-/* Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2001, 2005
+/* Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2001
Free Software Foundation, Inc.
This file is part of the GNU C Library.
CHECK_FILE (fp, NULL);
if (n <= 0)
return NULL;
- if (__builtin_expect (n == 1, 0))
- {
- /* Another irregular case: since we have to store a NUL byte and
- there is only room for exactly one byte, we don't have to
- read anything. */
- buf[0] = L'\0';
- return buf;
- }
_IO_acquire_lock (fp);
/* This is very tricky since a file descriptor may be in the
non-blocking mode. The error flag doesn't mean much in this