misc: Optimize internal usage of __libc_single_threaded
[glibc.git] / libio / putchar_u.c
blob85f61e9d1f813736c9e71b20541d31aaf44ed4ae
1 /* Copyright (C) 1991-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
18 #include "libioP.h"
19 #include "stdio.h"
21 #undef putchar_unlocked
23 int
24 putchar_unlocked (int c)
26 CHECK_FILE (stdout, EOF);
27 return _IO_putc_unlocked (c, stdout);