source: azure_iot_hub/trunk/musl-1.1.18/src/stdio/ext2.c@ 389

#include "stdio_impl.h"

size_t __freadahead(FILE *f)
{
        return f->rend - f->rpos;
}

const char *__freadptr(FILE *f, size_t *sizep)
{
        size_t size = f->rend - f->rpos;
        if (!size) return 0;
        *sizep = size;
        return (const char *)f->rpos;
}

void __freadptrinc(FILE *f, size_t inc)
{
        f->rpos += inc;
}

void __fseterr(FILE *f)
{
        f->flags |= F_ERR;
}