llvm-project/clang/test/SemaTemplate/explicit-specialization-mem...

69 lines
2.1 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s -fcxx-exceptions
template<typename T>
struct X0 {
typedef T* type;
void f0(T);
void f1(type);
};
template<> void X0<char>::f0(char);
template<> void X0<char>::f1(type);
namespace PR6161 {
template<typename _CharT>
class numpunct : public locale::facet // expected-error{{use of undeclared identifier 'locale'}} \
// expected-error{{expected class name}}
{
static locale::id id; // expected-error{{use of undeclared identifier}}
};
numpunct<char>::~numpunct();
}
namespace PR12331 {
template<typename T> struct S {
struct U { static const int n = 5; };
enum E { e = U::n }; // expected-note {{implicit instantiation first required here}}
int arr[e];
};
template<> struct S<int>::U { static const int n = sizeof(int); }; // expected-error {{explicit specialization of 'U' after instantiation}}
}
namespace PR18246 {
template<typename T>
class Baz {
public:
template<int N> void bar();
};
template<typename T>
template<int N>
void Baz<T>::bar() { // expected-note {{couldn't infer template argument 'N'}}
}
// FIXME: We shouldn't try to match this against a prior declaration if
// template parameter matching failed.
template<typename T>
void Baz<T>::bar<0>() { // expected-error {{cannot specialize a member of an unspecialized template}} \
// expected-error {{no function template matches}}
}
}
namespace PR19340 {
template<typename T> struct Helper {
template<int N> static void func(const T *m) {} // expected-note {{failed template argument deduction}}
};
template<typename T> void Helper<T>::func<2>() {} // expected-error {{cannot specialize a member}} \
// expected-error {{no function template matches}}
}
namespace SpecLoc {
template <typename T> struct A {
static int n; // expected-note {{previous}}
static void f(); // expected-note {{previous}}
};
template<> float A<int>::n; // expected-error {{different type}}
template<> void A<int>::f() throw(); // expected-error {{does not match}}
}