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//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// <string>
// const_reference at(size_type pos) const;
// reference at(size_type pos);
#include <string>
#include <stdexcept>
#include <cassert>
#include "min_allocator.h"
#include "test_macros.h"
template <class S>
void
test(S s, typename S::size_type pos)
{
const S& cs = s;
if (pos < s.size())
{
assert(s.at(pos) == s[pos]);
assert(cs.at(pos) == cs[pos]);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
else
{
try
{
(void)s.at(pos);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos >= s.size());
}
try
{
(void)cs.at(pos);
assert(false);
}
catch (std::out_of_range&)
{
assert(pos >= s.size());
}
}
#endif
}
int main()
{
{
typedef std::string S;
test(S(), 0);
test(S("123"), 0);
test(S("123"), 1);
test(S("123"), 2);
test(S("123"), 3);
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S(), 0);
test(S("123"), 0);
test(S("123"), 1);
test(S("123"), 2);
test(S("123"), 3);
}
#endif
}
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