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Document nil args of compare-buffer-substrings

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* editfns.c (Fcompare_buffer_substrings): Document behavior when
the arguments are nil.
This commit is contained in:
Philipp Stephani 2016-10-02 19:58:39 +02:00
parent 9fc81bcf74
commit 74b4f13842
1 changed files with 4 additions and 0 deletions
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src/editfns.c
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@ -2892,6 +2892,10 @@ Return -N if first string is less after N-1 chars, +N if first string is
greater after N-1 chars, or 0 if strings match.
The first substring is in BUFFER1 from START1 to END1 and the second
is in BUFFER2 from START2 to END2.
All arguments may be nil. If BUFFER1 or BUFFER2 is nil, the current
buffer is used. If START1 or START2 is nil, the value of `point-min'
in the respective buffers is used. If END1 or END2 is nil, the value
of `point-max' in the respective buffers is used.
The value of `case-fold-search' in the current buffer
determines whether case is significant or ignored. */)
(Lisp_Object buffer1, Lisp_Object start1, Lisp_Object end1, Lisp_Object buffer2, Lisp_Object start2, Lisp_Object end2)