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// 2001-12-28 Phil Edwards <>
// Copyright (C) 2001-2015 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 3, 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
// 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 COPYING3. If not see
// <>.
// 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;
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()
return 0;