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 +1,60 @@
+
+
+/* @(#)w_pow.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 pow(x,y) return x**y
+ */
+
+#include "fdlibm.h"
+
+
+#ifdef __STDC__
+	double pow(double x, double y)	/* wrapper pow */
+#else
+	double pow(x,y)			/* wrapper pow */
+	double x,y;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return  __ieee754_pow(x,y);
+#else
+	double z;
+	z=__ieee754_pow(x,y);
+	if(_LIB_VERSION == _IEEE_|| isnan(y)) return z;
+	if(isnan(x)) {
+	    if(y==0.0) 
+	        return __kernel_standard(x,y,42); /* pow(NaN,0.0) */
+	    else 
+		return z;
+	}
+	if(x==0.0){ 
+	    if(y==0.0)
+	        return __kernel_standard(x,y,20); /* pow(0.0,0.0) */
+	    if(finite(y)&&y<0.0)
+	        return __kernel_standard(x,y,23); /* pow(0.0,negative) */
+	    return z;
+	}
+	if(!finite(z)) {
+	    if(finite(x)&&finite(y)) {
+	        if(isnan(z))
+	            return __kernel_standard(x,y,24); /* pow neg**non-int */
+	        else 
+	            return __kernel_standard(x,y,21); /* pow overflow */
+	    }
+	} 
+	if(z==0.0&&finite(x)&&finite(y))
+	    return __kernel_standard(x,y,22); /* pow underflow */
+	return z;
+#endif
+}