2.5-18.1

math/w_asin.c

@@ -0,0 +1,49 @@
+/* @(#)w_asin.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * 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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: w_asin.c,v 1.6 1995/05/10 20:48:35 jtc Exp $";
+#endif
+
+/*
+ * wrapper asin(x)
+ */
+
+
+#include <math.h>
+#include "math_private.h"
+
+
+#ifdef __STDC__
+	double __asin(double x)		/* wrapper asin */
+#else
+	double __asin(x)			/* wrapper asin */
+	double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_asin(x);
+#else
+	double z;
+	z = __ieee754_asin(x);
+	if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
+	if(fabs(x)>1.0) {
+	        return __kernel_standard(x,x,2); /* asin(|x|>1) */
+	} else
+	    return z;
+#endif
+}
+weak_alias (__asin, asin)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__asin, __asinl)
+weak_alias (__asin, asinl)
+#endif