1 files changed, 73 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/ieee754/flt-32/s_nextafterf.c b/REORG.TODO/sysdeps/ieee754/flt-32/s_nextafterf.c
new file mode 100644
index 0000000000..625d54b768
--- /dev/null
+++ b/REORG.TODO/sysdeps/ieee754/flt-32/s_nextafterf.c
@@ -0,0 +1,73 @@
+/* s_nextafterf.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: s_nextafterf.c,v 1.4 1995/05/10 20:48:01 jtc Exp $";
+#endif
+
+#include <errno.h>
+#include <math.h>
+#include <math_private.h>
+#include <float.h>
+
+float __nextafterf(float x, float y)
+{
+	int32_t hx,hy,ix,iy;
+
+	GET_FLOAT_WORD(hx,x);
+	GET_FLOAT_WORD(hy,y);
+	ix = hx&0x7fffffff;		/* |x| */
+	iy = hy&0x7fffffff;		/* |y| */
+
+	if((ix>0x7f800000) ||   /* x is nan */
+	   (iy>0x7f800000))     /* y is nan */
+	   return x+y;
+	if(x==y) return y;		/* x=y, return y */
+	if(ix==0) {				/* x == 0 */
+	    float u;
+	    SET_FLOAT_WORD(x,(hy&0x80000000)|1);/* return +-minsubnormal */
+	    u = math_opt_barrier (x);
+	    u = u*u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
+	}
+	if(hx>=0) {				/* x > 0 */
+	    if(hx>hy) {				/* x > y, x -= ulp */
+		hx -= 1;
+	    } else {				/* x < y, x += ulp */
+		hx += 1;
+	    }
+	} else {				/* x < 0 */
+	    if(hy>=0||hx>hy){			/* 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 (__nextafterf, nextafterf)