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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.
//
//===----------------------------------------------------------------------===//
// <string>
// const_reference operator[](size_type pos) const;
// reference operator[](size_type pos);
#include <string>
#include <cassert>
int main()
{
typedef std::string S;
S s("0123456789");
const S& cs = s;
for (S::size_type i = 0; i < cs.size(); ++i)
{
assert(s[i] == '0' + i);
assert(cs[i] == s[i]);
}
assert(cs[cs.size()] == '\0');
const S s2 = S();
assert(s2[0] == '\0');
}
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