about summary refs log tree commit diff
path: root/math/s_cproj.c
diff options
context:
space:
mode:
Diffstat (limited to 'math/s_cproj.c')
-rw-r--r--math/s_cproj.c51
1 files changed, 0 insertions, 51 deletions
diff --git a/math/s_cproj.c b/math/s_cproj.c
deleted file mode 100644
index 8e7ca41df8..0000000000
--- a/math/s_cproj.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* Compute projection of complex double value to Riemann sphere.
-   Copyright (C) 1997, 1999 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 Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; 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 (isnan (__real__ x) && isnan (__imag__ x))
-    return x;
-  else 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