about summary refs log tree commit diff
path: root/sysdeps/generic/w_exp10l.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/generic/w_exp10l.c')
-rw-r--r--sysdeps/generic/w_exp10l.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/generic/w_exp10l.c b/sysdeps/generic/w_exp10l.c
new file mode 100644
index 0000000000..7117873c22
--- /dev/null
+++ b/sysdeps/generic/w_exp10l.c
@@ -0,0 +1,56 @@
+/* w_exp10l.c -- long double version of w_exp10.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@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.
+ * ====================================================
+ */
+
+/*
+ * wrapper exp10l(x)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double
+#else
+static long double
+#endif
+o_threshold=  4.93207544895866790234755e+03,
+u_threshold= -4.95104033868549871764588e+03;
+
+#ifdef __STDC__
+	long double __exp10l(long double x)	/* wrapper exp10 */
+#else
+	long double __exp10l(x)			/* wrapper exp10 */
+	long double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_exp10l(x);
+#else
+	long double z;
+	z = __ieee754_exp10l(x);
+	if(_LIB_VERSION == _IEEE_) return z;
+	if(__finitel(x)) {
+	    if(x>o_threshold)
+	        return __kernel_standard(x,x,246); /* exp10 overflow */
+	    else if(x<u_threshold)
+	        return __kernel_standard(x,x,247); /* exp10 underflow */
+	}
+	return z;
+#endif
+}
+weak_alias (__exp10l, exp10l)
+strong_alias (__exp10l, __pow10l)
+weak_alias (__pow10l, pow10l)