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Asked: 2026-05-15T19:51:00+00:00

How can we use any C library inside our C++ code? (Can we? Any

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How can we use any C library inside our C++ code? (Can we? Any tuts on that?) (I use VS10 and now talking about libs such as x264 and OpenCV)

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  1. Editorial Team

    Well you can use any C library from your C++ code. That’s one the cool thing with C++ 🙂
    You just have to include the libraries headers in your C++ code and link with the libraries you use.

    Any good library handles its header inclusion from C++. If it is not the case you have to do it yourself with things like :

    #ifdef __cplusplus
extern "C" {
#endif

#include "c_header.h"

#ifdef __cplusplus
}
#endif

    Edit: As Mike said, the ifdef parts are only needed if you do not know if your file will be used with C or C++. You can keep them if the file is a header of an API header for example.

    By the way, opencv handles the inclusion by C or C++ (thus you already have the #ifdef part in opencv headers). I do not know for x264 …

    my2cents

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