1#ifndef STDIO_H 2#define STDIO_H 3 4#include <stdarg.h> 5#include <stdlib.h> 6 7typedef unsigned int off_t; 8 9int putchar(int); 10int puts(const char *); 11int sprintf(char *buf, const char *fmt, ...); 12int vsprintf(char *buf, const char *fmt, va_list args); 13int printf(const char *fmt, ...); 14 15#define stdin 0 16#define stdout 1 17#define stderr 2 18 19#define EOF (-1) 20 21#define fprintf(x, y, ...) printf(y, ## __VA_ARGS__) 22 23#endif /* STDIO_H */ 24