websocketpp  0.4.0
C++/Boost Asio based websocket client/server library
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random.hpp
1 /*
2  * Copyright (c) 2014, Peter Thorson. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  * * Redistributions of source code must retain the above copyright
7  * notice, this list of conditions and the following disclaimer.
8  * * Redistributions in binary form must reproduce the above copyright
9  * notice, this list of conditions and the following disclaimer in the
10  * documentation and/or other materials provided with the distribution.
11  * * Neither the name of the WebSocket++ Project nor the
12  * names of its contributors may be used to endorse or promote products
13  * derived from this software without specific prior written permission.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
19  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
22  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  */
27 
28 #ifndef WEBSOCKETPP_COMMON_RANDOM_DEVICE_HPP
29 #define WEBSOCKETPP_COMMON_RANDOM_DEVICE_HPP
30 
31 #if defined _WEBSOCKETPP_CPP11_STL_ && !defined _WEBSOCKETPP_NO_CPP11_RANDOM_DEVICE_
32  #ifndef _WEBSOCKETPP_CPP11_RANDOM_DEVICE_
33  #define _WEBSOCKETPP_CPP11_RANDOM_DEVICE_
34  #endif
35 #endif
36 
37 #ifdef _WEBSOCKETPP_CPP11_RANDOM_DEVICE_
38  #include <random>
39 #else
40  #include <boost/version.hpp>
41 
42  #if (BOOST_VERSION/100000) == 1 && ((BOOST_VERSION/100)%1000) > 46
43  #include <boost/random/uniform_int_distribution.hpp>
44  #include <boost/random/random_device.hpp>
45  #elif (BOOST_VERSION/100000) == 1 && ((BOOST_VERSION/100)%1000) >= 43
46  #include <boost/nondet_random.hpp>
47  #else
48  // TODO: static_assert(false, "Could not find a suitable random_device")
49  #endif
50 #endif
51 
52 namespace websocketpp {
53 namespace lib {
54 
55 #ifdef _WEBSOCKETPP_CPP11_RANDOM_DEVICE_
56  using std::random_device;
57  using std::uniform_int_distribution;
58 #else
59  using boost::random::random_device;
60  using boost::random::uniform_int_distribution;
61 #endif
62 
63 } // namespace lib
64 } // namespace websocketpp
65 
66 #endif // WEBSOCKETPP_COMMON_RANDOM_DEVICE_HPP
Namespace for the WebSocket++ project.
Definition: base64.hpp:41