1 /*
2 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
3 *
4 * This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this
6 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
7 *
8 * See the COPYRIGHT file distributed with this work for additional
9 * information regarding copyright ownership.
10 */
11
12 /*! \file */
13
14 #include <inttypes.h>
15 #include <stdbool.h>
16
17 #include <isc/serial.h>
18
19 bool
isc_serial_lt(uint32_t a,uint32_t b)20 isc_serial_lt(uint32_t a, uint32_t b) {
21 /*
22 * Undefined => false
23 */
24 if (a == (b ^ 0x80000000U)) {
25 return (false);
26 }
27 return (((int32_t)(a - b) < 0) ? true : false);
28 }
29
30 bool
isc_serial_gt(uint32_t a,uint32_t b)31 isc_serial_gt(uint32_t a, uint32_t b) {
32 return (((int32_t)(a - b) > 0) ? true : false);
33 }
34
35 bool
isc_serial_le(uint32_t a,uint32_t b)36 isc_serial_le(uint32_t a, uint32_t b) {
37 return ((a == b) ? true : isc_serial_lt(a, b));
38 }
39
40 bool
isc_serial_ge(uint32_t a,uint32_t b)41 isc_serial_ge(uint32_t a, uint32_t b) {
42 return ((a == b) ? true : isc_serial_gt(a, b));
43 }
44
45 bool
isc_serial_eq(uint32_t a,uint32_t b)46 isc_serial_eq(uint32_t a, uint32_t b) {
47 return ((a == b) ? true : false);
48 }
49
50 bool
isc_serial_ne(uint32_t a,uint32_t b)51 isc_serial_ne(uint32_t a, uint32_t b) {
52 return ((a != b) ? true : false);
53 }
54