Xcode：C++：在项目中包含库

Question

How do I create a new project in Xcode and use this library libStanfordCPPlib.a As you see in the img, I have the library file in my project folder. Yet I can not include any of its classes / functions.

Answer 1

您需要链接 lib 文件，找到 libStanfordCPPLib.a 的路径名，然后单击左侧面板上的“Assignment2”项，然后找到 build-phase 选项卡，然后搜索 Use Lib Path 然后将库文件夹路径粘贴到那里.

Answer 2

have you #included the header? have you selected the library in link binary with libraries? is the header search path valid? if the error is that the compiler cant include the header, it will be a header path problem. if the error is at linking, you havent added the library correctly.

Answer 3

I had a similar problem.

Right click on the .a file (libStanfordCPPLib.a) and select "Show File Inspector"

In the "Inspector" window, press the "Localize" button.

I'm not sure, honestly, what this did different, so if anyone can explain that, go for it.

I'll say that in my case, the .a file seemed to be localized already, and all references seemed to be set right.

How did I get to the state that I was in just before the Localize button worked? Right click on the Project ("Projectx").
In the menu, click on "Add files to 'Projectx')..." I selected Destination check box (checked) to copy files into destination folder if needed. I chose "Create folder references for any added folders" I chose "add to targets: Projectx"

That's about it. my header file referenced in the .a kept failing. Then I clicked the "Localize" button mentioned above and it all worked.