Generic w_jnf.c.
authordrepper <drepper>
Wed, 14 Dec 2005 11:48:05 +0000 (11:48 +0000)
committerdrepper <drepper>
Wed, 14 Dec 2005 11:48:05 +0000 (11:48 +0000)
math/w_jnf.c [new file with mode: 0644]

diff --git a/math/w_jnf.c b/math/w_jnf.c
new file mode 100644 (file)
index 0000000..628701d
--- /dev/null
@@ -0,0 +1,71 @@
+/* w_jnf.c -- float version of w_jn.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * 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_jnf.c,v 1.3 1995/05/10 20:49:21 jtc Exp $";
+#endif
+
+#include <math.h>
+#include "math_private.h"
+
+#ifdef __STDC__
+       float jnf(int n, float x)       /* wrapper jnf */
+#else
+       float jnf(n,x)                  /* wrapper jnf */
+       float x; int n;
+#endif
+{
+#ifdef _IEEE_LIBM
+       return __ieee754_jnf(n,x);
+#else
+       float z;
+       z = __ieee754_jnf(n,x);
+       if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
+       if(fabsf(x)>(float)X_TLOSS) {
+           /* jn(|x|>X_TLOSS,n) */
+           return (float)__kernel_standard((double)n,(double)x,138);
+       } else
+           return z;
+#endif
+}
+
+#ifdef __STDC__
+       float ynf(int n, float x)       /* wrapper ynf */
+#else
+       float ynf(n,x)                  /* wrapper ynf */
+       float x; int n;
+#endif
+{
+#ifdef _IEEE_LIBM
+       return __ieee754_ynf(n,x);
+#else
+       float z;
+       z = __ieee754_ynf(n,x);
+       if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
+        if(x <= (float)0.0){
+                if(x==(float)0.0)
+                    /* d= -one/(x-x); */
+                    return (float)__kernel_standard((double)n,(double)x,112);
+                else
+                    /* d = zero/(x-x); */
+                    return (float)__kernel_standard((double)n,(double)x,113);
+        }
+       if(x>(float)X_TLOSS) {
+           /* yn(x>X_TLOSS,n) */
+           return (float)__kernel_standard((double)n,(double)x,139);
+       } else
+           return z;
+#endif
+}