[PATCH v2] Fix offset caching for streams and use it for ftell (BZ #16680)

Rich Felker dalias@aerifal.cx
Wed Mar 12 18:18:00 GMT 2014


On Wed, Mar 12, 2014 at 11:41:27PM +0530, Siddhesh Poyarekar wrote:
> Carlos suggested that I write up a brief description of ftell and its
> interaction with the offset cache, so here it is:
> 
> https://sourceware.org/glibc/wiki/File%20offsets%20in%20a%20stdio%20stream%20and%20ftell

At least one line in yout table is wrong: ftell can never change the
offset when the handle is inactive. You have it changing the offset in
this case for append-mode files. I don't see why you want to do this.

Rich



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