blob: 086096b7c8ba43add5e727e4db19f7589ed51ae5 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <map>
// class map
// iterator erase(const_iterator position);
#include <map>
#include <cassert>
#include "../../../min_allocator.h"
int main()
{
{
typedef std::map<int, double> M;
typedef std::pair<int, double> P;
typedef M::iterator I;
P ar[] =
{
P(1, 1.5),
P(2, 2.5),
P(3, 3.5),
P(4, 4.5),
P(5, 5.5),
P(6, 6.5),
P(7, 7.5),
P(8, 8.5),
};
M m(ar, ar + sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 8);
I i = m.erase(next(m.cbegin(), 3));
assert(m.size() == 7);
assert(i == next(m.begin(), 3));
assert(m.begin()->first == 1);
assert(m.begin()->second == 1.5);
assert(next(m.begin())->first == 2);
assert(next(m.begin())->second == 2.5);
assert(next(m.begin(), 2)->first == 3);
assert(next(m.begin(), 2)->second == 3.5);
assert(next(m.begin(), 3)->first == 5);
assert(next(m.begin(), 3)->second == 5.5);
assert(next(m.begin(), 4)->first == 6);
assert(next(m.begin(), 4)->second == 6.5);
assert(next(m.begin(), 5)->first == 7);
assert(next(m.begin(), 5)->second == 7.5);
assert(next(m.begin(), 6)->first == 8);
assert(next(m.begin(), 6)->second == 8.5);
i = m.erase(next(m.cbegin(), 0));
assert(m.size() == 6);
assert(i == m.begin());
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 3);
assert(next(m.begin())->second == 3.5);
assert(next(m.begin(), 2)->first == 5);
assert(next(m.begin(), 2)->second == 5.5);
assert(next(m.begin(), 3)->first == 6);
assert(next(m.begin(), 3)->second == 6.5);
assert(next(m.begin(), 4)->first == 7);
assert(next(m.begin(), 4)->second == 7.5);
assert(next(m.begin(), 5)->first == 8);
assert(next(m.begin(), 5)->second == 8.5);
i = m.erase(next(m.cbegin(), 5));
assert(m.size() == 5);
assert(i == m.end());
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 3);
assert(next(m.begin())->second == 3.5);
assert(next(m.begin(), 2)->first == 5);
assert(next(m.begin(), 2)->second == 5.5);
assert(next(m.begin(), 3)->first == 6);
assert(next(m.begin(), 3)->second == 6.5);
assert(next(m.begin(), 4)->first == 7);
assert(next(m.begin(), 4)->second == 7.5);
i = m.erase(next(m.cbegin(), 1));
assert(m.size() == 4);
assert(i == next(m.begin()));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
assert(next(m.begin(), 2)->first == 6);
assert(next(m.begin(), 2)->second == 6.5);
assert(next(m.begin(), 3)->first == 7);
assert(next(m.begin(), 3)->second == 7.5);
i = m.erase(next(m.cbegin(), 2));
assert(m.size() == 3);
assert(i == next(m.begin(), 2));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
assert(next(m.begin(), 2)->first == 7);
assert(next(m.begin(), 2)->second == 7.5);
i = m.erase(next(m.cbegin(), 2));
assert(m.size() == 2);
assert(i == next(m.begin(), 2));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
i = m.erase(next(m.cbegin(), 0));
assert(m.size() == 1);
assert(i == next(m.begin(), 0));
assert(m.begin()->first == 5);
assert(m.begin()->second == 5.5);
i = m.erase(m.cbegin());
assert(m.size() == 0);
assert(i == m.begin());
assert(i == m.end());
}
#if __cplusplus >= 201103L
{
typedef std::map<int, double, std::less<int>, min_allocator<std::pair<const int, double>>> M;
typedef std::pair<int, double> P;
typedef M::iterator I;
P ar[] =
{
P(1, 1.5),
P(2, 2.5),
P(3, 3.5),
P(4, 4.5),
P(5, 5.5),
P(6, 6.5),
P(7, 7.5),
P(8, 8.5),
};
M m(ar, ar + sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 8);
I i = m.erase(next(m.cbegin(), 3));
assert(m.size() == 7);
assert(i == next(m.begin(), 3));
assert(m.begin()->first == 1);
assert(m.begin()->second == 1.5);
assert(next(m.begin())->first == 2);
assert(next(m.begin())->second == 2.5);
assert(next(m.begin(), 2)->first == 3);
assert(next(m.begin(), 2)->second == 3.5);
assert(next(m.begin(), 3)->first == 5);
assert(next(m.begin(), 3)->second == 5.5);
assert(next(m.begin(), 4)->first == 6);
assert(next(m.begin(), 4)->second == 6.5);
assert(next(m.begin(), 5)->first == 7);
assert(next(m.begin(), 5)->second == 7.5);
assert(next(m.begin(), 6)->first == 8);
assert(next(m.begin(), 6)->second == 8.5);
i = m.erase(next(m.cbegin(), 0));
assert(m.size() == 6);
assert(i == m.begin());
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 3);
assert(next(m.begin())->second == 3.5);
assert(next(m.begin(), 2)->first == 5);
assert(next(m.begin(), 2)->second == 5.5);
assert(next(m.begin(), 3)->first == 6);
assert(next(m.begin(), 3)->second == 6.5);
assert(next(m.begin(), 4)->first == 7);
assert(next(m.begin(), 4)->second == 7.5);
assert(next(m.begin(), 5)->first == 8);
assert(next(m.begin(), 5)->second == 8.5);
i = m.erase(next(m.cbegin(), 5));
assert(m.size() == 5);
assert(i == m.end());
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 3);
assert(next(m.begin())->second == 3.5);
assert(next(m.begin(), 2)->first == 5);
assert(next(m.begin(), 2)->second == 5.5);
assert(next(m.begin(), 3)->first == 6);
assert(next(m.begin(), 3)->second == 6.5);
assert(next(m.begin(), 4)->first == 7);
assert(next(m.begin(), 4)->second == 7.5);
i = m.erase(next(m.cbegin(), 1));
assert(m.size() == 4);
assert(i == next(m.begin()));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
assert(next(m.begin(), 2)->first == 6);
assert(next(m.begin(), 2)->second == 6.5);
assert(next(m.begin(), 3)->first == 7);
assert(next(m.begin(), 3)->second == 7.5);
i = m.erase(next(m.cbegin(), 2));
assert(m.size() == 3);
assert(i == next(m.begin(), 2));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
assert(next(m.begin(), 2)->first == 7);
assert(next(m.begin(), 2)->second == 7.5);
i = m.erase(next(m.cbegin(), 2));
assert(m.size() == 2);
assert(i == next(m.begin(), 2));
assert(m.begin()->first == 2);
assert(m.begin()->second == 2.5);
assert(next(m.begin())->first == 5);
assert(next(m.begin())->second == 5.5);
i = m.erase(next(m.cbegin(), 0));
assert(m.size() == 1);
assert(i == next(m.begin(), 0));
assert(m.begin()->first == 5);
assert(m.begin()->second == 5.5);
i = m.erase(m.cbegin());
assert(m.size() == 0);
assert(i == m.begin());
assert(i == m.end());
}
#endif
}