1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_finitef.c b/sysdeps/libm-ieee754/s_finitef.c
new file mode 100644
index 0000000..baafc31
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_finitef.c
@@ -0,0 +1,39 @@
+/* s_finitef.c -- float version of s_finite.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: s_finitef.c,v 1.4 1995/05/10 20:47:18 jtc Exp $";
+#endif
+
+/*
+ * finitef(x) returns 1 is x is finite, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+	int __finitef(float x)
+#else
+	int __finitef(x)
+	float x;
+#endif
+{
+	int32_t ix;
+	GET_FLOAT_WORD(ix,x);
+	return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31);
+}
+weak_alias (__finitef, finitef)