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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>
// iterator insert(const_iterator p, charT c);
#include <string>
#include <stdexcept>
#include <cassert>
template <class S>
void
test(S& s, typename S::const_iterator p, typename S::value_type c, S expected)
{
bool sufficient_cap = s.size() < s.capacity();
typename S::difference_type pos = p - s.begin();
typename S::iterator i = s.insert(p, c);
assert(s.__invariants());
assert(s == expected);
assert(i - s.begin() == pos);
assert(*i == c);
if (sufficient_cap)
assert(i == p);
}
int main()
{
typedef std::string S;
S s;
test(s, s.begin(), '1', S("1"));
test(s, s.begin(), 'a', S("a1"));
test(s, s.end(), 'b', S("a1b"));
test(s, s.end()-1, 'c', S("a1cb"));
test(s, s.end()-2, 'd', S("a1dcb"));
test(s, s.end()-3, '2', S("a12dcb"));
test(s, s.end()-4, '3', S("a132dcb"));
test(s, s.end()-5, '4', S("a1432dcb"));
test(s, s.begin()+1, '5', S("a51432dcb"));
test(s, s.begin()+2, '6', S("a561432dcb"));
test(s, s.begin()+3, '7', S("a5671432dcb"));
test(s, s.begin()+4, 'A', S("a567A1432dcb"));
test(s, s.begin()+5, 'B', S("a567AB1432dcb"));
test(s, s.begin()+6, 'C', S("a567ABC1432dcb"));
}
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