1 files changed, 74 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttowardf.c b/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttowardf.c
new file mode 100644
index 0000000000..ae7538942f
--- /dev/null
+++ b/REORG.TODO/sysdeps/ieee754/ldbl-96/s_nexttowardf.c
@@ -0,0 +1,74 @@
+/* s_nexttowardf.c -- float version of s_nextafter.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: $";
+#endif
+
+#include <errno.h>
+#include <math.h>
+#include <math_private.h>
+#include <float.h>
+
+float __nexttowardf(float x, long double y)
+{
+	int32_t hx,ix,iy;
+	u_int32_t hy,ly,esy;
+
+	GET_FLOAT_WORD(hx,x);
+	GET_LDOUBLE_WORDS(esy,hy,ly,y);
+	ix = hx&0x7fffffff;		/* |x| */
+	iy = esy&0x7fff;		/* |y| */
+
+	if((ix>0x7f800000) ||			/* 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==0) {				/* x == 0 */
+	    float u;
+	    SET_FLOAT_WORD(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 */
+		hx -= 1;
+	    } else {				/* x < y, x += ulp */
+		hx += 1;
+	    }
+	} else {				/* x < 0 */
+	    if(x < y) {				/* x -= ulp */
+		hx -= 1;
+	    } else {				/* x > y, x += ulp */
+		hx += 1;
+	    }
+	}
+	hy = hx&0x7f800000;
+	if(hy>=0x7f800000) {
+	  float u = x+x;			/* overflow  */
+	  math_force_eval (u);
+	  __set_errno (ERANGE);
+	}
+	if(hy<0x00800000) {
+	    float u = x*x;			/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
+	    __set_errno (ERANGE);
+	}
+	SET_FLOAT_WORD(x,hx);
+	return x;
+}
+weak_alias (__nexttowardf, nexttowardf)