cxx/test/containers/associative/map/map.access/index_key.pass.cpp
Howard Hinnant bc8d3f97eb libcxx initial import
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:42:16 +00:00

45 lines
996 B
C++

//===----------------------------------------------------------------------===//
//
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <map>
// class map
// mapped_type& operator[](const key_type& k);
#include <map>
#include <cassert>
int main()
{
typedef std::pair<const int, double> V;
V ar[] =
{
V(1, 1.5),
V(2, 2.5),
V(3, 3.5),
V(4, 4.5),
V(5, 5.5),
V(7, 7.5),
V(8, 8.5),
};
std::map<int, double> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
assert(m.size() == 7);
assert(m[1] == 1.5);
assert(m.size() == 7);
m[1] = -1.5;
assert(m[1] == -1.5);
assert(m.size() == 7);
assert(m[6] == 0);
assert(m.size() == 8);
m[6] = 6.5;
assert(m[6] == 6.5);
assert(m.size() == 8);
}