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-rw-r--r--sysdeps/libm-ieee754/s_ldexpf.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/s_ldexpf.c b/sysdeps/libm-ieee754/s_ldexpf.c
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+++ b/sysdeps/libm-ieee754/s_ldexpf.c
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+/* s_ldexpf.c -- float version of s_ldexp.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_ldexpf.c,v 1.3 1995/05/10 20:47:42 jtc Exp $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+#include <errno.h>
+
+#ifdef __STDC__
+	float __ldexpf(float value, int exp)
+#else
+	float __ldexpf(value, exp)
+	float value; int exp;
+#endif
+{
+	if(!__finitef(value)||value==(float)0.0) return value;
+	value = __scalbnf(value,exp);
+	if(!__finitef(value)||value==(float)0.0) errno = ERANGE;
+	return value;
+}
+weak_alias (__ldexpf, ldexpf)