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| author | Guido van Rossum <guido@python.org> | 1996-05-02 15:16:59 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 1996-05-02 15:16:59 (GMT) |
| commit | 59b328e11ea53cc24146a1649c3727dfe24aa88b (patch) | |
| tree | ed283278692b0ec3a7e3bfb81bf7ea7819ab8072 | |
| parent | e71c5a758523b688bbf0975e641a9df8e3fe377a (diff) | |
| download | cpython-59b328e11ea53cc24146a1649c3727dfe24aa88b.zip cpython-59b328e11ea53cc24146a1649c3727dfe24aa88b.tar.gz cpython-59b328e11ea53cc24146a1649c3727dfe24aa88b.tar.bz2 | |
Added warning about behavior of open mode 'a' (or 'a+').
| -rw-r--r-- | Doc/lib/libfuncs.tex | 5 | ||||
| -rw-r--r-- | Doc/libfuncs.tex | 5 |
2 files changed, 8 insertions, 2 deletions
diff --git a/Doc/lib/libfuncs.tex b/Doc/lib/libfuncs.tex index 34d2928..088f969 100644 --- a/Doc/lib/libfuncs.tex +++ b/Doc/lib/libfuncs.tex @@ -265,7 +265,10 @@ any kind of sequence; the result is always a list. \code{fopen()}: \var{filename} is the file name to be opened, \var{mode} indicates how the file is to be opened: \code{'r'} for reading, \code{'w'} for writing (truncating an existing file), and - \code{'a'} opens it for appending. Modes \code{'r+'}, \code{'w+'} and + \code{'a'} opens it for appending (which on {\em some} {\UNIX} + systems means that {\em all} writes append to the end of the file, + regardless of the current seek position). + Modes \code{'r+'}, \code{'w+'} and \code{'a+'} open the file for updating, provided the underlying \code{stdio} library understands this. On systems that differentiate between binary and text files, \code{'b'} appended to the mode opens diff --git a/Doc/libfuncs.tex b/Doc/libfuncs.tex index 34d2928..088f969 100644 --- a/Doc/libfuncs.tex +++ b/Doc/libfuncs.tex @@ -265,7 +265,10 @@ any kind of sequence; the result is always a list. \code{fopen()}: \var{filename} is the file name to be opened, \var{mode} indicates how the file is to be opened: \code{'r'} for reading, \code{'w'} for writing (truncating an existing file), and - \code{'a'} opens it for appending. Modes \code{'r+'}, \code{'w+'} and + \code{'a'} opens it for appending (which on {\em some} {\UNIX} + systems means that {\em all} writes append to the end of the file, + regardless of the current seek position). + Modes \code{'r+'}, \code{'w+'} and \code{'a+'} open the file for updating, provided the underlying \code{stdio} library understands this. On systems that differentiate between binary and text files, \code{'b'} appended to the mode opens |