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Create a static library

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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:


--- Code: ---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;
}
--- End code ---


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


--- Code: ---#include <iostream>

using namespace std;

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

I get an error:

--- Quote ---'SimpleAddInt' was not declared in this scope
--- End quote ---
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:

--- Quote from: oBFusCATed on February 09, 2010, 11:20:25 pm ---Yes, read/learn what a header file is/does.


--- End quote ---
And how to mix C and C++ sources/libs.

BlubBlub:

--- Quote from: oBFusCATed on February 09, 2010, 11:20:25 pm ---Yes, read/learn what a header file is/does.

--- End quote ---

I know what header files do.


--- Quote from: jens on February 09, 2010, 11:24:45 pm ---And how to mix C and C++ sources/libs.

--- End quote ---

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

I have a guess:


--- Code: ---#ifndef MAIN_H
#define MAIN_H

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

#endif

--- End code ---

It works, but is it that what you meant ?

Jenna:

--- Quote ---#ifdef __cplusplus
extern "C" {
#endif

--- End quote ---
at the top of the header and


--- Quote ---#ifdef __cplusplus
}
#endif

--- End quote ---
at the bottom.

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

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