upload sdk

git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/math/sf_llround.c

@@ -0,0 +1,55 @@
+/* lroundf adapted to be llroundf for Newlib, 2009 by Craig Howland.  */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice 
+ * is preserved.
+ * ====================================================
+ */
+
+#include "fdlibm.h"
+
+long long int
+llroundf(float x)
+{
+  __int32_t exponent_less_127;
+  __uint32_t w;
+  long long int result;
+  __int32_t sign;
+
+  GET_FLOAT_WORD (w, x);
+  exponent_less_127 = ((w & 0x7f800000) >> 23) - 127;
+  sign = (w & 0x80000000) != 0 ? -1 : 1;
+  w &= 0x7fffff;
+  w |= 0x800000;
+
+  if (exponent_less_127 < (int)((8 * sizeof (long long int)) - 1))
+    {
+      if (exponent_less_127 < 0)
+        return exponent_less_127 < -1 ? 0 : sign;
+      else if (exponent_less_127 >= 23)
+        result = (long long int) w << (exponent_less_127 - 23);
+      else
+        {
+          w += 0x400000 >> exponent_less_127;
+          result = w >> (23 - exponent_less_127);
+        }
+    }
+  else
+      return (long long int) x;
+
+  return sign * result;
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+long long int
+llround(double x)
+{
+	return llroundf((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */