try-expand-line-all-buffers

try-expand-line-all-buffers is a compiled Lisp function in `hippie-exp.el'.

(try-expand-line-all-buffers OLD)

Try to complete the current line, searching all other buffers.
The argument OLD has to be nil the first call of this function, and t
for subsequent calls (for further possible completions of the same
string). It returns t if a new completion is found, nil otherwise.