function call from header

[hansO]

Hi,

i've got These 3 files:

// OTI.h
extern void Unpack(void* Packet);

// PackUnpack.cpp
#include "OptiTrackInterface.h"

void Unpack(void* Packet)
{
...
}

// OTI.cpp
#include "OptiTrackInterface.h"

Unpack((char*) &indata);

When i try to compile OTI.cpp, i got the error that Unpack is undeclared.
I'm not familiar with C++... this might be a beginners mistake.

[MiiNiPaa]

1) You do not need extern in your header.
2) Why are you casting to char* when function accepts void*?
3) I hope call to function is in some function and not in global space
4) Did you include OTI.h in your OTI.cpp?
5) Did you compile PackUnpack.cpp alongside OTI.cpp?

[hansO]

1) Probably not
2) indata is a packet divided in Byte sections. Do i have to change declaration?
3) You mean OTI.cpp - then yes
4) yes
5) yes