1 files changed, 138 insertions, 0 deletions
diff --git a/newlib/libm/math/wf_jn.c b/newlib/libm/math/wf_jn.c
new file mode 100644
index 0000000..c3a5263
--- /dev/null
+++ b/newlib/libm/math/wf_jn.c
@@ -0,0 +1,138 @@
+/* wf_jn.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.
+ * ====================================================
+ */
+
+#include "fdlibm.h"
+#include <errno.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;
+	struct exception exc;
+	z = __ieee754_jnf(n,x);
+	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
+	if(fabsf(x)>(float)X_TLOSS) {
+	    /* jnf(|x|>X_TLOSS) */
+            exc.type = TLOSS;
+            exc.name = "jnf";
+	    exc.err = 0;
+	    exc.arg1 = (double)n;
+	    exc.arg2 = (double)x;
+            exc.retval = 0.0;
+            if (_LIB_VERSION == _POSIX_)
+                errno = ERANGE;
+            else if (!matherr(&exc)) {
+               errno = ERANGE;
+            }        
+	    if (exc.err != 0)
+	       errno = exc.err;
+            return exc.retval; 
+	} 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;
+	struct exception exc;
+	z = __ieee754_ynf(n,x);
+	if(_LIB_VERSION == _IEEE_ || isnanf(x) ) return z;
+        if(x <= (float)0.0){
+	    /* ynf(n,0) = -inf or ynf(x<0) = NaN */
+#ifndef HUGE_VAL 
+#define HUGE_VAL inf
+	    double inf = 0.0;
+
+	    SET_HIGH_WORD(inf,0x7ff00000);	/* set inf to infinite */
+#endif
+	    exc.type = DOMAIN;	/* should be SING for IEEE */
+	    exc.name = "ynf";
+	    exc.err = 0;
+	    exc.arg1 = (double)n;
+	    exc.arg2 = (double)x;
+	    if (_LIB_VERSION == _SVID_)
+	        exc.retval = -HUGE;
+	    else
+	        exc.retval = -HUGE_VAL;
+	    if (_LIB_VERSION == _POSIX_)
+	        errno = EDOM;
+	    else if (!matherr(&exc)) {
+	        errno = EDOM;
+	    }
+	    if (exc.err != 0)
+	       errno = exc.err;
+            return (float)exc.retval; 
+        }
+	if(x>(float)X_TLOSS) {
+	    /* ynf(x>X_TLOSS) */
+            exc.type = TLOSS;
+            exc.name = "ynf";
+	    exc.err = 0;
+	    exc.arg1 = (double)n;
+	    exc.arg2 = (double)x;
+            exc.retval = 0.0;
+            if (_LIB_VERSION == _POSIX_)
+                errno = ERANGE;
+            else if (!matherr(&exc)) {
+                errno = ERANGE;
+            }        
+	    if (exc.err != 0)
+	       errno = exc.err;
+            return (float)exc.retval; 
+	} else
+	    return z;
+#endif
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+#ifdef __STDC__
+	double jn(int n, double x)
+#else
+	double jn(n,x)
+	double x; int n;
+#endif
+{
+	return (double) jnf(n, (float) x);
+}
+
+#ifdef __STDC__
+	double yn(int n, double x)
+#else
+	double yn(n,x)
+	double x; int n;
+#endif
+{
+	return (double) ynf(n, (float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */