[PATCH] D133502: [ADT] Mark `llvm::array_lengthof` as deprecated

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

In D133502#3781560 <https://reviews.llvm.org/D133502#3781560>, @mstorsjo wrote:

> This produces a warning when built with GCC for every single source file that includes the header:
>
>   ../include/llvm/Support/Compiler.h:145:35: warning: attribute ignored [-Wattributes]  
>     145 | #define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
>         |                                   ^
>   ../include/llvm/ADT/STLArrayExtras.h:31:18: note: in expansion of macro ‘LLVM_DEPRECATED’        
>      31 | constexpr inline LLVM_DEPRECATED("Use std::size instead.", "std::size") size_t
>         |                  ^~~~~~~~~~~~~~~
>   ../include/llvm/Support/Compiler.h:145:35: note: an attribute that appertains to a type-specifier is ignored              
>     145 | #define LLVM_DEPRECATED(MSG, FIX) [[deprecated(MSG)]]
>         |                                   ^
>   ../include/llvm/ADT/STLArrayExtras.h:31:18: note: in expansion of macro ‘LLVM_DEPRECATED’
>      31 | constexpr inline LLVM_DEPRECATED("Use std::size instead.", "std::size") size_t
>         |                  ^~~~~~~~~~~~~~~

Should be fixed now. The placement before `Placement of LLVM_DEPRECATED matters` was actually correct for `[[deprecated(...)]]` :)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133502/new/

https://reviews.llvm.org/D133502