Could you first define what you mean by exists in this context?

You're asking the wrong person. I'm trying to satisfy the OP, and like I said before, his question was a bit vague. Perhaps he would like to know if there's exists a given variable in the program. (That can be determined by peeking at the symtab, with the caveat I previously mentioned.)

In reply to Re^14: Using a sting with a variable name by ikegami
in thread Using a sting with a variable name by bingohighway

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