incorrect evaluation

[Thomas Bock]

In my opinion the following condition should print a star

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if 1 or 0 and 0 then print "*"
It is the same as

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if 1 or (0 and 0) then print "*"
or

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1+0*0
For better understanding we will add the brackets.
PxPlus doesn't print a star. I'm curious, what am I missing?

[James Zukowski]

The 'AND' and 'OR' operators have the same precedence level, so they are evaluated left-to-right. In this case, it essentially works out to be:

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if (1 or 0) and 0 then print "*"