double Basket::total_receipt(ostream &os) const { double sum = 0.0; for (auto iter = items.cbegin(); iter != items.cend(); iter = items.upper_bound(*iter)) { sum += print_total(os, **iter, items.count(*iter)); } os << "Total Sale: " << sum << endl; return sum; }
int main() { { typedef int V; V ar[] = { 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8 }; std::multiset<int> m(ar, ar+sizeof(ar)/sizeof(ar[0])); assert(std::distance(m.begin(), m.end()) == m.size()); assert(std::distance(m.rbegin(), m.rend()) == m.size()); std::multiset<int>::iterator i; i = m.begin(); std::multiset<int>::const_iterator k = i; assert(i == k); for (int j = 1; j <= 8; ++j) for (int k = 0; k < 3; ++k, ++i) assert(*i == j); } { typedef int V; V ar[] = { 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8 }; const std::multiset<int> m(ar, ar+sizeof(ar)/sizeof(ar[0])); assert(std::distance(m.begin(), m.end()) == m.size()); assert(std::distance(m.cbegin(), m.cend()) == m.size()); assert(std::distance(m.rbegin(), m.rend()) == m.size()); assert(std::distance(m.crbegin(), m.crend()) == m.size()); std::multiset<int, double>::const_iterator i; i = m.begin(); for (int j = 1; j <= 8; ++j) for (int k = 0; k < 3; ++k, ++i) assert(*i == j); } }