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class String { private: char* rep; public: String (const char*); void toUpper() const; }; String :: String (const char* s) { rep = new char [strlen(s)+1]; strcpy (rep, s); } void String :: toUpper () const { for (int i = 0; rep [i]; i++) rep[i] = toupper(rep[i]); } int main () { const String lower ("lower"); lower.toUpper(); cout << lower << endl; return 0; }
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