auto import from //depot/cupcake/@135843
diff --git a/e_scalb.c b/e_scalb.c
new file mode 100644
index 0000000..f7f77c2
--- /dev/null
+++ b/e_scalb.c
@@ -0,0 +1,51 @@
+
+/* @(#)e_scalb.c 1.3 95/01/18 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunSoft, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * __ieee754_scalb(x, fn) is provide for
+ * passing various standard test suite. One
+ * should use ieee_scalbn() instead.
+ */
+
+#include "fdlibm.h"
+
+#ifdef _SCALB_INT
+#ifdef __STDC__
+ double __ieee754_scalb(double x, int fn)
+#else
+ double __ieee754_scalb(x,fn)
+ double x; int fn;
+#endif
+#else
+#ifdef __STDC__
+ double __ieee754_scalb(double x, double fn)
+#else
+ double __ieee754_scalb(x,fn)
+ double x, fn;
+#endif
+#endif
+{
+#ifdef _SCALB_INT
+ return ieee_scalbn(x,fn);
+#else
+ if (ieee_isnan(x)||ieee_isnan(fn)) return x*fn;
+ if (!ieee_finite(fn)) {
+ if(fn>0.0) return x*fn;
+ else return x/(-fn);
+ }
+ if (ieee_rint(fn)!=fn) return (fn-fn)/(fn-fn);
+ if ( fn > 65000.0) return ieee_scalbn(x, 65000);
+ if (-fn > 65000.0) return ieee_scalbn(x,-65000);
+ return ieee_scalbn(x,(int)fn);
+#endif
+}