1 /* Get NaN payload.  ldbl-96 version.
2    Copyright (C) 2016-2022 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #include <math.h>
20 #include <math_private.h>
21 #include <libm-alias-ldouble.h>
22 #include <stdint.h>
23 
24 long double
__getpayloadl(const long double * x)25 __getpayloadl (const long double *x)
26 {
27   uint16_t se __attribute__ ((unused));
28   uint32_t hx, lx;
29   GET_LDOUBLE_WORDS (se, hx, lx, *x);
30   if ((se & 0x7fff) != 0x7fff
31       || ((hx & 0x7fffffff) | lx) == 0)
32     return -1;
33   hx &= 0x3fffffff;
34   uint64_t ix = ((uint64_t) hx << 32) | lx;
35   return (long double) ix;
36 }
37 libm_alias_ldouble (__getpayload, getpayload)
38