text: #ifndef ISOPALINDROM_H_   /* Include guard */
  #define ISOPALINDROM_H_
  
  // static void usage(void);
  
  void check_palindrom(FILE **infiles, int in_len, FILE *outfile, int ignore_case, int ignore_whitespaces);
  int is_palindrom(char *str, int ignore_case, int ignore_whitespaces); 
  
  int main(int argc, char *argv[]);
  
  
  #endif // ISOPALINDROM_H_
  