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#include <string>

#include <iostream.h>

template <class T>

class StringTest {

public:

   virtual void runTest();

   void testFunction();

};

template <class T>

void StringTest<T>:: runTest() {

   testFunction ();

}

template <class T>

void StringTest <T>::testFunction() {

   // initialize s with string literal

   cout << "in StringTest" << endl;

   string s("I am a shot string");

   cout << s << endl;

   // insert 'r' to fix "shot"

   s.insert(s.begin()+10,'r' );

   cout << s << endl;

   // concatenate another string

   s += "and now a longer string";

   cout << s << endl;

   // find position where blank needs to be inserted

   string::size_type spos = s.find("and");

   s.insert(spos, " ");

   cout << s << endl;

   // erase the concatenated part

   s.erase(spos);

   cout << s << endl;

}

int main() {

   StringTest<wchar_t> ts;

   ts.runTest();

}

/* output:

I am a shot string

I am a short string

I am a short stringand now a longer string

I am a short string and now a longer string

I am a short string

*/