diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_cproj.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_cproj.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/sysdeps/libm-ieee754/s_cproj.c b/sysdeps/libm-ieee754/s_cproj.c deleted file mode 100644 index fb50bb5a88..0000000000 --- a/sysdeps/libm-ieee754/s_cproj.c +++ /dev/null @@ -1,49 +0,0 @@ -/* Compute projection of complex double value to Riemann sphere. - Copyright (C) 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <complex.h> -#include <math.h> - - -__complex__ double -__cproj (__complex__ double x) -{ - __complex__ double res; - - if (!isfinite (__real__ x) || !isfinite (__imag__ x)) - { - __real__ res = INFINITY; - __imag__ res = __copysign (0.0, __imag__ x); - } - else - { - double den = __real__ x * __real__ x + __imag__ x * __imag__ x + 1.0; - - __real__ res = (2.0 * __real__ x) / den; - __imag__ res = (2.0 * __imag__ x) / den; - } - - return res; -} -weak_alias (__cproj, cproj) -#ifdef NO_LONG_DOUBLE -strong_alias (__cproj, __cprojl) -weak_alias (__cproj, cprojl) -#endif |