zoukankan
html css js c++ java
ARC专题:编写兼容ARC(自动引用计数) 和 nonARC(非自动引用计数)的通用代码
下面这段宏可以解决这个问题,而不用同时编写2套代码
写法用传统的non-ARC写法
http://raptureinvenice.com/arc-support-without-branches/
// // ARCMacros.h // InnerBand // // For an explanation of why these work, see: // // http://raptureinvenice.com/arc-support-without-branches/ // // Created by John Blanco on 1/28/12. // Rapture In Venice releases all rights to this code. Feel free use and/or copy it openly and freely! // // NOTE: __bridge_tranfer is not included here because releasing would be inconsistent. // Avoid it unless you're using ARC exclusively or managing it with __has_feature(objc_arc). // #if !defined(__clang__) || __clang_major__ < 3 #ifndef __bridge #define __bridge #endif #ifndef __bridge_retain #define __bridge_retain #endif #ifndef __bridge_retained #define __bridge_retained #endif #ifndef __autoreleasing #define __autoreleasing #endif #ifndef __strong #define __strong #endif #ifndef __unsafe_unretained #define __unsafe_unretained #endif #ifndef __weak #define __weak #endif #endif #if __has_feature(objc_arc) #define SAFE_ARC_PROP_RETAIN strong #define SAFE_ARC_RETAIN(x) (x) #define SAFE_ARC_RELEASE(x) #define SAFE_ARC_AUTORELEASE(x) (x) #define SAFE_ARC_BLOCK_COPY(x) (x) #define SAFE_ARC_BLOCK_RELEASE(x) #define SAFE_ARC_SUPER_DEALLOC() #define SAFE_ARC_AUTORELEASE_POOL_START() @autoreleasepool { #define SAFE_ARC_AUTORELEASE_POOL_END() } #else #define SAFE_ARC_PROP_RETAIN retain #define SAFE_ARC_RETAIN(x) ([(x) retain]) #define SAFE_ARC_RELEASE(x) ([(x) release]) #define SAFE_ARC_AUTORELEASE(x) ([(x) autorelease]) #define SAFE_ARC_BLOCK_COPY(x) (Block_copy(x)) #define SAFE_ARC_BLOCK_RELEASE(x) (Block_release(x)) #define SAFE_ARC_SUPER_DEALLOC() ([super dealloc]) #define SAFE_ARC_AUTORELEASE_POOL_START() NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; #define SAFE_ARC_AUTORELEASE_POOL_END() [pool release]; #endif
查看全文
相关阅读:
HTML5 postMessage 和 onmessage API 详细应用
layerX
HTML5中createPattern()
HTML5中lineCap端点样式遇到closePath()
[转]Modernizr的介绍和使用
HTML5学习之路
javascript选取文档元素
ie不支持getElementsByClassName的解决办法
document.images、document.forms、doucument.links——>HTMLCollection
JavaScript 参考手册——javascript本地和内置对象、BOM、DOM
原文地址:https://www.cnblogs.com/javawebsoa/p/2458446.html
最新文章
十大排序算法之(四)——插入排序
十大排序算法之(三)——选择排序
十大排序算法之(二)——冒泡排序
十大算法系列之(一)——快速排序
CISP/CISA 每日一题 15
ODBC总结
性能调优攻略
CISP/CISA 每日一题 14
CISP/CISA 每日一题 13
C#调用带结构体指针的C Dll的方法
热门文章
CISP/CISA 每日一题 12
Unity实现发送QQ邮件功能
CISP/CISA 每日一题 11
unity-unet-同步各个player唯一标识
unity3d 数据加/解密
C#调用C++数组,结构体DLL
使用Multiplayer Networking做一个简单的多人游戏例子-1/2(换一种方法)
CISP/CISA 每日一题 10
[转]使用 HTML5 IndexedDB API
[转]HTML5本地存储——Web SQL Database
Copyright © 2011-2022 走看看