usr/src/lib/libc/port/gen/lltostr.c
changeset 0 68f95e015346
child 6812 febeba71273d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/lib/libc/port/gen/lltostr.c	Tue Jun 14 00:00:00 2005 -0700
@@ -0,0 +1,105 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ *	lltostr -- convert long long to decimal string
+ *
+ *	char *
+ *	lltostr(value, ptr)
+ *	long long value;
+ *	char *ptr;
+ *
+ *	Ptr is assumed to point to the byte following a storage area
+ *	into which the decimal representation of "value" is to be
+ *	placed as a string.  Lltostr converts "value" to decimal and
+ *	produces the string, and returns a pointer to the beginning
+ *	of the string.  No leading zeroes are produced, and no
+ *	terminating null is produced.  The low-order digit of the
+ *	result always occupies memory position ptr-1.
+ *	Lltostr's behavior is undefined if "value" is negative.  A single
+ *	zero digit is produced if "value" is zero.
+ */
+
+#pragma weak lltostr = _lltostr
+#pragma weak ulltostr = _ulltostr
+
+#include "synonyms.h"
+#include <sys/types.h>
+#include <stdlib.h>
+
+char *
+lltostr(longlong_t value, char *ptr)
+{
+	longlong_t t;
+
+#ifdef _ILP32
+	if (!(0xffffffff00000000ULL & value)) {
+		ulong_t t, val = (ulong_t)value;
+
+		do {
+			*--ptr = (char)('0' + val - 10 * (t = val / 10));
+		} while ((val = t) != 0);
+
+		return (ptr);
+	}
+#endif
+
+	do {
+		*--ptr = (char)('0' + value - 10 * (t = value / 10));
+	} while ((value = t) != 0);
+
+	return (ptr);
+}
+
+char *
+ulltostr(u_longlong_t value, char *ptr)
+{
+	u_longlong_t t;
+
+#ifdef _ILP32
+	if (!(0xffffffff00000000ULL & value)) {
+		ulong_t t, val = (ulong_t)value;
+
+		do {
+			*--ptr = (char)('0' + val - 10 * (t = val / 10));
+		} while ((val = t) != 0);
+
+		return (ptr);
+	}
+#endif
+
+	do {
+		*--ptr = (char)('0' + value - 10 * (t = value / 10));
+	} while ((value = t) != 0);
+
+	return (ptr);
+}