1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/generic/e_scalbf.c b/sysdeps/generic/e_scalbf.c
new file mode 100644
index 0000000000..f51057e7b4
--- /dev/null
+++ b/sysdeps/generic/e_scalbf.c
@@ -0,0 +1,56 @@
+/* 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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: e_scalbf.c,v 1.3 1995/05/10 20:46:12 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef _SCALB_INT
+#ifdef __STDC__
+	float __ieee754_scalbf(float x, int fn)
+#else
+	float __ieee754_scalbf(x,fn)
+	float x; int fn;
+#endif
+#else
+#ifdef __STDC__
+	float __ieee754_scalbf(float x, float fn)
+#else
+	float __ieee754_scalbf(x,fn)
+	float x, fn;
+#endif
+#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 if (x == 0)
+	      return x;
+	    else if (!__finitef (x))
+	      return __nanf ("");
+	    else       return x/(-fn);
+	}
+	if (__rintf(fn)!=fn) return __nanf ("");
+	if ( fn > (float)65000.0) return __scalbnf(x, 65000);
+	if (-fn > (float)65000.0) return __scalbnf(x,-65000);
+	return __scalbnf(x,(int)fn);
+#endif
+}