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std::basic_istream::gcount

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std::basic_istream
 
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std::streamsize gcount() const;
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Returns the number of characters extracted by the last unformatted input operation.
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basic_istream gcount()
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The following member functions of basic_istream change the value of subsequent gcount() calls:
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gcount()
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The following functions set gcount() to zero:
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number of characters extracted by the last unformatted input operation
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