1 files changed, 29 insertions, 0 deletions
diff --git a/StdLib/LibC/Math/s_ldexp.c b/StdLib/LibC/Math/s_ldexp.c
new file mode 100644
index 0000000000..6c843c7fe9
--- /dev/null
+++ b/StdLib/LibC/Math/s_ldexp.c
@@ -0,0 +1,29 @@
+/* @(#)s_ldexp.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.
+ * ====================================================
+ */
+#include  <LibConfig.h>
+#include  <sys/EfiCdefs.h>
+#if defined(LIBM_SCCS) && !defined(lint)
+__RCSID("$NetBSD: s_ldexp.c,v 1.9 2002/05/26 22:01:56 wiz Exp $");
+#endif
+
+#include <errno.h>
+#include "math.h"
+#include "math_private.h"
+
+double
+ldexp(double value, int exp)
+{
+  if(!finite(value)||value==0.0) return value;
+  value = scalbn(value,exp);
+  if(!finite(value)||value==0.0) errno = ERANGE;
+  return value;
+}