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-rw-r--r--math/s_significand.c39
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diff --git a/math/s_significand.c b/math/s_significand.c
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+/* @(#)s_signif.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * 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: s_significand.c,v 1.6 1995/05/10 20:48:11 jtc Exp $";
+#endif
+
+/*
+ * significand(x) computes just
+ * 	scalb(x, (double) -ilogb(x)),
+ * for exercising the fraction-part(F) IEEE 754-1985 test vector.
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+	double __significand(double x)
+#else
+	double __significand(x)
+	double x;
+#endif
+{
+	return __ieee754_scalb(x,(double) -__ilogb(x));
+}
+weak_alias (__significand, significand)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__significand, __significandl)
+weak_alias (__significand, significandl)
+#endif