heronyang · August 3, 2019 21:05
diff --git a/io_device.cc b/io_device.cc
 #include "file.h"

 void (*open)(char *name, int mode) {/*...*/};
 void (*close) {/*...*/};
 int (*read)() {/*...*/};
 void (*write)(char) {/*...*/};
 void (*seek)(long index, int mode) {/*...*/};

 struct FILE console = {open, close, read, write, seek};
	#include "file.h"

	void (open)(char name, int mode) {/.../};
	void (close) {/...*/};
	int (read)() {/...*/};
	void (write)(char) {/...*/};
	void (seek)(long index, int mode) {/...*/};

	struct FILE console = {open, close, read, write, seek};