// include guards: prevents the header from being included twice in a single .c file
#ifndef __C_HEADER_1_H__
#define __C_HEADER_1_H__

// do not worry about typedef right now, we will cover it later in the semester
// this is just something you might see in a header
typedef int Number;

// this static function will cause errors if included
static int return_int(int i) {
    return i;
}

#endif /* endif for __C_HEADER_1_H__ */