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52066eae 1// { dg-do run { target c++11 } }
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8d9254fc 3// Copyright (C) 2007-2020 Free Software Foundation, Inc.
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4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
748086b7 8// Free Software Foundation; either version 3, or (at your option)
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9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
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17// with this library; see the file COPYING3. If not see
18// <http://www.gnu.org/licenses/>.
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19
20// Tuple
21
22#include <tuple>
5e108459 23#include <utility> // for pair
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24#include <testsuite_hooks.h>
25
26using namespace std;
27
28// A simple class without conversions to check some things
29struct foo
30{ };
31
32void
33test_constructors()
34{
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35 int x1=0,x2=0;
36 const int &z1=x1;
37
38 // Test empty constructor
395c9e79 39 tuple<> ta __attribute__((unused));
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40 tuple<int,int> tb;
41 // Test construction from values
42 tuple<int,int> tc(x1,x2);
43 tuple<int,int&> td(x1,x2);
44 tuple<const int&> te(z1);
45 x1=1;
46 x2=1;
47 VERIFY(get<0>(td) == 0 && get<1>(td) == 1 && get<0>(te) == 1);
48
49 // Test identical tuple copy constructor
50 tuple<int,int> tf(tc);
51 tuple<int,int> tg(td);
52 tuple<const int&> th(te);
53 // Test different tuple copy constructor
54 tuple<int,double> ti(tc);
55 tuple<int,double> tj(td);
56 // Test constructing from a pair
57 pair<int,int> pair1(1,1);
58 const pair<int,int> pair2(pair1);
59 tuple<int,int> tl(pair1);
60 tuple<int,const int&> tm(pair1);
61 tuple<int,int> tn(pair2);
62 tuple<int,const int&> to(pair2);
63}
64
65int
66main(void)
67{
68 //test construction
69 typedef tuple<int,int,int,int,int,int,int,int,int,int> type1;
70 type1 a(0, 0, 0, 0, 0, 0, 0, 0, 0, 1);
71 type1 b(0, 0, 0, 0, 0, 0, 0, 0, 0, 2);
72 type1 c(a);
73 typedef tuple<int,int,int,int,int,int,int,int,int,char> type2;
74 type2 d(0, 0, 0, 0, 0, 0, 0, 0, 0, 3);
75 type1 e(d);
76 typedef tuple<foo,int,int,int,int,int,int,int,int,foo> type3;
77 // get
78 VERIFY(get<9>(a)==1 && get<9>(b)==2);
79 // comparisons
80 VERIFY(a==a && !(a!=a) && a<=a && a>=a && !(a<a) && !(a>a));
81 VERIFY(!(a==b) && a!=b && a<=b && a<b && !(a>=b) && !(a>b));
82 //tie
83 {
84 int i = 0;
85 tie(ignore, ignore, ignore, ignore, ignore, ignore, ignore, ignore,
86 ignore, i) = a;
87 VERIFY(i == 1);
88 }
89 //test_assignment
90 a=d;
91 a=b;
92 //make_tuple
93 make_tuple(0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
94
95 //tuple_size
96 VERIFY(tuple_size<type3>::value == 10);
97 //tuple_element
98 {
99 foo q1;
100 tuple_element<0,type3>::type q2(q1);
101 tuple_element<9,type3>::type q3(q1);
102 }
103}