Initial Contributionandroid-1.0

1 files changed, 46 insertions, 0 deletions

diff --git a/libm/src/e_scalbf.c b/libm/src/e_scalbf.c
new file mode 100644
index 0000000..07ac1f4
--- /dev/null
+++ b/libm/src/e_scalbf.c
@@ -0,0 +1,46 @@
+/* e_scalbf.c -- float version of e_scalb.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.
+ * ====================================================
+ */
+
+#ifndef lint
+static char rcsid[] = "$FreeBSD: src/lib/msun/src/e_scalbf.c,v 1.10 2005/12/06 20:12:38 obrien Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef _SCALB_INT
+float
+__ieee754_scalbf(float x, int fn)
+#else
+float
+__ieee754_scalbf(float x, float fn)
+#endif
+{
+#ifdef _SCALB_INT
+	return scalbnf(x,fn);
+#else
+	if ((isnanf)(x)||(isnanf)(fn)) return x*fn;
+	if (!finitef(fn)) {
+	    if(fn>(float)0.0) return x*fn;
+	    else       return x/(-fn);
+	}
+	if (rintf(fn)!=fn) return (fn-fn)/(fn-fn);
+	if ( fn > (float)65000.0) return scalbnf(x, 65000);
+	if (-fn > (float)65000.0) return scalbnf(x,-65000);
+	return scalbnf(x,(int)fn);
+#endif
+}
+
+__weak_reference(scalbf, ldexpf);