1 /*
2  * Copyright (C) 2011 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef ART_LIBARTBASE_BASE_TO_STR_H_
18 #define ART_LIBARTBASE_BASE_TO_STR_H_
19 
20 #include <sstream>
21 
22 namespace art {
23 
24 // Helps you use operator<< in a const char*-like context such as our various 'F' methods with
25 // format strings.
26 template<typename T>
27 class ToStr {
28  public:
ToStr(const T & value)29   explicit ToStr(const T& value) {
30     std::ostringstream os;
31     os << value;
32     s_ = os.str();
33   }
34 
c_str()35   const char* c_str() const {
36     return s_.c_str();
37   }
38 
str()39   const std::string& str() const {
40     return s_;
41   }
42 
43  private:
44   std::string s_;
45   DISALLOW_COPY_AND_ASSIGN(ToStr);
46 };
47 
48 }  // namespace art
49 
50 #endif  // ART_LIBARTBASE_BASE_TO_STR_H_
51