📄 iostream
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#ifndef ___iostream_h#define ___iostream_hclass ios{public: int eof(); int fail(); int bad(); int gcount(); int read(char* buffer, int size); int write(const char* buffer, int size);};class istream : public ios{};class ostream : public ios{public: ostream& operator << (const char* s); ostream& operator << (char ch);};extern istream cin;extern ostream cout;extern ostream cerr;#endif // ___iostream_h
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