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#ifndef SUBSTDIO_H
#define SUBSTDIO_H
typedef struct substdio {
char *x;
int p;
int n;
int fd;
int (*op)();
} substdio;
#define SUBSTDIO_FDBUF(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
extern void substdio_fdbuf();
extern int substdio_flush();
extern int substdio_put();
extern int substdio_bput();
extern int substdio_putflush();
extern int substdio_puts();
extern int substdio_bputs();
extern int substdio_putsflush();
extern int substdio_get();
extern int substdio_bget();
extern int substdio_feed();
extern char *substdio_peek();
extern void substdio_seek();
#define substdio_fileno(s) ((s)->fd)
#define SUBSTDIO_INSIZE 8192
#define SUBSTDIO_OUTSIZE 8192
#define substdio_PEEK(s) ( (s)->x + (s)->n )
#define substdio_SEEK(s,len) ( ( (s)->p -= (len) ) , ( (s)->n += (len) ) )
#define substdio_BPUTC(s,c) \
( ((s)->n != (s)->p) \
? ( (s)->x[(s)->p++] = (c), 0 ) \
: substdio_bput((s),&(c),1) \
)
extern int substdio_copy();
#endif
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