user1502256
2020-12-03 17:11:32
The solution to this problem is actually not to add a static_cast as eerorika suggests but compiling the C code with a C compiler. There are a number of subtle differences between C and C++ that can lead to unexpected results, and the compiler won't catch them all. So even if you change all the type warnings you might still end up with broken code.
To ensure that you can call the C code from C++ you should mark the code as extern "C" inside the C headers like so:
#ifdef __cplusplus
extern "C" {
#endif
[your definitions]
#ifdef __cplusplus
}
#endif
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yes, I saw your comment in eerorika's answer and figure out I am supposed to use gcc for compiling darknet codes. I added
extern "C"around contents in box.h. that was the only change and it compiles ok. (g++ also sees the header so it doesn't mangle the name). Thanks.