Function: buffer-chars-modified-tick

buffer-chars-modified-tick is a function defined in buffer.c.

Signature

(buffer-chars-modified-tick &optional BUFFER)

Documentation

Return BUFFER's character-change tick counter.

Each buffer has a character-change tick counter, which is set to the value of the buffer's tick counter (see buffer-modified-tick), each time text in that buffer is inserted or deleted. By comparing the values returned by two individual calls of buffer-chars-modified-tick, you can tell whether a character change occurred in that buffer in between these calls. No argument or nil as argument means use current buffer as BUFFER.

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Probably introduced at or before Emacs version 22.1.

Source Code

// Defined in /usr/src/emacs/src/buffer.c
{
  return modiff_to_integer (BUF_CHARS_MODIFF (decode_buffer (buffer)));
}