YouCompleteMe/cpp/llvm/tools/clang/test/SemaTemplate/metafun-apply.cpp
Strahinja Val Markovic 1f51a89d39 Adding more llvm/clang files
These were ignored by git accidentally. We want ALL OF THEM since they all came
in the llvm/clang source distribution.
2012-07-05 17:55:45 -07:00

41 lines
1.2 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
struct add_pointer {
template<typename T>
struct apply {
typedef T* type;
};
};
struct add_reference {
template<typename T>
struct apply {
typedef T& type; // expected-error{{cannot form a reference to 'void'}}
};
};
struct bogus {
struct apply {
typedef int type;
};
};
template<typename MetaFun, typename T>
struct apply1 {
typedef typename MetaFun::template apply<T>::type type; // expected-note{{in instantiation of template class 'add_reference::apply<void>' requested here}} \
// expected-error{{'apply' following the 'template' keyword does not refer to a template}}
};
int i;
apply1<add_pointer, int>::type ip = &i;
apply1<add_reference, int>::type ir = i;
apply1<add_reference, float>::type fr = i; // expected-error{{non-const lvalue reference to type 'float' cannot bind to a value of unrelated type 'int'}}
void test() {
apply1<add_reference, void>::type t; // expected-note{{in instantiation of template class 'apply1<add_reference, void>' requested here}}
apply1<bogus, int>::type t2; // expected-note{{in instantiation of template class 'apply1<bogus, int>' requested here}}
}