Hi,

I'm using the C API to implement function call. I've already recorded
the index of the function body and created a new node stream for the
function call. But I find that I have to call istream->size(istream)
before calling istream->seek. Or errors will be reported.
Is it because the input buffer is not ready or anything else? What is
the correct step to reset the index?

-- 
Best wishes,
Mu Qiao
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