summaryrefslogtreecommitdiffstats
path: root/lib/msun/src/w_y0f.c
diff options
context:
space:
mode:
authorbde <bde@FreeBSD.org>1997-02-20 13:35:15 +0000
committerbde <bde@FreeBSD.org>1997-02-20 13:35:15 +0000
commita9570d9f942c778c099c84d08f34773b14f0d9c8 (patch)
tree968171ff9ded709c4e63152a09c3e290b805168b /lib/msun/src/w_y0f.c
parent0071d9dabbe23115ee60715fbeba793f63803d49 (diff)
downloadFreeBSD-src-a9570d9f942c778c099c84d08f34773b14f0d9c8.zip
FreeBSD-src-a9570d9f942c778c099c84d08f34773b14f0d9c8.tar.gz
Split up the Bessel function wrapper files so that most wrapper functions
are in their own file.
Diffstat (limited to 'lib/msun/src/w_y0f.c')
-rw-r--r--lib/msun/src/w_y0f.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/lib/msun/src/w_y0f.c b/lib/msun/src/w_y0f.c
new file mode 100644
index 0000000..a716441
--- /dev/null
+++ b/lib/msun/src/w_y0f.c
@@ -0,0 +1,54 @@
+/* w_y0f.c -- float version of w_y0.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.
+ * ====================================================
+ */
+
+#ifndef lint
+static char rcsid[] = "$FreeBSD$";
+#endif
+
+/*
+ * wrapper y0f(float x)
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ float y0f(float x) /* wrapper y0f */
+#else
+ float y0f(x) /* wrapper y0f */
+ float x;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_y0f(x);
+#else
+ float z;
+ z = __ieee754_y0f(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)x,(double)x,108);
+ else
+ /* d = zero/(x-x); */
+ return (float)__kernel_standard((double)x,(double)x,109);
+ }
+ if(x>(float)X_TLOSS) {
+ /* y0(x>X_TLOSS) */
+ return (float)__kernel_standard((double)x,(double)x,135);
+ } else
+ return z;
+#endif
+}
OpenPOWER on IntegriCloud