[PATCH] D64600: [ObjC] Add an attribute that "clamps" signed char BOOLs to {0,1}
Erik Pilkington via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Jul 12 14:46:04 PDT 2019
erik.pilkington added inline comments.
================
Comment at: clang/include/clang/Basic/Attr.td:3279
+def ObjCClampingBool : TypeAttr {
+ let Spellings = [Clang<"objc_clamping_bool">];
+ let Subjects = SubjectList<[TypedefName]>;
----------------
aaron.ballman wrote:
> Is there a desire for similar functionality for C's `_Bool` datatype, or other, custom datatypes (perhaps `BOOL` from the Win32 APIs)? It seems like this attribute could be generalized to apply to any typedef to an integral type.
Sure, I guess there isn't anything Objective-C specific about this. The new patches renames it to `clamping_integral_bool` (and permits it on any integral type).
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D64600/new/
https://reviews.llvm.org/D64600
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