Initial Contributionandroid-1.0release-1.0cdma-import

1 files changed, 40 insertions, 0 deletions

diff --git a/w_atan2.c b/w_atan2.c
new file mode 100644
index 0000000..f4cc0eb
--- /dev/null
+++ b/w_atan2.c
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+
+/* @(#)w_atan2.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 ieee_atan2(y,x)
+ */
+
+#include "fdlibm.h"
+
+
+#ifdef __STDC__
+	double ieee_atan2(double y, double x)	/* wrapper atan2 */
+#else
+	double ieee_atan2(y,x)			/* wrapper atan2 */
+	double y,x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_atan2(y,x);
+#else
+	double z;
+	z = __ieee754_atan2(y,x);
+	if(_LIB_VERSION == _IEEE_||ieee_isnan(x)||ieee_isnan(y)) return z;
+	if(x==0.0&&y==0.0) {
+	        return __kernel_standard(y,x,3); /* ieee_atan2(+-0,+-0) */
+	} else
+	    return z;
+#endif
+}