1/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
2 * Use, modification and distribution is subject to the
3 * Boost Software License, Version 1.0. (See accompanying
4 * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
5 * Author: Jeff Garland
6 */
7
8#include "boost/config.hpp"
9#include "boost/date_time/constrained_value.hpp"
10#include "testfrmwk.hpp"
11#include <iostream>
12
13class bad_day {}; //exception type
14
15
16class day_value_policies
17{
18public:
19 typedef unsigned int value_type;
20 static BOOST_CXX14_CONSTEXPR unsigned int min BOOST_PREVENT_MACRO_SUBSTITUTION () { return 0; };
21 static BOOST_CXX14_CONSTEXPR unsigned int max BOOST_PREVENT_MACRO_SUBSTITUTION () { return 31;};
22 static void on_error(unsigned int&, unsigned int, boost::CV::violation_enum)
23 {
24 throw bad_day();
25 }
26};
27
28struct range_error {}; //exception type
29typedef boost::CV::simple_exception_policy<int,1,10,range_error> one_to_ten_range_policy;
30
31int main()
32{
33 using namespace boost::CV;
34 constrained_value<day_value_policies> cv1(0), cv2(31);
35 check(testname: "not equal", testcond: cv1 != cv2);
36 check(testname: "equal", testcond: cv1 == cv1);
37 check(testname: "greater", testcond: cv2 > cv1);
38 check(testname: "greater or equal ", testcond: cv2 >= cv1);
39 //various running of the conversion operator
40 std::cout << cv1 << std::endl;
41 unsigned int i = cv1;
42 check(testname: "test conversion", testcond: i == cv1);
43
44#ifdef BOOST_NO_CXX14_CONSTEXPR
45 check("constexpr not configured", true);
46#else
47 //check constexpr case
48 constexpr constrained_value<day_value_policies> cv3(1);
49 static_assert(cv3 == 1, "constexpr construction/conversion");
50 check(testname: "constexpr constrained value construct and equal", testcond: true);
51#endif
52
53 try {
54 constrained_value<one_to_ten_range_policy> cv3(11);
55 std::cout << "Not Reachable: " << cv3 << " ";
56 check(testname: "got range exception max", testcond: false);
57 }
58 catch(range_error&) {
59 check(testname: "got range exception max", testcond: true);
60 }
61
62 try {
63 constrained_value<one_to_ten_range_policy> cv3(0);
64 std::cout << "Not Reachable: " << cv3 << " ";
65 check(testname: "got range exception min", testcond: false);
66 }
67 catch(range_error&) {
68 check(testname: "got range exception min", testcond: true);
69 }
70
71 try {
72 constrained_value<one_to_ten_range_policy> cv4(1);
73 cv4 = 12;
74 check(testname: "range exception on assign", testcond: false);
75 }
76 catch(range_error&) {
77 check(testname: "range exception on assign", testcond: true);
78 }
79
80 return printTestStats();
81}
82
83

source code of boost/libs/date_time/test/testconstrained_value.cpp