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Re: multiple defintions error


> extern inline would mean that the function is to be inlined but is
> implemented in some other file.

It means it is to be inlined if possible, but if it can't be inlined -
that could be because it is too big, contains constructs that defy inlining,
or because it's a recursive call - don't provide an out-of-line copy
of this function, becaus it is provided in an external file.

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