2 * Copyright (c) 2014, Peter Thorson. All rights reserved.
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.
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.
28 #ifndef WEBSOCKETPP_COMMON_FUNCTIONAL_HPP
29 #define WEBSOCKETPP_COMMON_FUNCTIONAL_HPP
31 #include <websocketpp/common/cpp11.hpp>
33 // If we've determined that we're in full C++11 mode and the user hasn't
34 // explicitly disabled the use of C++11 functional header, then prefer it to
36 #if defined _WEBSOCKETPP_CPP11_INTERNAL_ && !defined _WEBSOCKETPP_NO_CPP11_FUNCTIONAL_
37 #ifndef _WEBSOCKETPP_CPP11_FUNCTIONAL_
38 #define _WEBSOCKETPP_CPP11_FUNCTIONAL_
42 // If we're on Visual Studio 2010 or higher and haven't explicitly disabled
43 // the use of C++11 functional header then prefer it to boost.
44 #if defined(_MSC_VER) && _MSC_VER >= 1600 && !defined _WEBSOCKETPP_NO_CPP11_FUNCTIONAL_
45 #ifndef _WEBSOCKETPP_CPP11_FUNCTIONAL_
46 #define _WEBSOCKETPP_CPP11_FUNCTIONAL_
52 #ifdef _WEBSOCKETPP_CPP11_FUNCTIONAL_
55 #include <boost/bind.hpp>
56 #include <boost/function.hpp>
57 #include <boost/ref.hpp>
62 namespace websocketpp {
65 #ifdef _WEBSOCKETPP_CPP11_FUNCTIONAL_
69 namespace placeholders = std::placeholders;
71 // There are some cases where a C++11 compiler balks at using std::ref
72 // but a C++03 compiler using boost function requires boost::ref. As such
73 // lib::ref is not useful in these cases. Instead this macro allows the use
74 // of boost::ref in the case of a boost compile or no reference wrapper at
75 // all in the case of a C++11 compile
76 #define _WEBSOCKETPP_REF(x) x
79 void clear_function(T & x) {
83 using boost::function;
86 namespace placeholders {
87 /// \todo this feels hacky, is there a better way?
93 // See above definition for more details on what this is and why it exists
94 #define _WEBSOCKETPP_REF(x) boost::ref(x)
97 void clear_function(T & x) {
103 } // namespace websocketpp
105 #endif // WEBSOCKETPP_COMMON_FUNCTIONAL_HPP