Xcode 5中蘋果對多個系統框架及相關類庫進行了改進。以前創建的項目在Xcode 5中從新編譯會產生一些新問題。框架
JosnKit是經常使用的輕量級Josn解析類,在Xcode 5中:spa
BOOL workAroundMacOSXABIBreakingBug = (JK_EXPECT_F(((NSUInteger)object) &0x1)) ? YES : NO;.net
一行會提示以下警告:code
warning: bitmasking for introspection of Objective-C object pointers is strongly discouraged blog
雖然不影響使用,但有完美編譯強迫症的朋友能夠沒法這個黃色感嘆號。援引GitHub上一篇帖子,有以下修改方法:it
#pragma clang diagnostic pushio
#pragma clang diagnostic ignored"-Wdeprecated-objc-pointer-introspection"編譯
BOOL workAroundMacOSXABIBreakingBug = (JK_EXPECT_F(((NSUInteger)object) &0x1)) ? YES : NO;class
#pragma clang diagnostic popobject
轉自http://blog.csdn.net/vividloves/article/details/12186191