name found in the class of the
// object expression is used, otherwise
// -- if the name found is a class template, it must refer to the same
// entity as the one found in the class of the object expression,
// otherwise the program is ill-formed.
// From PR 7247
template<typename T>
struct set{};
#if __cplusplus <= 199711L
// expected-note@-2 {{lookup from the current scope refers here}}
#endif
struct Value {
template<typename T>
void set(T value) {}
#if __cplusplus <= 199711L
// expected-note@-2 {{lookup in the object type 'Value' refers here}}
#endif
void resolves_to_same() {
Value v;
v.set<double>(3.2);
}
};
void resolves_to_different() {
{
Value v;
// The fact that the next line is a warning rather than an error is an
// extension.
v.set<double>(3.2);
#if __cplusplus <= 199711L
// expected-warning@-2 {{lookup of 'set' in member access expression is ambiguous; using member of 'Value'}}
#endif
}
{
int set; // Non-template.
Value v;
v.set<double>(3.2);
}
}
namespace rdar9915664 {
struct A {
template<typename T> void a();
};
struct B : A { };
struct C : A { };
struct D : B, C {
A &getA() { return static_cast<B&>(*this); }
void test_a() {
getA().a<int>();
}
};
}
namespace PR11856 {
template<typename T> T end(T);
template <typename T>
void Foo() {
T it1;
if (it1->end < it1->end) {
}
}
template<typename T> T *end(T*);
class X { };
template <typename T>
void Foo2() {
T it1;
if (it1->end < it1->end) {
}
X *x;
if (x->end < 7) { // expected-error{{no member named 'end' in 'PR11856::X'}}
}
}
}
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