sandbox/v1/io.h

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#ifndef __KF_IO_H__
#define __KF_IO_H__
#include "defs.h"
#include "stack.h"
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class IO {
public:
// Virtual destructor is required in all ABCs.
virtual ~IO() {};
// Building block methods.
virtual char rdch(void) = 0;
virtual void wrch(char c) = 0;
// Buffer I/O.
virtual size_t rdbuf(char *buf, size_t len, bool stopat, char stopch) = 0;
virtual void wrbuf(char *buf, size_t len) = 0;
// Line I/O
virtual bool rdln(char *buf, size_t len, size_t *readlen) = 0;
virtual void wrln(char *buf, size_t len) = 0;
virtual void newline(void) = 0;
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};
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void write_num(IO *, KF_INT);
void write_unum(IO *, KF_UINT);
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void write_dnum(IO *, KF_LONG);
void write_dstack(IO *, Stack<KF_INT>);
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#endif // __KF_IO_H__