Method: StringInput#seek

Defined in:
lib/extensions/crypt/crypt/stringio.rb

#seek(offset, whence = IO::SEEK_SET) ⇒ Object 



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# File 'lib/extensions/crypt/crypt/stringio.rb', line 90

def seek( offset, whence = IO::SEEK_SET )
  stream_check!
  case whence
  when IO::SEEK_SET
    @pos = offset
  when IO::SEEK_CUR
    @pos += offset
  when IO::SEEK_END
    @pos = @src.size - offset
  else
    raise ArgumentError, "unknown seek flag: #{whence}"
  end
  @pos = 0 if @pos < 0
  @pos = [@pos, @src.size + 1].min
  offset
end