about summary refs log tree commit diff
path: root/sysdeps/generic/asin.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/generic/asin.c')
-rw-r--r--sysdeps/generic/asin.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/sysdeps/generic/asin.c b/sysdeps/generic/asin.c
deleted file mode 100644
index e75ee3d87e..0000000000
--- a/sysdeps/generic/asin.c
+++ /dev/null
@@ -1,44 +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 sine of X.  */
-double
-DEFUN(asin, (x), double x)
-{
-  double abs_x;
-
-  if (__isnan(x))
-    {
-      errno = EDOM;
-      return x;
-    }
-
-  abs_x = fabs(x);
-
-  if (abs_x <= 0.5)
-    return atan2(x, sqrt(1.0 - (x * x)));
-  else
-    {
-      double t = 1.0 - abs_x;
-      return atan2(x, sqrt((t + t) - (t * t)));
-    }
-}