1 /* Long double precision math error handling.
2    Copyright (c) 2018 Arm Ltd.  All rights reserved.
3 
4    SPDX-License-Identifier: BSD-3-Clause
5 
6    Redistribution and use in source and binary forms, with or without
7    modification, are permitted provided that the following conditions
8    are met:
9    1. Redistributions of source code must retain the above copyright
10       notice, this list of conditions and the following disclaimer.
11    2. Redistributions in binary form must reproduce the above copyright
12       notice, this list of conditions and the following disclaimer in the
13       documentation and/or other materials provided with the distribution.
14    3. The name of the company may not be used to endorse or promote
15       products derived from this software without specific prior written
16       permission.
17 
18    THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
19    WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
20    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21    IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
23    TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
28 
29 #include "math_config.h"
30 
31 #if WANT_ERRNO
32 #include <errno.h>
33 /* NOINLINE reduces code size and avoids making math functions non-leaf
34    when the error handling is inlined.  */
35 NOINLINE HIDDEN long double
__math_with_errnol(long double y,int e)36 __math_with_errnol (long double y, int e)
37 {
38   errno = e;
39   return y;
40 }
41 #endif
42