#ifndef _STDIO_EXT_H
#define _STDIO_EXT_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stdio.h>

#define FSETLOCKING_QUERY 0
#define FSETLOCKING_INTERNAL 1
#define FSETLOCKING_BYCALLER 2

void _flushlbf(void);
int __fsetlocking(FILE*, int);
int __fwriting(FILE*);
int __freading(FILE*);
int __freadable(FILE*);
int __fwritable(FILE*);
int __flbf(FILE*);
size_t __fbufsize(FILE*);
size_t __fpending(FILE*);
int __fpurge(FILE*);

size_t __freadahead(FILE*);
const char* __freadptr(FILE*, size_t*);
void __freadptrinc(FILE*, size_t);
void __fseterr(FILE*);

#ifdef __cplusplus
}
#endif

#endif