1#ifndef OUTPUT_H
 2#define OUTPUT_H
 3
 4extern int   _ocnt;
 5extern char *_optr;
 6
 7#define putch(ch)                                                                                  \
 8  do {                                                                                             \
 9    if (--_ocnt <= 0)                                                                              \
10      flush();                                                                                     \
11    *_optr++ = (ch);                                                                               \
12  } while (0)
13
14void  flush(void);
15void  nflush(void);
16int   fputch(int c);
17void  putline(char *s);
18void  cputline(char *s);
19void  prnum(long n);
20char *getnum(long n);
21
22#endif