Qpid Proton C++  0.24.0
null.hpp
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1 #ifndef PROTON_NULL_HPP
2 #define PROTON_NULL_HPP
3 
4 /*
5  *
6  * Licensed to the Apache Software Foundation (ASF) under one
7  * or more contributor license agreements. See the NOTICE file
8  * distributed with this work for additional information
9  * regarding copyright ownership. The ASF licenses this file
10  * to you under the Apache License, Version 2.0 (the
11  * "License"); you may not use this file except in compliance
12  * with the License. You may obtain a copy of the License at
13  *
14  * http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing,
17  * software distributed under the License is distributed on an
18  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
19  * KIND, either express or implied. See the License for the
20  * specific language governing permissions and limitations
21  * under the License.
22  *
23  */
24 
27 
28 #include "./internal/config.hpp"
29 #include "./internal/export.hpp"
30 
31 #include <iosfwd>
32 
33 namespace proton {
34 
38 class null {
39  public:
40  null() {}
41 #if PN_CPP_HAS_NULLPTR
42  null(decltype(nullptr)) {}
44 #endif
45 };
46 
48 PN_CPP_EXTERN std::ostream& operator<<(std::ostream&, const null&);
49 
50 }
51 
52 #endif // PROTON_NULL_HPP
proton::operator<<
std::ostream & operator<<(std::ostream &, const binary &)
Print a binary value.
proton::null
The type of the AMQP null value.
Definition: null.hpp:38
proton
The main Proton namespace.
Definition: annotation_key.hpp:33