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From: Sergio Demian Lerner <sergio.d.lerner@gmail.com>
Date: Sun, 20 Mar 2016 23:50:55 -0300
Message-ID: <CAKzdR-pk6WHRkKWHxkTtPps+fXn9VBnJiMf-9vRCmg=O1JODfw@mail.gmail.com>
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Subject: [bitcoin-dev] BIP147 minor error
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The BIP147 reads:
*Sigop cost* is defined. The cost of a sigop in traditional script is 4,
while the cost of a sigop in witness program is 1.
The new rule is total *sigop cost* =E2=89=A4 80,000.
But the code implements:
if (nSigOps + (nWitSigOps + 3) / 4 > MAX_BLOCK_SIGOPS)
... error....
Which is not the same.
For example:
nSigOps =3D 1
nWitSigOps =3D79999
Is not an error by BIP definition but it's an error by the implemented code=
.
Regards, Sergio.
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<div dir=3D"ltr"><div><div>The BIP147 reads:<br><p><i>Sigop cost</i> is def=
ined. The cost of a sigop in traditional script is 4, while the cost of a s=
igop in witness program is 1.
</p>
<p>The new rule is total <i>sigop cost</i> =E2=89=A4 80,000. <br></p><p>But=
the code implements:<br></p>if (nSigOps + (nWitSigOps + 3) / 4 > MAX_BL=
OCK_SIGOPS)<br></div><div>=C2=A0... error....<br><br></div>Which is not the=
same.<br></div><br>For example:<br><div><div>nSigOps =3D 1<br>nWitSigOps =
=3D79999<br><br>Is not an error by BIP definition but it's an error by =
the implemented code.<br><br></div><div>Regards, Sergio.<br></div></div></d=
iv>
--047d7bea423eb9faac052e862c2a--
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