1// Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland.
2//
3// Use, modification and distribution is subject to the Boost Software License,
4// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5// http://www.boost.org/LICENSE_1_0.txt)
6
7#include <boost/core/ignore_unused.hpp>
8
9BOOST_CXX14_CONSTEXPR int test_fun(int a)
10{
11 boost::ignore_unused(a);
12 return 0;
13}
14
15int main()
16{
17 {
18 int a;
19 boost::ignore_unused(a);
20 }
21 {
22 int a, b;
23 boost::ignore_unused(a, b);
24 }
25 {
26 int a, b, c;
27 boost::ignore_unused(a, b, c);
28 }
29 {
30 int a, b, c, d;
31 boost::ignore_unused(a, b, c, d);
32 }
33 {
34 int a, b, c, d, e;
35 boost::ignore_unused(a, b, c, d, e);
36 }
37
38 {
39 typedef int a;
40 boost::ignore_unused<a>();
41 }
42 {
43 typedef int a;
44 typedef int b;
45 boost::ignore_unused<a, b>();
46 }
47 {
48 typedef int a;
49 typedef int b;
50 typedef int c;
51 boost::ignore_unused<a, b, c>();
52 }
53 {
54 typedef int a;
55 typedef int b;
56 typedef int c;
57 typedef int d;
58 boost::ignore_unused<a, b, c, d>();
59 }
60 {
61 typedef int a;
62 typedef int b;
63 typedef int c;
64 typedef int d;
65 typedef int e;
66 boost::ignore_unused<a, b, c, d, e>();
67 }
68
69 {
70 BOOST_CXX14_CONSTEXPR const int a = test_fun(a: 0);
71 boost::ignore_unused(a);
72 }
73
74 return 0;
75}
76

source code of boost/libs/core/test/ignore_unused_test.cpp