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Showing content from https://timsong-cpp.github.io/cppwp/n4659/streambuf.pub.get below:

[streambuf.pub.get]

30 Input/output library [input.output] 30.6 Stream buffers [stream.buffers] 30.6.3 Class template basic_­streambuf [streambuf] 30.6.3.2 basic_­streambuf public member functions [streambuf.members] 30.6.3.2.3 Get area [streambuf.pub.get]

streamsize in_avail();

Returns: If a read position is available, returns egptr() - gptr(). Otherwise returns showmanyc().

int_type snextc();

Returns: If that function returns traits​::​eof(), returns traits​::​eof(). Otherwise, returns sgetc().

int_type sbumpc();

Returns: If the input sequence read position is not available, returns uflow(). Otherwise, returns traits​::​to_­int_­type(*gptr()) and increments the next pointer for the input sequence.

int_type sgetc();

Returns: If the input sequence read position is not available, returns underflow(). Otherwise, returns traits​::​to_­int_­type(*gptr()).

streamsize sgetn(char_type* s, streamsize n);


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