1 // Deque iterator invalidation tests
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20 #include <debug/deque>
21 #include <testsuite_hooks.h>
23 using __gnu_debug::deque;
32 // Insert a single element
33 deque<int>::iterator before = v.begin() + 6;
34 deque<int>::iterator at = before + 1;
35 deque<int>::iterator after = at;
36 at = v.insert(at, 42);
37 VERIFY(before._M_singular());
38 VERIFY(at._M_dereferenceable());
39 VERIFY(after._M_singular());
41 // Insert multiple copies
42 before = v.begin() + 6;
46 VERIFY(before._M_singular());
47 VERIFY(at._M_singular());
49 // Insert iterator range
50 static int data[] = { 2, 3, 5, 7 };
51 before = v.begin() + 6;
53 v.insert(at, &data[0], &data[0] + 4);
54 VERIFY(before._M_singular());
55 VERIFY(at._M_singular());