void apply(Cont1& c, PtrMemFun1 f) {
typename Cont1::iterator it = c.begin();
while(it != c.end()) {
//(it->*f)(); // Compact form
((*it).*f)(); // Alternate form
it++;
}
}
void assert_contents(const Cont1 &c1, const Cont2 &c2)
{ return assert_range(c1.begin(), c1.end(), c2.begin(), c2.end()); }
void CopyContainer(Cont1& cont1, Cont2& cont2)
{
std::copy(cont1.begin(), cont1.end(), std::back_inserter(cont2));
}