Using C/C++ static libraries from iPhone ObjectiveC Apps

#ifdef __cplusplus
extern "C"
#endif
void show_the_world(void);

#include <iostream>
#include "stw.h"
using namespace std;

extern "C" void show_the_world() {
  cout << "Hello, world!n";
}

$ g++ -c stw.cpp -o stw.cpp -O0 -g
$ ar rcs stw.a stw.o

#include "stw.h"

int main() {
  show_the_world();
  return 0;
}

$ gcc -o myapp myapp.c stw.a -lstdc++ -g -O0
$ ./myapp
Hello, world!
$

#ifndef HEADER_GUARD_1_H
#define HEADER_GUARD_1_H

#ifdef __cplusplus
extern "C" {
#endif

// Declare C function interface here.
int myFunc(int x,char*);

#ifdef __cplusplus
}
#endif

#endif