From mboxrd@z Thu Jan  1 00:00:00 1970
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From: Costin Chirvasuta <costinc@gmail.com>
Date: Fri, 12 Aug 2016 15:30:28 +0300
Message-ID: <CAPv5z_1K8M+R84f+athA9C77MUSSQnk=Z9idQ8y=6j4K1XdDWA@mail.gmail.com>
To: 9fans <9fans@9fans.net>
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Subject: [9fans] bufreset deletes b->nbl-1 blocks?
Topicbox-Message-UUID: 96f99098-ead9-11e9-9d60-3106f5b1d025

I'm reading the sam source (very educational) and I've stumbled across
a piece I don't understand, in buff.c:^bufreset:

for(i=b->nbl-1; --i>=0; )
    delblock(b, i);

Doesn't this delete b-nbl-1 blocks? Also delblock would always call
memmove, moving 1 block at the end, if I read it correctly.