1 files changed, 86 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttoward.c b/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttoward.c
new file mode 100644
index 0000000000..3d0382eac9
--- /dev/null
+++ b/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttoward.c
@@ -0,0 +1,86 @@
+/* s_nexttoward.c
+ * Conversion from s_nextafter.c by Ulrich Drepper, Cygnus Support,
+ * drepper@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: $";
+#endif
+
+/* IEEE functions
+ *	nexttoward(x,y)
+ *	return the next machine floating-point number of x in the
+ *	direction toward y.
+ *   Special cases:
+ */
+
+#include <errno.h>
+#include <math.h>
+#include <math_private.h>
+#include <float.h>
+
+double __nexttoward(double x, long double y)
+{
+	int32_t hx,ix,iy;
+	u_int32_t lx,hy,ly,esy;
+
+	EXTRACT_WORDS(hx,lx,x);
+	GET_LDOUBLE_WORDS(esy,hy,ly,y);
+	ix = hx&0x7fffffff;		/* |x| */
+	iy = esy&0x7fff;		/* |y| */
+
+	if(((ix>=0x7ff00000)&&((ix-0x7ff00000)|lx)!=0) ||   /* x is nan */
+	   ((iy>=0x7fff)&&(hy|ly)!=0))        /* y is nan */
+	   return x+y;
+	if((long double) x==y) return y;	/* x=y, return y */
+	if((ix|lx)==0) {			/* x == 0 */
+	    double u;
+	    INSERT_WORDS(x,(esy&0x8000)<<16,1); /* return +-minsub */
+	    u = math_opt_barrier (x);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
+	}
+	if(hx>=0) {				/* x > 0 */
+	    if (x > y) {			/* x -= ulp */
+		if(lx==0) hx -= 1;
+		lx -= 1;
+	    } else {				/* x < y, x += ulp */
+		lx += 1;
+		if(lx==0) hx += 1;
+	    }
+	} else {				/* x < 0 */
+	    if (x < y) {			/* x -= ulp */
+		if(lx==0) hx -= 1;
+		lx -= 1;
+	    } else {				/* x > y, x += ulp */
+		lx += 1;
+		if(lx==0) hx += 1;
+	    }
+	}
+	hy = hx&0x7ff00000;
+	if(hy>=0x7ff00000) {
+	  double u = x+x;			/* overflow  */
+	  math_force_eval (u);
+	  __set_errno (ERANGE);
+	}
+	if(hy<0x00100000) {
+	    double u = x*x;			/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
+	    __set_errno (ERANGE);
+	}
+	INSERT_WORDS(x,hx,lx);
+	return x;
+}
+weak_alias (__nexttoward, nexttoward)