1 files changed, 125 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/i386/fpu/s_nextafterl.c b/REORG.TODO/sysdeps/i386/fpu/s_nextafterl.c
new file mode 100644
index 0000000000..600ad7a8d3
--- /dev/null
+++ b/REORG.TODO/sysdeps/i386/fpu/s_nextafterl.c
@@ -0,0 +1,125 @@
+/* s_nextafterl.c -- long double version of s_nextafter.c.
+ * Special version for i387.
+ * Conversion to long double 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
+ *	nextafterl(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>
+
+long double __nextafterl(long double x, long double y)
+{
+	u_int32_t hx,hy,ix,iy;
+	u_int32_t lx,ly;
+	int32_t esx,esy;
+
+	GET_LDOUBLE_WORDS(esx,hx,lx,x);
+	GET_LDOUBLE_WORDS(esy,hy,ly,y);
+	ix = esx&0x7fff;		/* |x| */
+	iy = esy&0x7fff;		/* |y| */
+
+	/* Intel's extended format has the normally implicit 1 explicit
+	   present.  Sigh!  */
+	if(((ix==0x7fff)&&(((hx&0x7fffffff)|lx)!=0)) ||   /* x is nan */
+	   ((iy==0x7fff)&&(((hy&0x7fffffff)|ly)!=0)))     /* y is nan */
+	   return x+y;
+	if(x==y) return y;		/* x=y, return y */
+	if((ix|hx|lx)==0) {			/* x == 0 */
+	    long double u;
+	    SET_LDOUBLE_WORDS(x,esy&0x8000,0,1);/* return +-minsubnormal */
+	    u = math_opt_barrier (x);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
+	}
+	if(esx>=0) {			/* x > 0 */
+	    if(esx>esy||((esx==esy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
+	      /* x > y, x -= ulp */
+		if(lx==0) {
+		    if (hx <= 0x80000000) {
+		      if (esx == 0) {
+			--hx;
+		      } else {
+			esx -= 1;
+			hx = hx - 1;
+			if (esx > 0)
+			  hx |= 0x80000000;
+		      }
+		    } else
+		      hx -= 1;
+		}
+		lx -= 1;
+	    } else {				/* x < y, x += ulp */
+		lx += 1;
+		if(lx==0) {
+		    hx += 1;
+		    if (hx==0 || (esx == 0 && hx == 0x80000000)) {
+			esx += 1;
+			hx |= 0x80000000;
+		    }
+		}
+	    }
+	} else {				/* x < 0 */
+	    if(esy>=0||(esx>esy||((esx==esy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){
+	      /* x < y, x -= ulp */
+		if(lx==0) {
+		    if (hx <= 0x80000000 && esx != 0xffff8000) {
+			esx -= 1;
+			hx = hx - 1;
+			if ((esx&0x7fff) > 0)
+			  hx |= 0x80000000;
+		    } else
+		      hx -= 1;
+		}
+		lx -= 1;
+	    } else {				/* x > y, x += ulp */
+		lx += 1;
+		if(lx==0) {
+		    hx += 1;
+		    if (hx==0 || (esx == 0xffff8000 && hx == 0x80000000)) {
+			esx += 1;
+			hx |= 0x80000000;
+		    }
+		}
+	    }
+	}
+	esy = esx&0x7fff;
+	if(esy==0x7fff) {
+	    long double u = x + x;	/* overflow  */
+	    math_force_eval (u);
+	    __set_errno (ERANGE);
+	}
+	if(esy==0) {
+	    long double u = x*x;		/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
+	    __set_errno (ERANGE);
+	}
+	SET_LDOUBLE_WORDS(x,esx,hx,lx);
+	return x;
+}
+weak_alias (__nextafterl, nextafterl)
+strong_alias (__nextafterl, __nexttowardl)
+weak_alias (__nextafterl, nexttowardl)