f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <map>
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// class map
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// pair<iterator, bool> insert(const value_type& v);
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#include <map>
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#include <cassert>
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int main()
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{
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{
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typedef std::map<int, double> M;
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typedef std::pair<M::iterator, bool> R;
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M m;
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R r = m.insert(M::value_type(2, 2.5));
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assert(r.second);
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assert(r.first == m.begin());
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assert(m.size() == 1);
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assert(r.first->first == 2);
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assert(r.first->second == 2.5);
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r = m.insert(M::value_type(1, 1.5));
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assert(r.second);
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assert(r.first == m.begin());
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assert(m.size() == 2);
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assert(r.first->first == 1);
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assert(r.first->second == 1.5);
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r = m.insert(M::value_type(3, 3.5));
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assert(r.second);
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assert(r.first == prev(m.end()));
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assert(m.size() == 3);
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assert(r.first->first == 3);
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assert(r.first->second == 3.5);
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r = m.insert(M::value_type(3, 3.5));
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assert(!r.second);
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assert(r.first == prev(m.end()));
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assert(m.size() == 3);
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assert(r.first->first == 3);
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assert(r.first->second == 3.5);
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}
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}
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