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In most programming languages, the operator ++ is equivalent to the statement -= 1;.
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menu_item_opts(3curses) [opensolaris man page]

menu_item_opts(3CURSES) 				     Curses Library Functions					   menu_item_opts(3CURSES)

menu_item_opts, set_item_opts, item_opts_on, item_opts_off, item_opts - menus item option routines SYNOPSIS
cc [ flag... ] file... -lmenu -lcurses [ library... ] #include <menu.h> int set_item_opts(ITEM *item, OPTIONS opts); int item_opts_on(ITEM *item, OPTIONS opts); int item_opts_off(ITEM *item, OPTIONS opts); OPTIONS item_opts(ITEM *item); DESCRIPTION
set_item_opts() turns on the named options for item and turns off all other options. Options are boolean values that can be OR-ed together. item_opts_on() turns on the named options for item; no other option is changed. item_opts_off() turns off the named options for item; no other option is changed. item_opts() returns the current options of item. O_SELECTABLE The item can be selected during menu processing. RETURN VALUES
Except for item_opts(), these routines return one of the following: E_OK The routine returned successfully. E_SYSTEM_ERROR System error. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
curses(3CURSES), menus(3CURSES), attributes(5) NOTES
The header <menu.h> automatically includes the headers <eti.h> and <curses.h>. SunOS 5.11 31 Dec 1996 menu_item_opts(3CURSES)

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