unistd: Improve fortify with clang
[glibc.git] / sysdeps / ieee754 / flt-32 / s_getpayloadf.c
blobe06e7aaa128c645d0b78570df852308e4b2cc6aa
1 /* Get NaN payload. flt-32 version.
2 Copyright (C) 2016-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <fix-int-fp-convert-zero.h>
20 #include <math.h>
21 #include <math_private.h>
22 #include <libm-alias-float.h>
23 #include <stdint.h>
25 float
26 __getpayloadf (const float *x)
28 uint32_t ix;
29 GET_FLOAT_WORD (ix, *x);
30 if ((ix & 0x7f800000) != 0x7f800000
31 || (ix & 0x7fffff) == 0)
32 return -1;
33 ix &= 0x3fffff;
34 if (FIX_INT_FP_CONVERT_ZERO && ix == 0)
35 return 0.0f;
36 return (float) ix;
38 libm_alias_float (__getpayload, getpayload)