1 // Copyright (C) 2018-2019 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
13
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
17
18 // { dg-do run { target c++11 } }
19
20 #include <valarray>
21 #include <testsuite_hooks.h>
22
23 const std::valarray<int> v{
24 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
25 };
26
27 bool
all_of(const std::valarray<bool> & vals)28 all_of(const std::valarray<bool>& vals)
29 {
30 for (bool b : vals)
31 if (!b)
32 return false;
33 return true;
34 }
35
36 void
test01()37 test01()
38 {
39 // PR libstdc++/83860
40 const std::valarray<int> va(v), vb(v), vc(v);
41 auto sum = va + vb + vc;
42 std::valarray<int> vsum = sum;
43 VERIFY( all_of( vsum == (3 * v) ) );
44 }
45
46 void
test02()47 test02()
48 {
49 auto neg = -(-v);
50 std::valarray<int> vneg = neg;
51 VERIFY( all_of( vneg == v ) );
52 }
53
54 void
test03()55 test03()
56 {
57 const std::valarray<int> va(v), vb(v);
58 auto diff = va + -vb;
59 std::valarray<int> vdiff = diff;
60 VERIFY( all_of( vdiff == (va - vb) ) );
61 }
62
63 void
test04()64 test04()
65 {
66 const std::valarray<int> va(v), vb(v);
67 auto sum = -va + -vb;
68 std::valarray<int> vsum = sum;
69 VERIFY( all_of( vsum == (-2 * v) ) );
70 }
71
72 void
test05()73 test05()
74 {
75 const std::valarray<int> va(v), vb(v);
76 auto sum = -(-va + -vb);
77 std::valarray<int> vsum = sum;
78 VERIFY( all_of( vsum == (2 * v) ) );
79 }
80
81 void
test06()82 test06()
83 {
84 auto prod = 3 * +v * 2;
85 std::valarray<int> vprod = prod;
86 VERIFY( all_of( vprod == (6 * v) ) );
87 }
88
89 void
test07()90 test07()
91 {
92 const std::valarray<int> va(v), vb(v);
93 auto valfun = [](int i) { return i; };
94 auto reffun = [](const int& i) { return i; };
95 auto sum = (va.apply(valfun) + vb.apply(reffun));
96 std::valarray<int> vsum = sum;
97 VERIFY( all_of( vsum == (va + vb) ) );
98 }
99
100 int
main()101 main()
102 {
103 test01();
104 test02();
105 test03();
106 test04();
107 test05();
108 test06();
109 test07();
110 }
111