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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <map>
// class map
// pair<iterator, bool> insert(const value_type& v);
#include <map>
#include <cassert>
int main()
{
{
typedef std::map<int, double> M;
typedef std::pair<M::iterator, bool> R;
M m;
R r = m.insert(M::value_type(2, 2.5));
assert(r.second);
assert(r.first == m.begin());
assert(m.size() == 1);
assert(r.first->first == 2);
assert(r.first->second == 2.5);
r = m.insert(M::value_type(1, 1.5));
assert(r.second);
assert(r.first == m.begin());
assert(m.size() == 2);
assert(r.first->first == 1);
assert(r.first->second == 1.5);
r = m.insert(M::value_type(3, 3.5));
assert(r.second);
assert(r.first == prev(m.end()));
assert(m.size() == 3);
assert(r.first->first == 3);
assert(r.first->second == 3.5);
r = m.insert(M::value_type(3, 3.5));
assert(!r.second);
assert(r.first == prev(m.end()));
assert(m.size() == 3);
assert(r.first->first == 3);
assert(r.first->second == 3.5);
}
}
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