| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
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| 2 | // PR3459 |
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| 3 | struct bar { |
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| 4 | char n[1]; |
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| 5 | }; |
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| 6 | |
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| 7 | struct foo { |
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| 8 | char name[(int)&((struct bar *)0)->n]; |
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| 9 | char name2[(int)&((struct bar *)0)->n - 1]; //expected-error{{'name2' declared as an array with a negative size}} |
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| 10 | }; |
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| 11 | |
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| 12 | // PR3430 |
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| 13 | struct s { |
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| 14 | struct st { |
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| 15 | int v; |
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| 16 | } *ts; |
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| 17 | }; |
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| 18 | |
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| 19 | struct st; |
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| 20 | |
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| 21 | int foo() { |
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| 22 | struct st *f; |
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| 23 | return f->v + f[0].v; |
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| 24 | } |
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| 25 | |
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| 26 | // PR3642, PR3671 |
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| 27 | struct pppoe_tag { |
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| 28 | short tag_type; |
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| 29 | char tag_data[]; |
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| 30 | }; |
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| 31 | struct datatag { |
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| 32 | struct pppoe_tag hdr; //expected-warning{{field 'hdr' with variable sized type 'struct pppoe_tag' not at the end of a struct or class is a GNU extension}} |
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| 33 | char data; |
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| 34 | }; |
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| 35 | |
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| 36 | |
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| 37 | // PR4092 |
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| 38 | struct s0 { |
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| 39 | char a; // expected-note {{previous declaration is here}} |
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| 40 | char a; // expected-error {{duplicate member 'a'}} |
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| 41 | }; |
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| 42 | |
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| 43 | struct s0 f0(void) {} |
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| 44 | |
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| 45 | // <rdar://problem/8177927> - This previously triggered an assertion failure. |
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| 46 | struct x0 { |
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| 47 | unsigned int x1; |
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| 48 | }; |
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| 49 | |
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| 50 | // rdar://problem/9150338 |
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| 51 | static struct test1 { // expected-warning {{'static' ignored on this declaration}} |
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| 52 | int x; |
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| 53 | }; |
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| 54 | const struct test2 { // expected-warning {{'const' ignored on this declaration}} |
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| 55 | int x; |
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| 56 | }; |
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| 57 | inline struct test3 { // expected-error {{'inline' can only appear on functions}} |
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| 58 | int x; |
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| 59 | }; |
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| 60 | |
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| 61 | struct hiding_1 {}; |
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| 62 | struct hiding_2 {}; |
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| 63 | void test_hiding() { |
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| 64 | struct hiding_1 *hiding_1(); |
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| 65 | extern struct hiding_2 *hiding_2; |
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| 66 | struct hiding_1 *p = hiding_1(); |
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| 67 | struct hiding_2 *q = hiding_2; |
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| 68 | } |
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| 69 | |
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| 70 | struct PreserveAttributes {}; |
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| 71 | typedef struct __attribute__((noreturn)) PreserveAttributes PreserveAttributes_t; // expected-warning {{'noreturn' attribute only applies to functions and methods}} |
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| 72 | |
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