/usr/include/cxxtools/join.h is in libcxxtools-dev 2.2.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 | /*
* Copyright (C) 2010 Tommi Maekitalo
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <iostream>
#include <sstream>
namespace cxxtools
{
/** @brief Joins a list of tokens into a output stream using a delimiter.
A list of tokens read from a range is printed to a out stream. The tokens
are separated by a token.
Example (prints "4, 17, 12"):
\code
std::vector<unsigned> v;
v.push_back(4);
v.push_back(17);
v.push_back(12);
join(v.begin(), v.end(), ", ", std::cout);
\endcode
*/
template <typename inputIterator, typename separatorType, typename characterType>
void join(inputIterator b, inputIterator e, const separatorType& sep, std::basic_ostream<characterType>& out)
{
bool first = true;
for (inputIterator it = b; it != e; ++it)
{
if (first)
first = false;
else
out << sep;
out << *it;
}
}
/** @brief Joins a list of tokens into a std::string using a delimiter.
This function is just like the other join function, but returns the
result as a std::string.
Example (prints "4, 17, 12"):
\code
std::vector<unsigned> v;
v.push_back(4);
v.push_back(17);
v.push_back(12);
std::cout << join(v.begin(), v.end(), ", ");
\endcode
*/
template <typename inputIterator, typename separatorType>
std::string join(inputIterator b, inputIterator e, const separatorType& sep)
{
std::ostringstream ret;
join(b, e, sep, ret);
return ret.str();
}
}
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