struct one { char c[1]; };
struct two { char c[2]; };
+namespace std {
+ typedef decltype(sizeof(int)) size_t;
+
+ // libc++'s implementation
+ template <class _E>
+ class initializer_list
+ {
+ const _E* __begin_;
+ size_t __size_;
+
+ initializer_list(const _E* __b, size_t __s)
+ : __begin_(__b),
+ __size_(__s)
+ {}
+
+ public:
+ typedef _E value_type;
+ typedef const _E& reference;
+ typedef const _E& const_reference;
+ typedef size_t size_type;
+
+ typedef const _E* iterator;
+ typedef const _E* const_iterator;
+
+ initializer_list() : __begin_(nullptr), __size_(0) {}
+
+ size_t size() const {return __size_;}
+ const _E* begin() const {return __begin_;}
+ const _E* end() const {return __begin_ + __size_;}
+ };
+}
+
namespace integral {
void initialization() {
new int({0}); // expected-error {{cannot initialize}}
}
}
+
+namespace PR12118 {
+ void test() {
+ one f(std::initializer_list<int>);
+ two f(int);
+
+ // to initializer_list is preferred
+ static_assert(sizeof(f({0})) == sizeof(one), "bad overload");
+ }
+}