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-rw-r--r--sysdeps/libm-ieee754/s_ldexp.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_ldexp.c b/sysdeps/libm-ieee754/s_ldexp.c
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index 0000000000..754fef6e99
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+++ b/sysdeps/libm-ieee754/s_ldexp.c
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+/* @(#)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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: s_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+#include <errno.h>
+
+#ifdef __STDC__
+	double __ldexp(double value, int exp)
+#else
+	double __ldexp(value, exp)
+	double value; int exp;
+#endif
+{
+	if(!__finite(value)||value==0.0) return value;
+	value = __scalbn(value,exp);
+	if(!__finite(value)||value==0.0) errno = ERANGE;
+	return value;
+}
+weak_alias (__ldexp, ldexp)