| /* |
| 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 iota.hpp |
| /// \brief Generate an increasing series |
| /// \author Marshall Clow |
| |
| #ifndef BOOST_ALGORITHM_IOTA_HPP |
| #define BOOST_ALGORITHM_IOTA_HPP |
| |
| #include <boost/config.hpp> |
| #include <boost/range/begin.hpp> |
| #include <boost/range/end.hpp> |
| |
| namespace boost { namespace algorithm { |
| |
| /// \fn iota ( ForwardIterator first, ForwardIterator last, T value ) |
| /// \brief Generates an increasing sequence of values, and stores them in [first, last) |
| /// |
| /// \param first The start of the input sequence |
| /// \param last One past the end of the input sequence |
| /// \param value The initial value of the sequence to be generated |
| /// \note This function is part of the C++2011 standard library. |
| template <typename ForwardIterator, typename T> |
| BOOST_CXX14_CONSTEXPR void iota ( ForwardIterator first, ForwardIterator last, T value ) |
| { |
| for ( ; first != last; ++first, ++value ) |
| *first = value; |
| } |
| |
| /// \fn iota ( Range &r, T value ) |
| /// \brief Generates an increasing sequence of values, and stores them in the input Range. |
| /// |
| /// \param r The input range |
| /// \param value The initial value of the sequence to be generated |
| /// |
| template <typename Range, typename T> |
| BOOST_CXX14_CONSTEXPR void iota ( Range &r, T value ) |
| { |
| boost::algorithm::iota (boost::begin(r), boost::end(r), value); |
| } |
| |
| |
| /// \fn iota_n ( OutputIterator out, T value, std::size_t n ) |
| /// \brief Generates an increasing sequence of values, and stores them in the input Range. |
| /// |
| /// \param out An output iterator to write the results into |
| /// \param value The initial value of the sequence to be generated |
| /// \param n The number of items to write |
| /// |
| template <typename OutputIterator, typename T> |
| BOOST_CXX14_CONSTEXPR OutputIterator iota_n ( OutputIterator out, T value, std::size_t n ) |
| { |
| for ( ; n > 0; --n, ++value ) |
| *out++ = value; |
| |
| return out; |
| } |
| |
| }} |
| |
| #endif // BOOST_ALGORITHM_IOTA_HPP |