1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
26   int &i; // expected-error {{union member 'i' has reference type 'int &'}}
70     bool has;  member
71     union { T value; };  member
73     optional() : has(false) {}  in optional()
75     optional(U &&...u) : has(true), value(forward<U>(u)...) {}  in optional()
77     optional(const optional &o) : has(o.has) {  in optional()
78       if (has) new (&value) T(o.value);  in optional()
80     optional(optional &&o) : has(o.has) {  in optional()
81       if (has) new (&value) T(move(o.value));  in optional()
85       if (has) {  in operator =()
86         if (o.has)  in operator =()
87           value = o.value;  in operator =()
89           value.~T();  in operator =()
90       } else if (o.has) {  in operator =()
91         new (&value) T(o.value);  in operator =()
93       has = o.has;  in operator =()
96       if (has) {  in operator =()
97         if (o.has)  in operator =()
98           value = move(o.value);  in operator =()
100           value.~T();  in operator =()
101       } else if (o.has) {  in operator =()
102         new (&value) T(move(o.value));  in operator =()
104       has = o.has;  in operator =()
108       if (has)  in ~optional()
109         value.~T();  in ~optional()
112     explicit operator bool() const { return has; }  in operator bool()
113     T &operator*() const { return value; }  in operator *()
139 …struct {  // expected-note {{default constructor of 'Test2<pr16061::X>' is implicitly deleted beca…
145 …Test2<X> t2x;  // expected-error {{call to implicitly-deleted default constructor of 'Test2<pr1606…