bool CCoins::Spend(const COutPoint &out, CTxInUndo &undo) {
if (out.n >= vout.size())
return false;
if (vout[out.n].IsNull())
return false;
undo = CTxInUndo(vout[out.n]);
vout[out.n].SetNull();
Cleanup();
if (vout.size() == 0) {
undo.nHeight = nHeight;
undo.fCoinBase = fCoinBase;
undo.nVersion = this->nVersion;
}
return true;
}
bool CCoins::Spend(uint32_t nPos, CTxInUndo* undo)
{
if (nPos >= vout.size() || vout[nPos].IsNull())
return false;
if (undo)
*undo = CTxInUndo(vout[nPos]);
vout[nPos].SetNull();
Cleanup();
if (undo && vout.empty())
{
undo->nHeight = nHeight;
undo->fCoinBase = fCoinBase;
undo->nVersion = nVersion;
}
return true;
}
