Added Math functions

JerryScript-DCO-1.0-Signed-off-by: Tamas Czene tczene.u-szeged@partner.samsung.com
2015-05-08 13:49:09 +02:00
parent 7d703040d0
commit 7dfbc88cc0
44 changed files with 4647 additions and 388 deletions
@@ -0,0 +1,39 @@
+
+/* @(#)w_log.c 1.3 95/01/18 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunSoft, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice 
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * wrapper log(x)
+ */
+
+#include "fdlibm.h"
+
+
+#ifdef __STDC__
+	double log(double x)		/* wrapper log */
+#else
+	double log(x)			/* wrapper log */
+	double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_log(x);
+#else
+	double z;
+	z = __ieee754_log(x);
+	if(_LIB_VERSION == _IEEE_ || isnan(x) || x > 0.0) return z;
+	if(x==0.0)
+	    return __kernel_standard(x,x,16); /* log(0) */
+	else 
+	    return __kernel_standard(x,x,17); /* log(x<0) */
+#endif
+}