1 // { dg-do run { target c++11 } }
2
3 // Copyright (C) 2011-2018 Free Software Foundation, Inc.
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
8 // Free Software Foundation; either version 3, or (at your option)
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
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 // range insert
21
22 #include <utility>
23 #include <tuple>
24 #include <vector>
25 #include <unordered_map>
26 #include <testsuite_hooks.h>
27
28 class PathPoint
29 {
30 public:
PathPoint(char t,const std::vector<double> & c)31 PathPoint(char t, const std::vector<double>& c)
32 : type(t), coords(c) { }
PathPoint(char t,std::vector<double> && c)33 PathPoint(char t, std::vector<double>&& c)
34 : type(t), coords(std::move(c)) { }
getType() const35 char getType() const { return type; }
getCoords() const36 const std::vector<double>& getCoords() const { return coords; }
37 private:
38 char type;
39 std::vector<double> coords;
40 };
41
test01()42 void test01()
43 {
44 typedef std::unordered_map<char, std::vector<double>> Map;
45 Map m;
46
47 std::vector<double> coord1 = { 0.0, 1.0, 2.0 };
48
49 auto ret = m.emplace('a', coord1);
50 VERIFY( ret.second );
51 VERIFY( m.size() == 1 );
52 VERIFY( ret.first->first == 'a' );
53
54 coord1[0] = 3.0;
55 ret = m.emplace('a', coord1);
56 VERIFY( !ret.second );
57 VERIFY( m.size() == 1 );
58 VERIFY( ret.first->first == 'a' );
59 VERIFY( ret.first->second[0] == 0.0 );
60
61 auto it = m.emplace_hint(m.begin(), 'b', coord1);
62 VERIFY( it != m.end() );
63 VERIFY( it->first == 'b' );
64 VERIFY( it->second[0] == 3.0 );
65
66 double *px = &coord1[0];
67 ret = m.emplace('c', std::move(coord1));
68 VERIFY( ret.second );
69 VERIFY( ret.first->first == 'c' );
70 VERIFY( &(ret.first->second[0]) == px );
71 }
72
test02()73 void test02()
74 {
75 using namespace std;
76 typedef unordered_map<char, PathPoint> Map;
77 Map m;
78
79 std::vector<double> coord1 = { 0.0, 1.0, 2.0 };
80
81 auto ret = m.emplace(piecewise_construct,
82 make_tuple('a'), make_tuple('a', coord1));
83 VERIFY( ret.second );
84 VERIFY( m.size() == 1 );
85 VERIFY( ret.first->first == 'a' );
86
87 coord1[0] = 3.0;
88 ret = m.emplace(piecewise_construct,
89 make_tuple('a'), make_tuple( 'b', coord1));
90 VERIFY( !ret.second );
91 VERIFY( m.size() == 1 );
92 VERIFY( ret.first->first == 'a' );
93 VERIFY( ret.first->second.getCoords()[0] == 0.0 );
94
95 auto it = m.emplace_hint(m.begin(), piecewise_construct,
96 make_tuple('b'), make_tuple('c', coord1));
97 VERIFY( it != m.end() );
98 VERIFY( it->first == 'b' );
99 VERIFY( it->second.getCoords()[0] == 3.0 );
100
101 double *px = &coord1[0];
102 ret = m.emplace(piecewise_construct,
103 make_tuple('c'), make_tuple('d', move(coord1)));
104 VERIFY( ret.second );
105 VERIFY( ret.first->first == 'c' );
106 VERIFY( &(ret.first->second.getCoords()[0]) == px );
107 }
108
main()109 int main()
110 {
111 test01();
112 test02();
113 return 0;
114 }
115