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Re: [MIT-Scheme-devel] hash-table/modify!
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From: |
Taylor R Campbell |
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Subject: |
Re: [MIT-Scheme-devel] hash-table/modify! |
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Date: |
Sun, 20 Dec 2009 03:34:53 -0500 |
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User-agent: |
IMAIL/1.21; Edwin/3.116; MIT-Scheme/7.7.90.+ |
Date: Sun, 20 Dec 2009 00:30:22 -0800
From: Joe Marshall <address@hidden>
What would happen if the modifier procedure added or deleted an element
from the table? I'm thinking about the case where we've found the cell
pointing at the entry, but the modifier code causes a rehash and the
bucket links are rethreaded while we're trying to walk them.
That's a screw case that blocking interrupts doesn't change. The
modifier procedure is not supposed to update the table.