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      1 // Copyright 2005, Google Inc.
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     29 
     30 // A sample program demonstrating using Google C++ testing framework.
     31 //
     32 // Author: wan (at) google.com (Zhanyong Wan)
     33 
     34 #ifndef GTEST_SAMPLES_SAMPLE4_H_
     35 #define GTEST_SAMPLES_SAMPLE4_H_
     36 
     37 // A simple monotonic counter.
     38 class Counter {
     39  private:
     40   int counter_;
     41 
     42  public:
     43   // Creates a counter that starts at 0.
     44   Counter() : counter_(0) {}
     45 
     46   // Returns the current counter value, and increments it.
     47   int Increment();
     48 
     49   // Prints the current counter value to STDOUT.
     50   void Print() const;
     51 };
     52 
     53 #endif  // GTEST_SAMPLES_SAMPLE4_H_
     54