svn commit: trunk/uClibc/libm

[aldot at uclibc.org]

Author: aldot
Date: 2008-10-06 03:24:41 -0700 (Mon, 06 Oct 2008)
New Revision: 23597

Log:
- implement log2()


Added:
   trunk/uClibc/libm/w_log2.c

Modified:
   trunk/uClibc/libm/Makefile.in


Changeset:
Modified: trunk/uClibc/libm/Makefile.in
===================================================================
--- trunk/uClibc/libm/Makefile.in	2008-10-06 09:54:03 UTC (rev 23596)
+++ trunk/uClibc/libm/Makefile.in	2008-10-06 10:24:41 UTC (rev 23597)
@@ -69,7 +69,7 @@
 	s_tanh.c s_trunc.c w_acos.c w_acosh.c w_asin.c w_atan2.c w_atanh.c \
 	w_cabs.c w_cosh.c w_drem.c w_exp.c w_fmod.c w_gamma.c \
 	w_hypot.c w_j0.c w_j1.c w_jn.c w_lgamma.c w_lgamma_r.c \
-	w_log.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c \
+	w_log.c w_log2.c w_log10.c w_pow.c w_remainder.c w_scalb.c w_sinh.c \
 	w_sqrt.c nan.c carg.c s_llrint.c \
 	s_fpclassify.c s_fpclassifyf.c s_signbit.c s_signbitf.c \
 	s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \

Added: trunk/uClibc/libm/w_log2.c
===================================================================
--- trunk/uClibc/libm/w_log2.c	                        (rev 0)
+++ trunk/uClibc/libm/w_log2.c	2008-10-06 10:24:41 UTC (rev 23597)
@@ -0,0 +1,14 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2008 by Bernhard Reutner-Fischer <uclibc at uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+#include <math.h>
+#include "math_private.h"
+
+double log2 (double d)
+{
+	return __ieee754_log2 (d);
+}
+libm_hidden_def(log2)