XCode项目中同时包含C和C ++文件失败

Question

I'm trying to use information from a sqlite database in my C++ project. I downloaded the sqlite amalgamation and added sqlite3.h and sqlite3.c to my project, and added #include "sqlite3.h" to my precompiled header file.

However, Xcode no longer finds standard headers such as algorithm , cassert , cfloat , etc. The specific error is this:

Lexical or Preprocessor Issue - 'algorithm' file not found

If I remove the two sqlite files from the project, the headers can be found again. If I rename the sqlite3.c file to a .cpp file, the headers are also found again. Removing #include "sqlite3.h" does not change anything.

However, I can't leave it as a .cpp file because it gives errors since it uses some things that don't seem to be compatible with C++.

Is there a way to have both C and C++ files in the same XCode project? (Or another way to include the sqlite library?)

Answer 1

To get things to work, I had to enclose my all of my #include s with an #ifdef __cplusplus and endif . I don't quite know all of the mechanics behind why.