/* Copyright (c) Marshall Clow 2008-2012. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ /// \file all_of.hpp /// \brief Test ranges to see if all elements match a value or predicate. /// \author Marshall Clow #ifndef BOOST_ALGORITHM_ALL_OF_HPP #define BOOST_ALGORITHM_ALL_OF_HPP #include #include #include namespace boost { namespace algorithm { /// \fn all_of ( InputIterator first, InputIterator last, Predicate p ) /// \return true if all elements in [first, last) satisfy the predicate 'p' /// \note returns true on an empty range /// /// \param first The start of the input sequence /// \param last One past the end of the input sequence /// \param p A predicate for testing the elements of the sequence /// /// \note This function is part of the C++2011 standard library. template BOOST_CXX14_CONSTEXPR bool all_of ( InputIterator first, InputIterator last, Predicate p ) { for ( ; first != last; ++first ) if ( !p(*first)) return false; return true; } /// \fn all_of ( const Range &r, Predicate p ) /// \return true if all elements in the range satisfy the predicate 'p' /// \note returns true on an empty range /// /// \param r The input range /// \param p A predicate for testing the elements of the range /// template BOOST_CXX14_CONSTEXPR bool all_of ( const Range &r, Predicate p ) { return boost::algorithm::all_of ( boost::begin (r), boost::end (r), p ); } /// \fn all_of_equal ( InputIterator first, InputIterator last, const T &val ) /// \return true if all elements in [first, last) are equal to 'val' /// \note returns true on an empty range /// /// \param first The start of the input sequence /// \param last One past the end of the input sequence /// \param val A value to compare against /// template BOOST_CXX14_CONSTEXPR bool all_of_equal ( InputIterator first, InputIterator last, const T &val ) { for ( ; first != last; ++first ) if ( val != *first ) return false; return true; } /// \fn all_of_equal ( const Range &r, const T &val ) /// \return true if all elements in the range are equal to 'val' /// \note returns true on an empty range /// /// \param r The input range /// \param val A value to compare against /// template BOOST_CXX14_CONSTEXPR bool all_of_equal ( const Range &r, const T &val ) { return boost::algorithm::all_of_equal ( boost::begin (r), boost::end (r), val ); } }} // namespace boost and algorithm #endif // BOOST_ALGORITHM_ALL_OF_HPP