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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /math/w_exp10.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Diffstat (limited to 'math/w_exp10.c')
-rw-r--r--math/w_exp10.c61
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diff --git a/math/w_exp10.c b/math/w_exp10.c
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+/* @(#)w_exp10.c
+ * Conversion to exp10 by Ulrich Drepper <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 exp10(x)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const double
+#else
+static double
+#endif
+o_threshold= 3.0825471555991674389672e+02,
+u_threshold= -3.2360724533877978485251e+02;
+
+#ifdef __STDC__
+ double __exp10(double x) /* wrapper exp10 */
+#else
+ double __exp10(x) /* wrapper exp10 */
+ double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_exp10(x);
+#else
+ double z;
+ z = __ieee754_exp10(x);
+ if(_LIB_VERSION == _IEEE_) return z;
+ if(__finite(x)) {
+ if(x>o_threshold)
+ return __kernel_standard(x,x,46); /* exp10 overflow */
+ else if(x<u_threshold)
+ return __kernel_standard(x,x,47); /* exp10 underflow */
+ }
+ return z;
+#endif
+}
+weak_alias (__exp10, exp10)
+strong_alias (__exp10, __pow10)
+weak_alias (__pow10, pow10)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__exp10, __exp10l)
+weak_alias (__exp10, exp10l)
+strong_alias (__exp10l, __pow10l)
+weak_alias (__pow10l, pow10l)
+#endif