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Patch #809535: Mention behaviour of seek on text files. Backported to 2.3.

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Martin v. Löwis 2003-10-18 09:38:01 +00:00
parent ad3fc44ccb
commit 849a972f35
2 changed files with 9 additions and 2 deletions
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7
Doc/lib/libstdtypes.tex
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@ -1337,7 +1337,12 @@ flush the read-ahead buffer.
\method{seek()} operations will be undone at the next write. If the
file is only opened for writing in append mode (mode \code{'a'}),
this method is essentially a no-op, but it remains useful for files
opened in append mode with reading enabled (mode \code{'a+'}).
opened in append mode with reading enabled (mode \code{'a+'}). If the
file is opened in text mode (mode \code{'t'}), only offsets returned
by \method{tell()} are legal. Use of other offsets causes undefined
behavior.
Note that not all file objects are seekable.
\end{methoddesc}
\begin{methoddesc}[file]{tell}{}