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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_SAMPLE2_H_
     35 #define GTEST_SAMPLES_SAMPLE2_H_
     36 
     37 #include <string.h>
     38 
     39 
     40 // A simple string class.
     41 class MyString {
     42  private:
     43   const char* c_string_;
     44   const MyString& operator=(const MyString& rhs);
     45 
     46  public:
     47   // Clones a 0-terminated C string, allocating memory using new.
     48   static const char* CloneCString(const char* a_c_string);
     49 
     50   ////////////////////////////////////////////////////////////
     51   //
     52   // C'tors
     53 
     54   // The default c'tor constructs a NULL string.
     55   MyString() : c_string_(NULL) {}
     56 
     57   // Constructs a MyString by cloning a 0-terminated C string.
     58   explicit MyString(const char* a_c_string) : c_string_(NULL) {
     59     Set(a_c_string);
     60   }
     61 
     62   // Copy c'tor
     63   MyString(const MyString& string) : c_string_(NULL) {
     64     Set(string.c_string_);
     65   }
     66 
     67   ////////////////////////////////////////////////////////////
     68   //
     69   // D'tor.  MyString is intended to be a final class, so the d'tor
     70   // doesn't need to be virtual.
     71   ~MyString() { delete[] c_string_; }
     72 
     73   // Gets the 0-terminated C string this MyString object represents.
     74   const char* c_string() const { return c_string_; }
     75 
     76   size_t Length() const {
     77     return c_string_ == NULL ? 0 : strlen(c_string_);
     78   }
     79 
     80   // Sets the 0-terminated C string this MyString object represents.
     81   void Set(const char* c_string);
     82 };
     83 
     84 
     85 #endif  // GTEST_SAMPLES_SAMPLE2_H_
     86