C++庫引用
Build Settings -> Search paths -> System Header Search Paths
在Debug和Release添加
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/
Build Settings -> Search paths -> System Header Search Paths
在Debug和Release添加
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/