1// RUN: %clang_cc1 -fsyntax-only -Wdangling-field -verify -std=c++11 %s
2
3struct X {
4  X(int);
5};
6struct Y {
7  operator X*();
8  operator X&();
9};
10
11struct S {
12  int &x, *y;  // expected-note {{reference member declared here}} \
13               // expected-note {{pointer member declared here}}
14  S(int i)
15    : x(i),    // expected-warning {{binding reference member 'x' to stack allocated parameter 'i'}}
16      y(&i) {} // expected-warning {{initializing pointer member 'y' with the stack address of parameter 'i'}}
17  S(int &i) : x(i), y(&i) {} // no-warning: reference parameter
18  S(int *i) : x(*i), y(i) {} // no-warning: pointer parameter
19};
20
21struct S2 {
22  const X &x; // expected-note {{reference member declared here}}
23  S2(int i) : x(i) {} // expected-warning {{binding reference member 'x' to a temporary}}
24};
25
26struct S3 {
27  X &x1, *x2;
28  S3(Y y) : x1(y), x2(y) {} // no-warning: conversion operator
29};
30
31template <typename T> struct S4 {
32  T x; // expected-note {{reference member declared here}}
33  S4(int i) : x(i) {} // expected-warning {{binding reference member 'x' to stack allocated parameter 'i'}}
34};
35
36template struct S4<int>; // no warning from this instantiation
37template struct S4<int&>; // expected-note {{in instantiation}}
38
39struct S5 {
40  const X &x; // expected-note {{here}}
41};
42S5 s5 = { 0 }; // ok, lifetime-extended
43
44struct S6 {
45  S5 s5; // expected-note {{here}}
46  S6() : s5 { 0 } {} // expected-warning {{binding reference subobject of member 's5' to a temporary}}
47};
48
49struct S7 : S5 {
50  S7() : S5 { 0 } {} // expected-warning {{binding reference member 'x' to a temporary}}
51};
52