1#include "stdio_impl.h"
2
3size_t __freadahead(FILE *f)
4{
5	return f->rend - f->rpos;
6}
7
8const char *__freadptr(FILE *f, size_t *sizep)
9{
10	size_t size = f->rend - f->rpos;
11	if (!size) return 0;
12	*sizep = size;
13	return (const char *)f->rpos;
14}
15
16void __freadptrinc(FILE *f, size_t inc)
17{
18	f->rpos += inc;
19}
20
21void __fseterr(FILE *f)
22{
23	f->flags |= F_ERR;
24}
25