================
@@ -477,3 +477,10 @@ namespace P2361 {
}
alignas(int) struct AlignAsAttribute {}; // expected-error {{misplaced
attributes; expected attributes here}}
+
+namespace GH147217 {
+ [[clang::annotate(#)]] void a(); // expected-error {{'#' is not allowed
in an attribute argument list}}
----------------
AaronBallman wrote:
Can you add a test that shows we still accept this in C?
Also, can you add a test showing that the operators still work in a
preprocessor context? e.g.,
```
#define ATTR_STR(X) [[clang::annotate(#X)]]
#define ATTR_PASTE(X, Y) [[clang::annotate("test", X ## Y)]]
ATTR_STR(stringify) void func1();
ATTR_PASTE(1, 2) void func2();
```
(This should probably be a `-E` test so we can validate the expected output of
the preprocessor operations.)
https://github.com/llvm/llvm-project/pull/147308
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