77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
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/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2019 CERN
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* Copyright (C) 2019 KiCad Developers, see CHANGELOG.TXT for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-3.0.html
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* or you may search the http://www.gnu.org website for the version 3 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef INCLUDE_CORE_KICAD_ALGO_H_
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#define INCLUDE_CORE_KICAD_ALGO_H_
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namespace alg
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{
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/**
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* @brief Apply a function to every sequential pair of elements of a sequence.
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* @param __first An input iterator.
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* @param __last An input iterator.
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* @param __f A unary function object.
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*
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* Applies the function object @p __f to each sequential pair of elements in the range
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* @p [first,last). @p __f must not modify the order of the sequence.
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* If @p __f has a return value it is ignored.
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*/
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template <typename _InputIterator, typename _Function>
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void adjacent_pairs( _InputIterator __first, _InputIterator __last, _Function __f )
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{
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if( __first != __last )
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{
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_InputIterator __follow = __first;
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++__first;
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for( ; __first != __last; ++__first, ++__follow )
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__f( *__follow, *__first );
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}
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}
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/**
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* @brief Apply a function to every possible pair of elements of a sequence.
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* @param __first An input iterator.
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* @param __last An input iterator.
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* @param __f A unary function object.
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*
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* Applies the function object @p __f to every possible pair of elements in the range
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* @p [first,last). @p __f must not modify the order of the sequence.
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* If @p __f has a return value it is ignored.
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*/
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template <typename _InputIterator, typename _Function>
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void for_all_pairs( _InputIterator __first, _InputIterator __last, _Function __f )
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{
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if( __first != __last )
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{
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_InputIterator __follow = __first;
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++__first;
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for( ; __first != __last; ++__first, ++__follow )
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for( _InputIterator __it = __first; __it != __last; ++__it )
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__f( *__follow, *__it );
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}
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}
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} // namespace alg
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#endif /* INCLUDE_CORE_KICAD_ALGO_H_ */
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