RapidJSON: include/rapidjson/ostreamwrapper.h 源文件

ostreamwrapper.h
1 // Tencent is pleased to support the open source community by making RapidJSON available.
2 //
3 // Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip.
4 //
5 // Licensed under the MIT License (the "License"); you may not use this file except
6 // in compliance with the License. You may obtain a copy of the License at
7 //
8 // http://opensource.org/licenses/MIT
9 //
10 // Unless required by applicable law or agreed to in writing, software distributed
11 // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12 // CONDITIONS OF ANY KIND, either express or implied. See the License for the
13 // specific language governing permissions and limitations under the License.
14
15 #ifndef RAPIDJSON_OSTREAMWRAPPER_H_
16 #define RAPIDJSON_OSTREAMWRAPPER_H_
17
18 #include "stream.h"
19 #include <iosfwd>
20
21 #ifdef __clang__
22 RAPIDJSON_DIAG_PUSH
23 RAPIDJSON_DIAG_OFF(padded)
24 #endif
25
26 RAPIDJSON_NAMESPACE_BEGIN
27
28 //! Wrapper of \c std::basic_ostream into RapidJSON's Stream concept.
29 /*!
30 The classes can be wrapped including but not limited to:
31
32 - \c std::ostringstream
33 - \c std::stringstream
34 - \c std::wpstringstream
35 - \c std::wstringstream
36 - \c std::ifstream
37 - \c std::fstream
38 - \c std::wofstream
39 - \c std::wfstream
40
41 \tparam StreamType Class derived from \c std::basic_ostream.
42 */
43
44 template <typename StreamType>
45 class BasicOStreamWrapper {
46 public:
47 typedef typename StreamType::char_type Ch;
48 BasicOStreamWrapper(StreamType& stream) : stream_(stream) {}
49
50 void Put(Ch c) {
51 stream_.put(c);
52 }
53
54 void Flush() {
55 stream_.flush();
56 }
57
58 // Not implemented
59 char Peek() const { RAPIDJSON_ASSERT(false); return 0; }
60 char Take() { RAPIDJSON_ASSERT(false); return 0; }
61 size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
62 char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
63 size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
64
65 private:
66 BasicOStreamWrapper(const BasicOStreamWrapper&);
67 BasicOStreamWrapper& operator=(const BasicOStreamWrapper&);
68
69 StreamType& stream_;
70 };
71
72 typedef BasicOStreamWrapper<std::ostream> OStreamWrapper;
73 typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper;
74
75 #ifdef __clang__
76 RAPIDJSON_DIAG_POP
77 #endif
78
79 RAPIDJSON_NAMESPACE_END
80
81 #endif // RAPIDJSON_OSTREAMWRAPPER_H_
rapidjson::BasicOStreamWrapper
Wrapper of std::basic_ostream into RapidJSON's Stream concept.
Definition: ostreamwrapper.h:45
RAPIDJSON_ASSERT
#define RAPIDJSON_ASSERT(x)
Assertion.
Definition: rapidjson.h:406