libsocket
select.cpp
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1 /*
2  The committers of the libsocket project, all rights reserved
3  (c) 2012, dermesser <lbo@spheniscida.de>
4 
5  Redistribution and use in source and binary forms, with or without
6  modification, are permitted provided that the following conditions are met:
7 
8  1. Redistributions of source code must retain the above copyright notice,
9  this list of conditions and the following disclaimer.
10  2. Redistributions in binary form must reproduce the above copyright notice,
11  this list of conditions and the following disclaimer in the documentation
12  and/or other materials provided with the distribution.
13 
14  THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS “AS IS” AND ANY
15  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
18  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
21  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 
25 */
26 
33 #include <exception.hpp>
34 #include <vector>
35 
36 namespace libsocket {
37 /***** UTIL *****/
42 int highestfd(const std::vector<int>& v) {
43  std::vector<int>::const_iterator end = v.end();
44  int highestfd = 0;
45 
46  for (std::vector<int>::const_iterator cur = v.begin(); cur != end; cur++) {
47  if (*cur > highestfd) highestfd = *cur;
48  }
49 
50  return highestfd;
51 }
52 
53 } // namespace libsocket
Contains libsocket elements.
Definition: dgramclient.hpp:41
int highestfd(const std::vector< int > &v)
Utility function to find the highest number in a vector (typically, the highest file descriptor)
Definition: select.cpp:42