Example // basic_istream_gcount.cppīasic_istream& get(Char_T* str, streamsize count) īasic_istream& get(Char_T* str, streamsize count, Char_T delimiter) īasic_istream& get(basic_streambuf& strbuf) īasic_istream& get(basic_streambuf& strbuf, Char_T delimiter) Use basic_istream::get to read unformatted characters. Returns the number of characters read during the last unformatted input.
See the example for basic_ifstream::basic_ifstream to learn more about input streams. It also stores right.gcount() in the extraction count and stores zero in the extraction count for * right**. The second constructor initializes the base class by calling move(right). And for more information about this extraction count, see the Remarks section of the basic_istream Class overview. It also stores zero in the extraction count. The first constructor initializes the base class by calling init(strbuf). True if it's a standard stream otherwise, false. Namespace: std basic_istream::basic_istreamĬonstructs an object of type basic_istream. It's a move assignment involving an rvalue reference that doesn't leave a copy behind. Puts the most recently read character back into the stream.Ĭalls a function on the input stream or reads formatted data from the input stream.Īssigns the basic_istream on the right side of the operator to this object. Reports the current read position in the stream. Synchronizes the stream's associated input device with the stream's buffer. The nested class describes an object whose declaration structures the formatted input functions and the unformatted input functions.Įxchanges this basic_istream object for the provided basic_istream object parameter. Reads a specified number of characters from the stream and stores them in an array. Puts a specified character into the stream. Reads one or more characters from the input stream.Ĭauses a number of elements to be skipped from the current read position. Constructors ConstructorĬonstructs an object of type basic_istream. See the example for basic_ifstream Class to learn more about input streams. For more information, see basic_ios.Īn extraction count for the last unformatted input operation (called count in the previous code). For more information, see setstate.Ī virtual public base object of class basic_ios. They follow the pattern: iostate state = goodbit Ĭount = 0 // the value returned by gcountīoth groups of functions call setstate(eofbit) if they encounter end of file while extracting elements.
Many other member functions are unformatted input functions. They follow the pattern: iostate state = goodbit Most of the member functions that overload operator> are formatted input functions. Syntax template >Ĭlass basic_istream : virtual public basic_ios Describes an object that controls extraction of elements and encoded objects from a stream buffer with elements of type Char_T, also known as char_type, whose character traits are determined by the class Tr, also known as traits_type.
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