John McCall | 626e96e | 2010-08-01 20:20:59 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -Wglobal-constructors %s -verify |
| 2 | |
| 3 | int opaque_int(); |
| 4 | |
| 5 | namespace test0 { |
| 6 | // These should never require global constructors. |
| 7 | int a; |
| 8 | int b = 20; |
| 9 | float c = 5.0f; |
| 10 | |
| 11 | // This global constructor is avoidable based on initialization order. |
| 12 | int d = b; // expected-warning {{global constructor}} |
| 13 | |
| 14 | // These global constructors are unavoidable. |
| 15 | int e = opaque_int(); // expected-warning {{global constructor}} |
| 16 | int f = b; // expected-warning {{global constructor}} |
| 17 | } |
| 18 | |
| 19 | namespace test1 { |
| 20 | struct A { int x; }; |
| 21 | A a; |
| 22 | A b = A(); |
| 23 | A c = { 10 }; |
| 24 | A d = { opaque_int() }; // expected-warning {{global constructor}} |
John McCall | 4204f07 | 2010-08-02 21:13:48 +0000 | [diff] [blame] | 25 | A e = A(A()); |
| 26 | A f = A(a); // expected-warning {{global constructor}} |
| 27 | A g(a); // expected-warning {{global constructor}} |
| 28 | A h((A())); // expected-warning {{global constructor}} |
| 29 | A i((A(A()))); // expected-warning {{global constructor}} |
John McCall | 626e96e | 2010-08-01 20:20:59 +0000 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | namespace test2 { |
| 33 | struct A { A(); }; |
| 34 | A a; // expected-warning {{global constructor}} |
| 35 | A b[10]; // expected-warning {{global constructor}} |
| 36 | A c[10][10]; // expected-warning {{global constructor}} |
John McCall | b4b9b15 | 2010-08-01 21:51:45 +0000 | [diff] [blame] | 37 | |
John McCall | 4204f07 | 2010-08-02 21:13:48 +0000 | [diff] [blame] | 38 | A &d = a; |
| 39 | A &e = b[5]; |
| 40 | A &f = c[5][7]; |
John McCall | 626e96e | 2010-08-01 20:20:59 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | namespace test3 { |
| 44 | struct A { ~A(); }; |
| 45 | A a; // expected-warning {{global destructor}} |
| 46 | A b[10]; // expected-warning {{global destructor}} |
| 47 | A c[10][10]; // expected-warning {{global destructor}} |
John McCall | b4b9b15 | 2010-08-01 21:51:45 +0000 | [diff] [blame] | 48 | |
John McCall | 4204f07 | 2010-08-02 21:13:48 +0000 | [diff] [blame] | 49 | A &d = a; |
| 50 | A &e = b[5]; |
| 51 | A &f = c[5][7]; |
John McCall | b4b9b15 | 2010-08-01 21:51:45 +0000 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | namespace test4 { |
| 55 | char a[] = "hello"; |
| 56 | char b[5] = "hello"; |
| 57 | char c[][5] = { "hello" }; |
John McCall | 626e96e | 2010-08-01 20:20:59 +0000 | [diff] [blame] | 58 | } |
Anders Carlsson | 4938f23 | 2010-09-03 01:11:38 +0000 | [diff] [blame^] | 59 | |
| 60 | namespace test5 { |
| 61 | struct A { A(); }; |
| 62 | |
| 63 | void f1() { |
| 64 | static A a; |
| 65 | } |
| 66 | void f2() { |
| 67 | static A& a = *new A; |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | namespace test6 { |
| 72 | struct A { ~A(); }; |
| 73 | |
| 74 | void f1() { |
| 75 | static A a; // expected-warning {{global destructor}} |
| 76 | } |
| 77 | void f2() { |
| 78 | static A& a = *new A; |
| 79 | } |
| 80 | |
| 81 | } |