1 files changed, 0 insertions, 42 deletions
diff --git a/sysdeps/generic/acos.c b/sysdeps/generic/acos.c
deleted file mode 100644
index c77c9faf1f..0000000000
--- a/sysdeps/generic/acos.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <ansidecl.h>
-#include <errno.h>
-#include <math.h>
-
-/* Return the inverse cosine of X.  */
-double
-DEFUN(acos, (x), double x)
-{
-  double t;
-
-  if (__isnan(x))
-    {
-      errno = EDOM;
-      return x;
-    }
-
-  if (x == -1.0)
-    /* If X is -1, the general formula blows up (zero divided by zero loses),
-       but we know that acos(-1) = pi.  */
-    t = atan2(1.0, 0.0);
-  else
-    t = atan2(sqrt((1.0 - x) / (1.0 + x)), 1.0);
-  return t + t;
-}