Combination of 6 nos Post: 302967596

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Top Forums Shell Programming and Scripting Combination of 6 nos Post 302967596 by wbport on Thursday 25th of February 2016 12:21:08 PM

02-25-2016

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There is a way to create an array of a range of random numbers with each one occurring once with no duplicates.

Populate the first array with all possible values, call it "deck".
Varying a (loop ) subscript from last occurrence to first, get a random number, multiply it by that subscript, and floor it to get a new subscript.
Use the new subscript to move an item from "deck" to the loop subscript occurrence of the array "shuffle".
Move the last active occurrence of "deck" (looping subscript) to the new subscript occurrence of deck.

When the last occurrence of deck is chosen, the last item in "deck" will be moved to its own position but, because the looping subscript is decreasing, it will never be referred to again. The array "shuffle" is now ready to use.
If the same occurrence of "deck" is chosen again, it will contain a new value.

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hide_panel

panel_show(3CURSES)					     Curses Library Functions					       panel_show(3CURSES)

NAME

       panel_show, show_panel, hide_panel, panel_hidden - panels deck manipulation routines

SYNOPSIS

       cc [ flag ... ] file ... -lpanel  -lcurses  [ library .. ]
       #include <panel.h>

       int show_panel(PANEL *panel);

       int hide_panel(PANEL *panel);

       int panel_hidden(PANEL *panel);

DESCRIPTION

       show_panel() makes panel, previously hidden, visible and places it on top of the deck of panels.

       hide_panel() removes panel from the panel deck and, thus, hides it from view. The internal data structure of the panel is retained.

       panel_hidden() returns TRUE(1) or FALSE(0) indicating whether or not panel is in the deck of panels.

RETURN VALUES

       show_panel() and hide_panel() return the integer OK upon successful completion or ERR upon error.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       curses(3CURSES), panel_update(3CURSES), panels(3CURSES), attributes(5)

NOTES

       The header <panel.h> automatically includes the header <curses.h>.

SunOS 5.11							    31 Dec 1996 					       panel_show(3CURSES)