Why doesn't this compile?
NSComparisonResult (^comp)( id<DKStorableObject>, id<DKStorableObject> ) = ^( id<DKStorableObject> a, id<DKStorableObject> b ) { if( a.index < b.index ) return NSOrderedAscending; else if ( a.index > b.index ) return NSOrderedDescending; else return NSOrderedSame; }; error: incompatible block pointer types initializing 'NSComparisonResult (^)(id<DKStorableObject>, id<DKStorableObject>)' with an expression of type 'int (^)(id<DKStorableObject>, id<DKStorableObject>)' Why does it assume that the return type is 'int"? There is nothing here that appears to suggest it is one. NSComparisonResult is a typedef of NSInteger. If I attempt to cast the result, I get an equally baffling error: error: invalid block pointer conversion initializing 'NSComparisonResult (^)(id<DKStorableObject>, id<DKStorableObject>)' with an expression of type 'NSComparisonResult' (aka 'long') I see there is a typedef for a generic comparator already, but I want to declare it as conforming to a protocol. Could the stupid block syntax be any less intuitive? --Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com