| 1 | // RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s |
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| 2 | struct one { |
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| 3 | int a; |
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| 4 | int values[]; // expected-note 4{{initialized flexible array member 'values' is here}} |
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| 5 | } x = {5, {1, 2, 3}}; // expected-warning{{flexible array initialization is a GNU extension}} |
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| 6 | |
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| 7 | struct one x2 = { 5, 1, 2, 3 }; // expected-warning{{flexible array initialization is a GNU extension}} |
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| 8 | |
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| 9 | void test() { |
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| 10 | struct one x3 = {5, {1, 2, 3}}; // expected-error{{initialization of flexible array member is not allowed}} |
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| 11 | struct one x3a = { 5 }; |
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| 12 | struct one x3b = { .a = 5 }; |
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| 13 | struct one x3c = { 5, {} }; // expected-warning{{use of GNU empty initializer extension}} \ |
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| 14 | // expected-warning{{flexible array initialization is a GNU extension}} \ |
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| 15 | // expected-warning{{zero size arrays are an extension}} |
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| 16 | } |
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| 17 | |
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| 18 | struct foo { |
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| 19 | int x; |
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| 20 | int y[]; // expected-note 8 {{initialized flexible array member 'y' is here}} |
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| 21 | }; |
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| 22 | struct bar { struct foo z; }; // expected-warning {{'z' may not be nested in a struct due to flexible array member}} |
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| 23 | |
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| 24 | struct foo a = { 1, { 2, 3, 4 } }; // expected-warning{{flexible array initialization is a GNU extension}} |
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| 25 | struct bar b = { { 1, { 2, 3, 4 } } }; // expected-error{{initialization of flexible array member is not allowed}} |
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| 26 | struct bar c = { { 1, { } } }; // // expected-warning{{flexible array initialization is a GNU extension}} \ |
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| 27 | // expected-warning{{use of GNU empty initializer extension}} \ |
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| 28 | // expected-warning{{zero size arrays are an extension}} |
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| 29 | struct foo d[1] = { { 1, { 2, 3, 4 } } }; // expected-warning{{'struct foo' may not be used as an array element due to flexible array member}} \ |
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| 30 | // expected-error{{initialization of flexible array member is not allowed}} |
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| 31 | |
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| 32 | struct foo desig_foo = { .y = {2, 3, 4} }; // expected-warning{{flexible array initialization is a GNU extension}} |
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| 33 | struct bar desig_bar = { .z.y = { } }; // expected-warning{{use of GNU empty initializer extension}} \ |
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| 34 | // expected-warning{{zero size arrays are an extension}} \ |
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| 35 | // expected-warning{{flexible array initialization is a GNU extension}} |
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| 36 | struct bar desig_bar2 = { .z.y = { 2, 3, 4} }; // expected-error{{initialization of flexible array member is not allowed}} |
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| 37 | struct foo design_foo2 = { .y = 2 }; // expected-error{{flexible array requires brace-enclosed initializer}} |
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| 38 | |
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| 39 | struct point { |
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| 40 | int x, y; |
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| 41 | }; |
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| 42 | |
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| 43 | struct polygon { |
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| 44 | int numpoints; |
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| 45 | struct point points[]; // expected-note{{initialized flexible array member 'points' is here}} |
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| 46 | }; |
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| 47 | struct polygon poly = { |
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| 48 | .points[2] = { 1, 2} }; // expected-error{{designator into flexible array member subobject}} |
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| 49 | |
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| 50 | // PR3540 |
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| 51 | struct X { |
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| 52 | int a; |
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| 53 | int b; |
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| 54 | char data[]; |
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| 55 | }; |
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| 56 | |
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| 57 | struct Y { |
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| 58 | int a:4; |
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| 59 | int b:4; |
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| 60 | int c; |
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| 61 | int d; |
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| 62 | int e; |
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| 63 | struct X xs[]; // expected-warning{{'struct X' may not be used as an array element due to flexible array member}} |
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| 64 | }; |
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| 65 | |
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| 66 | |
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| 67 | // PR8217 |
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| 68 | struct PR8217a { |
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| 69 | int i; |
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| 70 | char v[]; // expected-note 2 {{initialized flexible array member 'v' is here}} |
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| 71 | }; |
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| 72 | |
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| 73 | void PR8217() { |
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| 74 | struct PR8217a foo1 = { .i = 0, .v = "foo" }; // expected-error {{initialization of flexible array member is not allowed}} |
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| 75 | struct PR8217a foo2 = { .i = 0 }; |
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| 76 | struct PR8217a foo3 = { .i = 0, .v = { 'b', 'a', 'r', '\0' } }; // expected-error {{initialization of flexible array member is not allowed}} |
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| 77 | struct PR8217a bar; |
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| 78 | } |
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| 79 | |
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| 80 | typedef struct PR10648 { |
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| 81 | unsigned long n; |
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| 82 | int v[]; // expected-note {{initialized flexible array member 'v' is here}} |
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| 83 | } PR10648; |
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| 84 | int f10648() { |
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| 85 | return (PR10648){2, {3, 4}}.v[1]; // expected-error {{initialization of flexible array member is not allowed}} |
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| 86 | } |
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| 87 | |
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| 88 | struct FlexWithUnnamedBitfield { int : 10; int x; int y[]; }; // expected-note {{initialized flexible array member 'y' is here}} |
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| 89 | void TestFlexWithUnnamedBitfield() { |
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| 90 | struct FlexWithUnnamedBitfield x = {10, {3}}; // expected-error {{initialization of flexible array member is not allowed}} |
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| 91 | } |
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| 92 | |
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