upload sdk

git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/math/sf_signif.c

@@ -0,0 +1,40 @@
+/* sf_signif.c -- float version of s_signif.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 "fdlibm.h"
+
+#ifdef __STDC__
+	float significandf(float x)
+#else
+	float significandf(x)
+	float x;
+#endif
+{
+	return __ieee754_scalbf(x,(float) -ilogbf(x));
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+#ifdef __STDC__
+	double significand(double x)
+#else
+	double significand(x)
+	double x;
+#endif
+{
+	return (double) significandf((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */