C standards question

[Ulrich Drepper]

Zack Weinberg <zack@rabi.columbia.edu> writes:

> In other words, does an fpos_t cookie remain valid if the stream is
> closed and reopened (on the same file), even on systems where a file
> isn't an unstructured stream of bytes?

No.  There is no guarantee the files hasn't changed in between and the
fpos_t structure could also contain references to some data in the
FILE structure (if this would be desireable).

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