1/* Euclidean distance function. Float/Binary32 version.
2 Copyright (C) 2012-2022 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 <errno.h>
20#include <libm-alias-finite.h>
21#include <libm-alias-float.h>
22#include <math-svid-compat.h>
23#include <math.h>
24#include <math-narrow-eval.h>
25#include <math_private.h>
26
27float
28__hypotf (float x, float y)
29{
30 if (!isfinite (x) || !isfinite (y))
31 {
32 if ((isinf (x) || isinf (y))
33 && !issignaling (x) && !issignaling (y))
34 return INFINITY;
35 return x + y;
36 }
37
38 float r = math_narrow_eval ((float) sqrt ((double) x * (double) x
39 + (double) y * (double) y));
40 if (!isfinite (r))
41 __set_errno (ERANGE);
42 return r;
43}
44strong_alias (__hypotf, __ieee754_hypotf)
45#if LIBM_SVID_COMPAT
46versioned_symbol (libm, __hypotf, hypotf, GLIBC_2_35);
47libm_alias_float_other (__hypot, hypot)
48#else
49libm_alias_float (__hypot, hypot)
50#endif
51libm_alias_finite (__ieee754_hypotf, __hypotf)
52