Method c_fns

crates/c/src/lib.rs:4183–4185

(&mut self, s: &str)

        self.h_helpers.push_str(s);
    }
    fn c_fns(&mut self, s: &str) {
        self.c_fns.push_str(s);
    }
    fn c_helpers(&mut self, s: &str) {
        self.c_helpers.push_str(s);
    }