ARC Helper
来源：互联网 发布：windows更新大小 编辑：程序博客网 时间：2024/06/03 22:51
转自：
http://www.cnblogs.com/kiss007/archive/2012/09/26/2704019.html
//ARC Helper
#ifndef WS_SUPPORT_ARC
#define WS_SUPPORT_ARC#if __has_feature(objc_arc_weak) //objc_arc_weak#define WS_WEAK weak#define __WS_WEAK __weak#define WS_STRONG strong#define WS_AUTORELEASE self#define WS_RELEASE self#define WS_RETAIN self#define WS_CFTYPECAST(exp) (__bridge exp)#define WS_TYPECAST(exp) (__bridge_transfer exp)#define WS_CFRELEASE(exp) CFRelease(exp)#define WS_DEALLOC self#elif __has_feature(objc_arc) //objc_arc#define WS_WEAK unsafe_unretained#define __WS_WEAK __unsafe_unretained#define WS_STRONG strong#define WS_AUTORELEASE self#define WS_RELEASE self#define WS_RETAIN self#define WS_CFTYPECAST(exp) (__bridge exp)#define WS_TYPECAST(exp) (__bridge_transfer exp)#define WS_CFRELEASE(exp) CFRelease(exp)#define WS_DEALLOC self#else //none#define WS_WEAK assign#define __WS_WEAK#define WS_STRONG retain#define WS_AUTORELEASE autorelease#define WS_RELEASE release#define WS_RETAIN retain#define WS_CFTYPECAST(exp) (exp)#define WS_TYPECAST(exp) (exp)#define WS_CFRELEASE(exp) CFRelease(exp)#define WS_DEALLOC dealloc#define __bridge#endif//__has_feature#endif//WS_SUPPORT_ARC//ARC Helper
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