Document new bool-vector set operation functions.

* doc/lispref/sequences.texi (Bool-Vectors): Document new bool-vector
set operation functions.

doc/lispref/ChangeLog

@@ -1,5 +1,7 @@
 2013-12-22  Xue Fuqiao  <xfq.free@gmail.com>
 
+	* sequences.texi (Bool-Vectors): Document new bool-vector set operation functions.
+
 	* text.texi (Examining Properties): Document `get-pos-property'.
 
 	* variables.texi (Directory Local Variables): Document `enable-dir-local-variables'.

doc/lispref/sequences.texi

@@ -711,6 +711,54 @@ each one initialized to @var{initial}.
 @defun bool-vector-p object
 This returns @code{t} if @var{object} is a bool-vector,
 and @code{nil} otherwise.
+@end defun
+
+There are also some bool-vector set operation functions, described below:
+
+@defun bool-vector-exclusive-or a b &optional c
+Return @dfn{bitwise exclusive or} of bool vectors @var{a} and @var{b}.
+If optional argument @var{c} is given, the result of this operation is
+stored into @var{c}.  All arguments should be bool vectors of the same length.
+@end defun
+
+@defun bool-vector-union a b &optional c
+Return @dfn{bitwise or} of bool vectors @var{a} and @var{b}.  If
+optional argument @var{c} is given, the result of this operation is
+stored into @var{c}.  All arguments should be bool vectors of the same length.
+@end defun
+
+@defun bool-vector-intersection a b &optional c
+Return @dfn{bitwise and} of bool vectors @var{a} and @var{b}.  If
+optional argument @var{c} is given, the result of this operation is
+stored into @var{c}.  All arguments should be bool vectors of the same length.
+@end defun
+
+@defun bool-vector-set-difference a b &optional c
+Return @dfn{set difference} of bool vectors @var{a} and @var{b}.  If
+optional argument @var{c} is given, the result of this operation is
+stored into @var{c}.  All arguments should be bool vectors of the same length.
+@end defun
+
+@defun bool-vector-not a &optional b
+Return @dfn{set complement} of bool vector @var{a}.  If optional
+argument @var{b} is given, the result of this operation is stored into
+@var{b}.  All arguments should be bool vectors of the same length.
+@end defun
+
+@defun bool-vector-subsetp a b
+Return @code{t} if every @code{t} value in @var{a} is also t in
+@var{b}, nil otherwise.  All arguments should be bool vectors of the
+same length.
+@end defun
+
+@defun bool-vector-count-consecutive a b i
+Return the number of consecutive elements in @var{a} equal @var{b}
+starting at @var{i}.  @code{a} is a bool vector, @var{b} is @code{t}
+or @code{nil}, and @var{i} is an index into @code{a}.
+@end defun
+
+@defun bool-vector-count-population a
+Return the number of elements that are @code{t} in bool vector @var{a}.
 @end defun
 
   Here is an example of creating, examining, and updating a

etc/NEWS

@@ -923,6 +923,7 @@ The function `display-popup-menus-p' will now return non-nil for a
 display or frame whenever a mouse is supported on that display or
 frame.
 
++++
 ** New bool-vector set operation functions:
 *** `bool-vector-exclusive-or'
 *** `bool-vector-union'