?? substdio.h
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#ifndef SUBSTDIO_H#define SUBSTDIO_Htypedef 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?? 快捷鍵說明
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