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// 2001-12-28  Phil Edwards  <pme@gcc.gnu.org>
//
// Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
 
// Concept checking must remain sane.
 
// { dg-options "-D_GLIBCXX_CONCEPT_CHECKS" }
 
#include <vector>
#include <string>
#include <algorithm>
#include <testsuite_hooks.h>
 
using namespace std;
 
 
// PR libstdc++/2054 and follow-up discussion
struct indirectCompare
{
  indirectCompare(const vector<string>& v) : V(v) {}
 
  bool operator()( int x,  int y) const
  {
       return V[x] < V[y];
  }
 
  bool operator()( int x, const string& a) const
  {
       return V[x] < a;
  }
 
  bool operator()( const string& a, int x) const
  {
       return V[x] < a;
  }
 
  const vector<string>& V;
};
 
void
test2054( )
{
  const int Maxi = 1022;
 
  vector<string> Words(Maxi);
  vector<int> Index(Maxi);
 
  for(size_t i = 0; i < Index.size(); i++)
     Index[i] = i;
 
  indirectCompare aComparison(Words);
 
  sort(Index.begin(), Index.end(), aComparison);
 
  string SearchTerm;
 
  lower_bound(Index.begin(), Index.end(), SearchTerm, aComparison);
  upper_bound(Index.begin(), Index.end(), SearchTerm, aComparison);
  equal_range(Index.begin(), Index.end(), SearchTerm, aComparison);
  binary_search(Index.begin(), Index.end(), SearchTerm, aComparison);
}
 
int main()
{
  test2054();
  return 0;
}