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--- howtos:toolcoding:common_history_and_background_checks [2010/09/14 16:40]
marcus.williams
+++ howtos:toolcoding:common_history_and_background_checks [2010/09/29 17:59] (current)
marcus.williams
@@ Line 20: / Line 20: @@
 FIXME - do we have a best practice on the quit() return code?
+===== Simulator - both history and background optional=====
+<code>
+integer $index
+$index = 1
+if $history == true
+	$index = $index + 1
+endif
+if $background == true
+	$index = $index + 1
+endif
+</code>
+Note the use of $index for indexing the appropriate view.
+===== Simulator - history required, background optional =====
+<code>
+if $history == false
+	say ("this view must be run with a history")
+	quit (1)
+endif
+integer $index
+if $background == false
+	$index = 2
+else
+	$index = 3
+endif
+</code>
+Note the use of $index for indexing the appropriate view.

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