// Set iterator invalidation tests
// Copyright (C) 2003-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// .
#include
#include
#include
using __gnu_debug::set;
using std::advance;
// Erase
void test02()
{
set v;
for (int i = 0; i < 20; ++i)
v.insert(i);
// Single element erase (middle)
set::iterator before = v.begin();
set::iterator at = before;
advance(at, 3);
set::iterator after = at;
++after;
v.erase(at);
VERIFY(before._M_dereferenceable());
VERIFY(at._M_singular());
VERIFY(after._M_dereferenceable());
// Multiple element erase
before = v.begin();
at = before;
advance(at, 3);
after = at;
advance(after, 4);
v.erase(at, after);
VERIFY(before._M_dereferenceable());
VERIFY(at._M_singular());
// clear()
before = v.begin();
set::iterator finish = v.end();
VERIFY(before._M_dereferenceable());
v.clear();
VERIFY(before._M_singular());
VERIFY(!finish._M_singular() && !finish._M_dereferenceable());
}
int main()
{
test02();
return 0;
}