Use __builtin_fma more in dbl-64 code.
[glibc.git] / math / s_cproj_template.c
blobe274e4cef59a67e9794056bcdfb8c21de52e2ff7
1 /* Compute projection of complex float type value to Riemann sphere.
2 Copyright (C) 1997-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 #include <complex.h>
21 #include <math.h>
22 #include <math_private.h>
25 CFLOAT
26 M_DECL_FUNC (__cproj) (CFLOAT x)
28 if (isinf (__real__ x) || isinf (__imag__ x))
30 CFLOAT res;
32 __real__ res = INFINITY;
33 __imag__ res = M_COPYSIGN (0, __imag__ x);
35 return res;
38 return x;
41 declare_mgen_alias (__cproj, cproj)
43 #if M_LIBM_NEED_COMPAT (cproj)
44 declare_mgen_libm_compat (__cproj, cproj)
45 #endif