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How to check if a symbol has been defined?
From: |
flamasuta |
Subject: |
How to check if a symbol has been defined? |
Date: |
Tue, 25 Nov 2003 20:58:12 +0300 (MSK) |
User-agent: |
eGroups-EW/0.82 |
Is it possible to check if a symbol has already been defined?
For example, in pseudo-code:
if (symbol is defined) then
do that thing
else
do another thing
endif
Or, at least, is it possible to re-define a symbol (only if it is
currently undefined)?
I've tried to use @If and @Case but...
Thank you.
- How to check if a symbol has been defined?,
flamasuta <=