1 files changed, 0 insertions, 31 deletions
diff --git a/winsup/mingw/mingwex/math/atanh.c b/winsup/mingw/mingwex/math/atanh.c
deleted file mode 100755
index b5d9ce100..000000000
--- a/winsup/mingw/mingwex/math/atanh.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <math.h>
-#include <errno.h>
-#include "fastmath.h"
-
-/* atanh (x) = 0.5 * log ((1.0 + x)/(1.0 - x)) */
-
-double atanh(double x)
-{
-  double z;
-  if isnan (x)
-    return x;
-  z = fabs (x);
-  if (z == 1.0)
-    {
-      errno  = ERANGE;
-      return (x > 0 ? INFINITY : -INFINITY);
-    }
-  if (z > 1.0)
-    {
-      errno = EDOM;
-      return nan("");
-    }
-  /* Rearrange formula to avoid precision loss for small x.
-
-  atanh(x) = 0.5 * log ((1.0 + x)/(1.0 - x))
-	   = 0.5 * log1p ((1.0 + x)/(1.0 - x) - 1.0)
-           = 0.5 * log1p ((1.0 + x - 1.0 + x) /(1.0 - x)) 
-           = 0.5 * log1p ((2.0 * x ) / (1.0 - x))  */
-  z = 0.5 * __fast_log1p ((z + z) / (1.0 - z));
-  return x >= 0 ? z : -z;
-}