Create a static library

[BlubBlub]

hey guys (:

I use the wizard for creating a static library.
In the main.c file there is a little sample which I compiled:

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int SampleAddInt(int i1, int i2)
{
    return i1 + i2;
}

// A function doing nothing ;)
void SampleFunction1()
{
    // insert code here
}

// A function always returning zero
int SampleFunction2()
{
    // insert code here
   
    return 0;
}


I tried it and it worked ( I got a .a file ) But when I want to use it in a project like:

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#include <iostream>

using namespace std;

int main()
{
cout << SampleAddInt ( 12, 14 ) << endl ;
}

I get an error:

'SimpleAddInt' was not declared in this scope

I linked the .a file, but it didn´t work. :S

Can somebody help me ?

[oBFusCATed]

Yes, read/learn what a header file is/does.

[Jenna]

Yes, read/learn what a header file is/does.

And how to mix C and C++ sources/libs.

[BlubBlub]

Yes, read/learn what a header file is/does.

I know what header files do.

And how to mix C and C++ sources/libs.

Do you mean extern "C" ?
Can you be more specific ? 

I have a guess:

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#ifndef MAIN_H
#define MAIN_H

extern "C"
int SampleAddInt(int, int ) ;

#endif


It works, but is it that what you meant ?

[Jenna]

#ifdef __cplusplus
extern "C" {
#endif

at the top of the header and

#ifdef __cplusplus
}
#endif

at the bottom.

So you can use the same header with C and C++-sources.

[BlubBlub]

thanks jens for your help