#include <aikido.h>
extern "C" {       // need C linkage

// define the function using a macro defined in aikido.h
AIKIDO_NATIVE(strdup) {
    aikido::string *s = paras[0].str;
    char *p = strdup (s->c_str());
    aikido::string *result = new aikido::string(p);
    free (p);
    return result;
}

}