Alternate Entry Name: F_SIZE
B: llinks = f.size(unit);
C: int f_size(FILE *unit);
F.SIZE returns the current size of a file. This can be a disk unit or some other kind of file.
If a temporary file is larger than 2**14 llinks, the size of the file cannot be determined precisely. There are a few other rare cases in which file size cannot be determined accurately. In such situations, F.SIZE makes its best guess of the file's current size and returns the negative of that size.
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