| 1 | // RUN: %clang_cc1 -fsyntax-only -Wunused -fdouble-square-bracket-attributes -verify %s |
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| 2 | |
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| 3 | struct [[maybe_unused]] S1 { // ok |
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| 4 | int a [[maybe_unused]]; |
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| 5 | }; |
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| 6 | |
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| 7 | enum [[maybe_unused]] E1 { |
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| 8 | EnumVal [[maybe_unused]] |
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| 9 | }; |
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| 10 | |
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| 11 | [[maybe_unused]] void unused_func([[maybe_unused]] int parm) { |
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| 12 | typedef int maybe_unused_int [[maybe_unused]]; |
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| 13 | [[maybe_unused]] int I; |
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| 14 | } |
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| 15 | |
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| 16 | void f1(void) { |
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| 17 | int x; // expected-warning {{unused variable}} |
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| 18 | typedef int I; // expected-warning {{unused typedef 'I'}} |
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| 19 | |
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| 20 | // Should not warn about these due to not being used. |
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| 21 | [[maybe_unused]] int y; |
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| 22 | typedef int maybe_unused_int [[maybe_unused]]; |
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| 23 | |
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| 24 | // Should not warn about these uses. |
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| 25 | struct S1 s; |
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| 26 | maybe_unused_int test; |
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| 27 | y = 12; |
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| 28 | } |
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| 29 | |
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| 30 | void f2(void); |
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| 31 | [[maybe_unused]] void f2(void); |
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| 32 | |
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| 33 | void f2(void) { |
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| 34 | } |
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| 35 | |
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| 36 | |
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