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      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:
     29   explicit ToStr(const T& value) {
     30     std::ostringstream os;
     31     os << value;
     32     s_ = os.str();
     33   }
     34 
     35   const char* c_str() const {
     36     return s_.c_str();
     37   }
     38 
     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