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comparison gcc/testsuite/g++.dg/cpp1z/decomp48.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 // PR c++/87582
2 // { dg-do run { target c++11 } }
3 // { dg-options "-Wreturn-local-addr" }
4
5 struct S { int s, t; };
6 S v {1, 2};
7 int a[3] = {1, 2, 3};
8
9 int &
10 f1 ()
11 {
12 auto& [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
13 return s; // { dg-bogus "reference to local variable '.' returned" }
14 }
15
16 int &
17 f2 ()
18 {
19 S v {1, 2};
20 auto& [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
21 return s; // { dg-warning "reference to local variable 'v' returned" }
22 }
23
24 int &
25 f3 ()
26 {
27 auto& [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
28 return s; // { dg-bogus "reference to local variable '.' returned" }
29 }
30
31 int &
32 f4 ()
33 {
34 int a[3] = {1, 2, 3};
35 auto& [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
36 return s; // { dg-warning "reference to local variable 'a' returned" }
37 }
38
39 int &
40 f5 ()
41 {
42 auto [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
43 return s; // { dg-warning "reference to local variable 's' returned" }
44 }
45
46 int &
47 f6 ()
48 {
49 S v {1, 2};
50 auto [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
51 return s; // { dg-warning "reference to local variable 's' returned" }
52 }
53
54 int &
55 f7 ()
56 {
57 auto [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
58 return s; // { dg-warning "reference to local variable 's' returned" }
59 }
60
61 int &
62 f8 ()
63 {
64 int a[3] = {1, 2, 3};
65 auto [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
66 return s; // { dg-warning "reference to local variable 's' returned" }
67 }
68
69 int *
70 f9 ()
71 {
72 auto& [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
73 return &s; // { dg-bogus "address of local variable '.' returned" }
74 }
75
76 int *
77 f10 ()
78 {
79 S v {1, 2};
80 auto& [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
81 return &s; // { dg-warning "address of local variable 'v' returned" }
82 }
83
84 int *
85 f11 ()
86 {
87 auto& [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
88 return &s; // { dg-bogus "address of local variable '.' returned" }
89 }
90
91 int *
92 f12 ()
93 {
94 int a[3] = {1, 2, 3};
95 auto& [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
96 return &s; // { dg-warning "address of local variable 'a' returned" }
97 }
98
99 int *
100 f13 ()
101 {
102 auto [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
103 return &s; // { dg-warning "address of local variable 's' returned" }
104 }
105
106 int *
107 f14 ()
108 {
109 S v {1, 2};
110 auto [s, t] = v; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
111 return &s; // { dg-warning "address of local variable 's' returned" }
112 }
113
114 int *
115 f15 ()
116 {
117 auto [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
118 return &s; // { dg-warning "address of local variable 's' returned" }
119 }
120
121 int *
122 f16 ()
123 {
124 int a[3] = {1, 2, 3};
125 auto [s, t, u] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } }
126 return &s; // { dg-warning "address of local variable 's' returned" }
127 }
128
129 int
130 main ()
131 {
132 if (&f1 () != &v.s || &f3 () != &a[0] || f9 () != &v.s || f11 () != &a[0])
133 __builtin_abort ();
134 }