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Order of operations in SET #28
Description
In which order are the arguments of SET evaluated, if we have something like this: SET(a=2,b=a+a)?
- first all right hand sides are evaluated and then the assigned, i.e., like this python code:
a,b=2,a+a - from left to right like this python code:
a=2; b=a+a
It seems like the current implementation behaves like 2. even though 1. would be more natural. Checked with this snipped:
SET(a=1)
SET(a=2,b=a+a)
ASSERT(b==2)
Activity
[-]Order of operations[/-][+]Order of operations in SET[/+]eldering commentedon Mar 14, 2026
The second is the current behaviour indeed, see https://github.com/DOMjudge/checktestdata/blob/main/libchecktestdata.cc#L271-L273.
I'd be inclines to say that the order is implementation defined, so if you want to make sure that
SET(a=2,b=a+a)behaves as you expect, you write it as two separateSETcommands.