在iOS项目中添加C ++库无法正确编译

Question

In my iOS project I need to use a C++ library consisting in some header (.h) files and a .a library file (I don't have any actual source code).

In my Obj-c code I imported the .h header that I need, however Xcode doesn't seem to understand it has to interpret the header as c++, in fact it returns an endless list of issues including "not found" errors on inclusions like theese:

#include <string>
#include <vector>

and other c++ language-specific syntax. Unfortunately changing the .h extension to .hpp doesn't solve the issue, and neither setting the file type to "C++ Header" in the Xcode file inspector does.

Any suggestion? Is there any flag I need to set somewhere to manually indicate to use g++ on the library files? Thanks.

Answer 1

您只能在Objective-C ++文件中导入C ++头文件，将objc文件扩展名更改为.mm 。

Answer 2

change your objectiveC-file extension from .m to .mm Clean the project then there you go

happy coding