]>
Commit | Line | Data |
---|---|---|
99dee823 | 1 | // Copyright (C) 2004-2021 Free Software Foundation, Inc. |
278d4cc4 CJ |
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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
278d4cc4 CJ |
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 | |
748086b7 JJ |
15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
278d4cc4 | 17 | |
8ef20cae MM |
18 | // { dg-options "-DTEST_DEPTH=10" { target simulator } } |
19 | ||
278d4cc4 CJ |
20 | // 25 algorithms, search_n |
21 | ||
22 | #include <algorithm> | |
23 | #include <functional> | |
24 | #include <testsuite_hooks.h> | |
25 | #include <testsuite_iterators.h> | |
26 | ||
8ef20cae | 27 | #ifndef TEST_DEPTH |
278d4cc4 | 28 | #define TEST_DEPTH 14 |
8ef20cae MM |
29 | #endif |
30 | ||
278d4cc4 CJ |
31 | int array1[11] = {0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0}; |
32 | int array2[TEST_DEPTH]; | |
33 | ||
4b47d655 | 34 | int pred_count; |
278d4cc4 CJ |
35 | bool |
36 | pred(int i, int j) | |
37 | { | |
4b47d655 | 38 | ++pred_count; |
278d4cc4 CJ |
39 | return i == j; |
40 | } | |
41 | ||
42 | bool | |
43 | lexstep(int* start, int length) | |
44 | { | |
45 | int i = 0; | |
46 | int carry = 1; | |
47 | while(i < length && carry) | |
48 | { | |
49 | if(start[i] == 1) | |
50 | start[i] = 0; | |
51 | else | |
52 | { | |
53 | start[i] = 1; | |
54 | carry = 0; | |
55 | } | |
56 | i++; | |
57 | } | |
58 | return !carry; | |
59 | } | |
60 | ||
bd1a56a0 BK |
61 | int main() |
62 | { | |
63 | using __gnu_test::test_container; | |
64 | using __gnu_test::random_access_iterator_wrapper; | |
65 | using __gnu_test::bidirectional_iterator_wrapper; | |
66 | using __gnu_test::forward_iterator_wrapper; | |
67 | ||
68 | using std::search_n; | |
278d4cc4 | 69 | |
278d4cc4 CJ |
70 | test_container<int,forward_iterator_wrapper> con(array1,array1 + 10); |
71 | VERIFY(search_n(con.end(), con.end(), 0, 1) == con.end()); | |
72 | VERIFY(search_n(con.end(), con.end(), 1, 1) == con.end()); | |
73 | VERIFY(search_n(con.begin(), con.end(), 1, 1).ptr == array1 + 1); | |
74 | VERIFY(search_n(con.begin(), con.end(), 2, 1).ptr == array1 + 4); | |
75 | VERIFY(search_n(con.begin(), con.end(), 3, 1).ptr == array1 + 7); | |
76 | VERIFY(search_n(con.begin(), con.end(), 3, 0) == con.end()); | |
77 | ||
78 | // Now do a brute-force comparison of the different types | |
79 | for(int i = 0; i < TEST_DEPTH; i++) | |
80 | { | |
81 | for(int j = 0; j < i; j++) | |
82 | array2[i] = 0; | |
83 | do { | |
84 | for(int j = 0; j < i; j++) | |
85 | { | |
86 | test_container<int, forward_iterator_wrapper> | |
87 | forwardcon(array2, array2 + i); | |
0e994557 | 88 | test_container<int, random_access_iterator_wrapper> |
278d4cc4 CJ |
89 | randomcon(array2, array2 + i); |
90 | test_container<int, bidirectional_iterator_wrapper> | |
91 | bidircon(array2, array2 + i); | |
92 | ||
93 | int* t1 = search_n(forwardcon.begin(), | |
94 | forwardcon.end(), j, 1).ptr; | |
4b47d655 | 95 | pred_count = 0; |
278d4cc4 CJ |
96 | int* t2 = search_n(forwardcon.begin(), |
97 | forwardcon.end(), j, 1, pred).ptr; | |
4b47d655 | 98 | VERIFY(pred_count <= i); |
278d4cc4 CJ |
99 | int* t3 = search_n(bidircon.begin(), |
100 | bidircon.end(), j, 1).ptr; | |
4b47d655 | 101 | pred_count = 0; |
278d4cc4 CJ |
102 | int* t4 = search_n(bidircon.begin(), |
103 | bidircon.end(), j, 1, pred).ptr; | |
4b47d655 | 104 | VERIFY(pred_count <= i); |
278d4cc4 CJ |
105 | int* t5 = search_n(randomcon.begin(), |
106 | randomcon.end(), j, 1).ptr; | |
4b47d655 | 107 | pred_count = 0; |
278d4cc4 CJ |
108 | int* t6 = search_n(randomcon.begin(), |
109 | randomcon.end(), j, 1, pred).ptr; | |
4b47d655 | 110 | VERIFY(pred_count <= i); |
278d4cc4 CJ |
111 | VERIFY((t1 == t2) && (t2 == t3) && (t3 == t4) && |
112 | (t4 == t5) && (t5 == t6)); | |
113 | } | |
114 | } | |
115 | while(lexstep(array2, i)); | |
116 | } | |
117 | return 0; | |
118 | } |