1 files changed, 56 insertions, 0 deletions
diff --git a/w_scalb.c b/w_scalb.c
new file mode 100644
index 0000000..7130993
--- /dev/null
+++ b/w_scalb.c
@@ -0,0 +1,56 @@
+
+/* @(#)w_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.
+ * ====================================================
+ */
+
+/*
+ * wrapper ieee_scalb(double x, double fn) is provide for
+ * passing various standard test suite. One 
+ * should use ieee_scalbn() instead.
+ */
+
+#include "fdlibm.h"
+
+#include <errno.h>
+
+#ifdef __STDC__
+#ifdef _SCALB_INT
+	double ieee_scalb(double x, int fn)		/* wrapper scalb */
+#else
+	double ieee_scalb(double x, double fn)	/* wrapper scalb */
+#endif
+#else
+	double ieee_scalb(x,fn)			/* wrapper scalb */
+#ifdef _SCALB_INT
+	double x; int fn;
+#else
+	double x,fn;
+#endif
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_scalb(x,fn);
+#else
+	double z;
+	z = __ieee754_scalb(x,fn);
+	if(_LIB_VERSION == _IEEE_) return z;
+	if(!(ieee_finite(z)||ieee_isnan(z))&&ieee_finite(x)) {
+	    return __kernel_standard(x,(double)fn,32); /* scalb overflow */
+	}
+	if(z==0.0&&z!=x) {
+	    return __kernel_standard(x,(double)fn,33); /* scalb underflow */
+	} 
+#ifndef _SCALB_INT
+	if(!ieee_finite(fn)) errno = ERANGE;
+#endif
+	return z;
+#endif 
+}