1 files changed, 0 insertions, 112 deletions
diff --git a/nuttx/libc/math/lib_expf.c b/nuttx/libc/math/lib_expf.c
deleted file mode 100644
index 3e43c54a6..000000000
--- a/nuttx/libc/math/lib_expf.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/************************************************************************
- * libc/math/lib_expf.c
- *
- * This file is a part of NuttX:
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Ported by: Darcy Gong
- *
- * It derives from the Rhombs OS math library by Nick Johnson which has
- * a compatibile, MIT-style license:
- *
- * Copyright (C) 2009-2011 Nick Johnson <nickbjohnson4224 at gmail.com>
- * 
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- ************************************************************************/
-
-/************************************************************************
- * Included Files
- ************************************************************************/
-
-#include <sys/types.h>
-#include <math.h>
-
-#include "lib_internal.h"
-
-/************************************************************************
- * Private Data
- ************************************************************************/
-
-static float _flt_inv_fact[] =
-{
-  1.0 / 1.0,                    // 1/0!
-  1.0 / 1.0,                    // 1/1!
-  1.0 / 2.0,                    // 1/2!
-  1.0 / 6.0,                    // 1/3!
-  1.0 / 24.0,                   // 1/4!
-  1.0 / 120.0,                  // 1/5!
-  1.0 / 720.0,                  // 1/6!
-  1.0 / 5040.0,                 // 1/7!
-  1.0 / 40320.0,                // 1/8!
-  1.0 / 362880.0,               // 1/9!
-  1.0 / 3628800.0,              // 1/10!
-};
-
-/************************************************************************
- * Public Functions
- ************************************************************************/
-
-float expf(float x)
-{
-  size_t int_part;
-  bool invert;
-  float value;
-  float x0;
-  size_t i;
-
-  if (x == 0)
-    {
-      return 1;
-    }
-  else if (x < 0)
-    {
-      invert = true;
-      x = -x;
-    }
-  else
-    {
-      invert = false;
-    }
-
-  /* Extract integer component */
-
-  int_part = (size_t) x;
-
-  /* set x to fractional component */
-
-  x -= (float)int_part;
-
-  /* Perform Taylor series approximation with eleven terms */
-
-  value = 0.0;
-  x0 = 1.0;
-  for (i = 0; i < 10; i++)
-    {
-      value += x0 * _flt_inv_fact[i];
-      x0 *= x;
-    }
-
-  /* Multiply by exp of the integer component */
-
-  value *= lib_expi(int_part);
-
-  if (invert)
-    {
-      return (1.0 / value);
-    }
-  else
-    {
-      return value;
-    }
-}