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-rw-r--r--lib/msun/src/e_scalbf.c43
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diff --git a/lib/msun/src/e_scalbf.c b/lib/msun/src/e_scalbf.c
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+/* 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.
+ * ====================================================
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#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
+}
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