Question : case statement

I am having to use a switch/case/break block... in fact I am using a few of them.
Even though the test could only ever satisfy one case block, it won't let me use the same variable names twice.
So I am forced to prefix the var with a ldifferent letter for each block iVar, oVar etc

Is this expected behaviour?
I asume that the unused vars are never actually created and hogging resources?
Are switch/case blocks a bad thing performance-wise?

Answer : case statement

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