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TIL: many compilers allowed identifiers of any length, but only examined the first 8 characters to determine what the identifier pointed at.

So `foobarbaz` and `foobarbazqux` are both valid, but refer to the **same** variable!

What I _didn't_ learn was why anyone thought this was a good idea. I assume it was for performance reasons, since Free Pascal doesn't do it anymore (wiki.freepascal.org/Identifier) and 8 makes me guess it has something to do with memory representation.

Anyone know?

wiki.freepascal.orgIdentifier - Free Pascal wiki
Feb 28, 2021, 02:16 PM·Public
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