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1 /* |
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2 * join.hpp -- join lists into a string |
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3 * |
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4 * Copyright (c) 2013-2016 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 /** |
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20 * Join values by a separator and return a string. |
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21 * |
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22 * \param first the first iterator |
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23 * \param last the last iterator |
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24 * \param delim the optional delimiter |
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25 * \return the string |
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26 */ |
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27 template <typename InputIt, typename DelimType = char> |
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28 std::string join(InputIt first, InputIt last, DelimType delim = ':') |
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29 { |
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30 std::ostringstream oss; |
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31 |
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32 if (first != last) { |
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33 oss << *first; |
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34 |
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35 while (++first != last) |
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36 oss << delim << *first; |
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37 } |
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38 |
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39 return oss.str(); |
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40 } |
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41 |
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42 /** |
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43 * Convenient overload. |
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44 * |
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45 * \param list the initializer list |
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46 * \param delim the delimiter |
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47 * \return the string |
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48 */ |
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49 template <typename T, typename DelimType = char> |
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50 inline std::string join(std::initializer_list<T> list, DelimType delim = ':') |
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51 { |
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52 return join(list.begin(), list.end(), delim); |
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53 } |
