| 1 | // RUN: %clang_cc1 -std=c99 -Wmissing-field-initializers -Wmissing-braces -verify %s |
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| 2 | |
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| 3 | // Tests that using {0} in struct initialization or assignment is supported |
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| 4 | struct foo { int x; int y; }; |
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| 5 | struct bar { struct foo a; struct foo b; }; |
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| 6 | struct A { int a; }; |
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| 7 | struct B { struct A a; }; |
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| 8 | struct C { struct B b; }; |
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| 9 | struct D { struct C c; int n; }; |
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| 10 | |
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| 11 | int main(void) |
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| 12 | { |
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| 13 | struct foo f = { 0 }; // no-warning |
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| 14 | struct foo g = { 9 }; // expected-warning {{missing field 'y' initializer}} |
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| 15 | struct foo h = { 9, 9 }; // no-warning |
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| 16 | struct bar i = { 0 }; // no-warning |
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| 17 | struct bar j = { 0, 0 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'b' initializer}} |
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| 18 | struct bar k = { { 9, 9 }, { 9, 9 } }; // no-warning |
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| 19 | struct bar l = { { 9, 9 }, { 0 } }; // no-warning |
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| 20 | struct bar m = { { 0 }, { 0 } }; // no-warning |
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| 21 | struct bar n = { { 0 }, { 9, 9 } }; // no-warning |
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| 22 | struct bar o = { { 9 }, { 9, 9 } }; // expected-warning {{missing field 'y' initializer}} |
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| 23 | struct C p = { 0 }; // no-warning |
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| 24 | struct C q = { 9 }; // warning suppressed for struct with single element |
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| 25 | struct D r = { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}} |
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| 26 | f = (struct foo ) { 0 }; // no-warning |
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| 27 | g = (struct foo ) { 9 }; // expected-warning {{missing field 'y' initializer}} |
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| 28 | h = (struct foo ) { 9, 9 }; // no-warning |
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| 29 | i = (struct bar) { 0 }; // no-warning |
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| 30 | j = (struct bar) { 0, 0 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'b' initializer}} |
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| 31 | k = (struct bar) { { 9, 9 }, { 9, 9 } }; // no-warning |
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| 32 | l = (struct bar) { { 9, 9 }, { 0 } }; // no-warning |
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| 33 | m = (struct bar) { { 0 }, { 0 } }; // no-warning |
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| 34 | n = (struct bar) { { 0 }, { 9, 9 } }; // no-warning |
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| 35 | o = (struct bar) { { 9 }, { 9, 9 } }; // expected-warning {{missing field 'y' initializer}} |
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| 36 | p = (struct C) { 0 }; // no-warning |
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| 37 | q = (struct C) { 9 }; // warning suppressed for struct with single element |
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| 38 | r = (struct D) { 9 }; // expected-warning {{suggest braces around initialization of subobject}} expected-warning {{missing field 'n' initializer}} |
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| 39 | |
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| 40 | return 0; |
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| 41 | } |
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| 42 | |
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