#ifndef _STDIO_H #define _STDIO_H #ifdef __cplusplus extern "C" { #endif struct _IO_FILE { char __x; }; typedef struct _IO_FILE FILE; extern FILE *const stdin; extern FILE *const stdout; extern FILE *const stderr; #define stdin (stdin) #define stdout (stdout) #define stderr (stderr) int fprintf(FILE *__restrict, const char *__restrict, ...); #ifdef __cplusplus } #endif #endif