Please explain while loop which has test condition as treenode
FlexSim 19.1.2
The condition isn't NULL as long as the variable item gets a value to a next item. If the loop has set the label tally to 0 for all items on the conveyor, the next item after the last one will get the reference NULL. Then the loop is ending.
Usually while loop will work for true or false conditions. If true execute the code or false skip the code. Here variable item which returns a path reference for while(item) condition, then how the while loop will run. Is that considered to be true. If it is considered to be true then why it is considered to be true.Is Null is considered to be false.
Flexscript follows similar rules to C and C++ when it comes to implicit boolean conversions. A treenode behaves like a pointer in this context.
https://en.cppreference.com/w/cpp/language/implicit_conversion
Yepp, that is how it works. As long as it works , what does it matter that something is true and nothing is false.
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