upload sdk

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

contrib/sdk/sources/newlib/math/wf_exp2.c

@@ -0,0 +1,46 @@
+/* wf_exp2.c -- float version of w_exp2.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * 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.
+ * ====================================================
+ */
+
+/* 
+ * wrapper exp2f(x)
+ */
+
+#include "fdlibm.h"
+#include <errno.h>
+#include <math.h>
+
+#ifdef __STDC__
+	float exp2f(float x)		/* wrapper exp2f */
+#else
+	float exp2f(x)			/* wrapper exp2f */
+	float x;
+#endif
+{
+  return powf(2.0, x);
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+#ifdef __STDC__
+	double exp2(double x)
+#else
+	double exp2(x)
+	double x;
+#endif
+{
+	return (double) exp2f((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */