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d580e7c694
* Use nullptr (C++11) instead of NULL. * Put each file into its own namespace declaration. * Remove "using namespace" directives and add scope qualifiers. * Control when beast's implementation of std::equal (C++14) is used. * Tidy up some const declarations. Conflicts: src/ripple_app/shamap/SHAMapSync.cpp src/ripple_app/tx/TransactionEngine.cpp
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_CXX14_ALGORITHM_H_INCLUDED
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#define BEAST_CXX14_ALGORITHM_H_INCLUDED
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#include "config.h"
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#include "functional.h"
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#include <algorithm>
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#if ! BEAST_NO_CXX14_EQUAL
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namespace std {
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namespace detail {
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template <class Pred, class FwdIt1, class FwdIt2>
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bool equal (FwdIt1 first1, FwdIt1 last1,
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FwdIt2 first2, FwdIt2 last2, Pred pred,
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std::input_iterator_tag, std::input_iterator_tag)
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{
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for (; first1 != last1 && first2 != last2; ++first1, ++first2)
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if (! pred (*first1, *first2))
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return false;
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return first1 == last1 && first2 == last2;
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}
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template <class Pred, class RanIt1, class RanIt2>
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bool equal (RanIt1 first1, RanIt1 last1,
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RanIt2 first2, RanIt2 last2, Pred pred,
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random_access_iterator_tag,
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random_access_iterator_tag )
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{
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if (std::distance (first1, last1) !=
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std::distance (first2, last2))
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return false;
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for (; first1 != last1; ++first1, ++first2)
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if (! pred (*first1, *first2))
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return false;
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return true;
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}
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}
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/** C++14 implementation of std::equal. */
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/** @{ */
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template <class FwdIt1, class FwdIt2>
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bool equal (FwdIt1 first1, FwdIt1 last1,
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FwdIt2 first2, FwdIt2 last2)
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{
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return std::detail::equal (first1, last1,
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first2, last2, std::equal_to <void>(),
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typename std::iterator_traits <
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FwdIt1>::iterator_category(),
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typename std::iterator_traits <
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FwdIt2>::iterator_category());
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}
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template <class FwdIt1, class FwdIt2, class Pred>
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bool equal (FwdIt1 first1, FwdIt1 last1,
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FwdIt2 first2, FwdIt2 last2, Pred pred)
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{
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return std::detail::equal <
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typename std::add_lvalue_reference <Pred>::type> (
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first1, last1, first2, last2, pred,
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typename std::iterator_traits <
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FwdIt1>::iterator_category(),
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typename std::iterator_traits <
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FwdIt2>::iterator_category());
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}
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/** @} */
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}
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#endif
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#endif
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