在工程里面怎么兼容arc和非arc的文件(转)
苹果文档Transitioning to ARC Release Notes里描述了好几种处理arc和非arc情况的方法,我遇到的情况是需要在一个非arc的工程里载入一个同步twitter的库,而该库是使用arc模式的文件。为了使两者兼容,我采用如下方法,顺利通过编译:
Use Compiler Flags to Enable and Disable ARC
You enable ARC using a new -fobjc-arc compiler flag. You can also choose to use ARC on a per-file basis if it’s more convenient for you to use manual reference counting for some files. For projects that employ ARC as the default approach, you can disable ARC for a specific file using a new-fno-objc-arc compiler flag for that file.
ARC is supported in Xcode 4.2 for Mac OS X v10.6 and v10.7 (64-bit applications) and for iOS 4 and iOS 5. Weak references are not supported in Mac OS X v10.6 and iOS 4. There is no ARC support in Xcode 4.1 and earlier.
操作截图:
这种在xcode中设置文件的编译方式的方法,觉得还是挺方便的。
其他方式可以查阅文档的该部分,就不列举了。
转自:http://blog.****.net/likendsl/article/details/7711887
转载于:https://www.cnblogs.com/yingkong1987/archive/2012/09/05/2672544.html