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fix memcpy with same src and dest (Peter Klotz)

import/raw
weidai 2010-08-03 20:28:10 +00:00
parent b6c3bcc2dc
commit ef140bd158
1 changed files with 2 additions and 1 deletions
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3
trunk/c5/iterhash.cpp
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@ -66,7 +66,8 @@ template <class T, class BASE> void IteratedHashBase<T, BASE>::Update(const byte
} while (len >= blockSize);
}
memcpy(data, input, len);
if (len && data != input)
memcpy(data, input, len);
}
template <class T, class BASE> byte * IteratedHashBase<T, BASE>::CreateUpdateSpace(size_t &size)