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(ccmode)Other Special Indentations

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Other Special Indentations
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   In `gnu' style (Note: Built-in Styles), a minimum indentation is
imposed on lines inside top-level constructs.  This minimum indentation
is controlled by the style variable `c-label-minimum-indentation'.  The
default value for this variable is 1.

   One other customization variable is available in CC Mode: The style
variable `c-special-indent-hook'.  This is a standard hook variable
that is called after every line is indented by CC Mode.  You can use it
to do any special indentation or line adjustments your style dictates,
such as adding extra indentation to constructors or destructor
declarations in a class definition, etc.  Note however, that you should
not change point or mark inside your `c-special-indent-hook' functions
(i.e. you'll probably want to wrap your function in a `save-excursion').

   Setting `c-special-indent-hook' in your style definition is handled
slightly differently than other variables.  In your style definition,
you should set the value for `c-special-indent-hook' to a function or
list of functions, which will be appended to `c-special-indent-hook'
using `add-hook'.  That way, the current setting for the buffer local
value of `c-special-indent-hook' won't be overridden.

   Normally, the standard Emacs command `M-;' (`indent-for-comment')
will indent comment only lines to `comment-column'.  Some users
however, prefer that `M-;' act just like `TAB' for purposes of
indenting comment-only lines; i.e. they want the comments to always
indent as they would for normal code, regardless of whether `TAB' or
`M-;' were used.  This behavior is controlled by the variable
`c-indent-comments-syntactically-p'.  When `nil' (the default), `M-;'
indents comment-only lines to `comment-column', otherwise, they are
indented just as they would be if `TAB' were typed.

   Note that this has no effect for comment lines that are inserted with
`M-;' at the end of regular code lines.  These comments will always
start at `comment-column'.


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