Daniel Dunbar | a572887 | 2009-12-15 20:14:24 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
Douglas Gregor | 6c6fce0 | 2009-01-05 19:50:09 +0000 | [diff] [blame] | 2 | extern "C" { |
| 3 | extern "C" void f(int); |
| 4 | } |
| 5 | |
| 6 | extern "C++" { |
| 7 | extern "C++" int& g(int); |
| 8 | float& g(); |
| 9 | } |
| 10 | double& g(double); |
| 11 | |
| 12 | void test(int x, double d) { |
| 13 | f(x); |
| 14 | float &f1 = g(); |
| 15 | int& i1 = g(x); |
| 16 | double& d1 = g(d); |
| 17 | } |
Douglas Gregor | 17a9b9e | 2009-01-07 02:48:43 +0000 | [diff] [blame] | 18 | |
| 19 | extern "C" int foo; |
| 20 | extern "C" int foo; |
| 21 | |
| 22 | extern "C" const int bar; |
| 23 | extern "C" int const bar; |
Anders Carlsson | 425bfde | 2009-05-16 22:05:23 +0000 | [diff] [blame] | 24 | |
| 25 | // <rdar://problem/6895431> |
| 26 | extern "C" struct bar d; |
| 27 | extern struct bar e; |
Douglas Gregor | a24eb4e | 2009-08-24 18:55:03 +0000 | [diff] [blame] | 28 | |
| 29 | extern "C++" { |
| 30 | namespace N0 { |
| 31 | struct X0 { |
| 32 | int foo(int x) { return x; } |
| 33 | }; |
| 34 | } |
Daniel Dunbar | 4fcfde4 | 2009-11-08 01:45:36 +0000 | [diff] [blame] | 35 | } |
Sebastian Redl | 9770ef0 | 2009-11-08 11:36:54 +0000 | [diff] [blame] | 36 | |
| 37 | // PR5430 |
| 38 | namespace pr5430 { |
| 39 | extern "C" void func(void); |
| 40 | } |
| 41 | using namespace pr5430; |
| 42 | extern "C" void pr5430::func(void) { } |
Douglas Gregor | 1237259 | 2009-12-08 15:38:36 +0000 | [diff] [blame] | 43 | |
| 44 | // PR5404 |
| 45 | int f2(char *) |
| 46 | { |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | extern "C" |
| 51 | { |
| 52 | int f2(int) |
| 53 | { |
| 54 | return f2((char *)0); |
| 55 | } |
| 56 | } |
Abramo Bagnara | 35f9a19 | 2010-07-30 16:47:02 +0000 | [diff] [blame] | 57 | |
| 58 | // PR6991 |
| 59 | extern "C" typedef int (*PutcFunc_t)(int); |
John McCall | 7b49202 | 2010-08-12 07:09:11 +0000 | [diff] [blame] | 60 | |
| 61 | |
| 62 | // PR7859 |
| 63 | extern "C" void pr7859_a(int) {} // expected-note {{previous definition}} |
| 64 | extern "C" void pr7859_a(int) {} // expected-error {{redefinition}} |
| 65 | |
| 66 | extern "C" void pr7859_b() {} // expected-note {{previous definition}} |
| 67 | extern "C" void pr7859_b(int) {} // expected-error {{conflicting}} |
| 68 | |
| 69 | extern "C" void pr7859_c(short) {} // expected-note {{previous definition}} |
| 70 | extern "C" void pr7859_c(int) {} // expected-error {{conflicting}} |
Douglas Gregor | 4597553 | 2010-08-17 16:09:23 +0000 | [diff] [blame] | 71 | |
| 72 | // <rdar://problem/8318976> |
| 73 | extern "C" { |
| 74 | struct s0 { |
| 75 | private: |
| 76 | s0(); |
| 77 | s0(const s0 &); |
| 78 | }; |
| 79 | } |
Douglas Gregor | 09a63c9 | 2010-08-24 14:14:45 +0000 | [diff] [blame] | 80 | |
| 81 | //PR7754 |
| 82 | extern "C++" template <class T> int pr7754(T param); |
| 83 | |
| 84 | namespace N { |
| 85 | int value; |
| 86 | } |
| 87 | |
| 88 | extern "C++" using N::value; |
Douglas Gregor | 66c42d4 | 2010-10-15 01:21:46 +0000 | [diff] [blame] | 89 | |
| 90 | // PR7076 |
| 91 | extern "C" const char *Version_string = "2.9"; |
Douglas Gregor | 6d0468b | 2011-10-09 22:57:49 +0000 | [diff] [blame] | 92 | |
Rafael Espindola | b6bead4 | 2013-03-29 07:02:31 +0000 | [diff] [blame] | 93 | extern "C" { |
| 94 | extern const char *Version_string2 = "2.9"; |
| 95 | } |
| 96 | |
Douglas Gregor | 6d0468b | 2011-10-09 22:57:49 +0000 | [diff] [blame] | 97 | namespace PR9162 { |
| 98 | extern "C" { |
| 99 | typedef struct _ArtsSink ArtsSink; |
| 100 | struct _ArtsSink { |
| 101 | int sink; |
| 102 | }; |
| 103 | } |
| 104 | int arts_sink_get_type() |
| 105 | { |
| 106 | return sizeof(ArtsSink); |
| 107 | } |
| 108 | } |
Rafael Espindola | b98cf79 | 2013-05-05 18:24:05 +0000 | [diff] [blame] | 109 | |
| 110 | namespace pr14958 { |
| 111 | namespace js { extern int ObjectClass; } |
| 112 | extern "C" { |
| 113 | namespace js {} |
| 114 | } |
| 115 | int js::ObjectClass; |
| 116 | } |