23.list.insert.stdcxx-331.cpp

Go to the documentation of this file.

 
#include <list>
#include <cassert>
 
static int throw_inx = -1;
 
class ListItem
{
public:
    static int count_;
 
    void test ()
    {
        if (throw_inx == count_)
            throw count_;
 
        ++count_;
    }
 
    ListItem () { test (); }
 
    ListItem (const ListItem&) { test (); }
 
    ~ListItem () { --count_; }
};
 
int ListItem::count_ = 0;
 
 
int main ()
{
    typedef std::list<ListItem> List;
    ListItem items [20];
    List lst (1);
 
    bool thrown = false;
    throw_inx = 10;
 
    List::iterator it = lst.begin ();
    ListItem & ref = *it;
 
    try {
        ListItem::count_ = 0;
        lst.insert (it, 20, items [0]);
    } catch (...) {
        thrown = true;
    }
 
    assert (thrown);
    assert (it == lst.begin ());
    assert (&ref == &*lst.begin ());
    assert (1 == lst.size ());
    assert (0 == ListItem::count_);
 
    try {
        ListItem::count_ = 0;
        lst.insert (it, items, items + 20);
    } catch (...) {
        thrown = true;
    }
 
    assert (thrown);
    assert (it == lst.begin ());
    assert (&ref == &*lst.begin ());
    assert (1 == lst.size ());
    assert (0 == ListItem::count_);
 
    return 0;
}