874217f99b
This also ignores and deprecates the `-fdouble-square-bracket-attributes` command line flag, which seems to not be used anywhere. At least a code search exclusively found mentions of it in documentation: https://sourcegraph.com/search?q=context:global+-fdouble-square-bracket-attributes+-file:clang/*+-file:test/Sema/*+-file:test/Parser/*+-file:test/AST/*+-file:test/Preprocessor/*+-file:test/Misc/*+archived:yes&patternType=standard&sm=0&groupBy=repo RFC: https://discourse.llvm.org/t/rfc-enable-c-11-c2x-attributes-in-all-standard-modes-as-an-extension-and-remove-fdouble-square-bracket-attributes This enables `[[]]` attributes in all C and C++ language modes without warning by default. `-Wc++-extensions` does warn. GCC has enabled this extension in all C modes since GCC 10. Reviewed By: aaron.ballman, MaskRay Spies: #clang-vendors, beanz, JDevlieghere, Michael137, MaskRay, sstefan1, jplehr, cfe-commits, lldb-commits, dmgreen, jdoerfert, wenlei, wlei Differential Revision: https://reviews.llvm.org/D151683
19 lines
1.1 KiB
C
19 lines
1.1 KiB
C
// RUN: %clang_cc1 %s -fsyntax-only -verify
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void __attribute__((annotate("foo"))) foo(float *a) {
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__attribute__((annotate("bar"))) int x;
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[[clang::annotate("bar")]] int x2;
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__attribute__((annotate(1))) int y; // expected-error {{'annotate' attribute requires a string}}
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[[clang::annotate(1)]] int y2; // expected-error {{'annotate' attribute requires a string}}
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__attribute__((annotate("bar", 1))) int z;
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[[clang::annotate("bar", 1)]] int z2;
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int u = __builtin_annotation(z, (char*) 0); // expected-error {{second argument to __builtin_annotation must be a non-wide string constant}}
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int v = __builtin_annotation(z, (char*) L"bar"); // expected-error {{second argument to __builtin_annotation must be a non-wide string constant}}
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int w = __builtin_annotation(z, "foo");
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float b = __builtin_annotation(*a, "foo"); // expected-error {{first argument to __builtin_annotation must be an integer}}
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__attribute__((annotate())) int c; // expected-error {{'annotate' attribute takes at least 1 argument}}
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[[clang::annotate()]] int c2; // expected-error {{'annotate' attribute takes at least 1 argument}}
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}
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