"ab" mode in fopen

[pereges]

Can I use this mode to create a new file , add some data and then
append more data ? How is it different from ab+ ?

[Kenneth Brody]

[Critical part of question in subject: "ab" mode in fopen]

pereges wrote:

>
Can I use this mode to create a new file , add some data and then
append more data ?

Yes.

How is it different from ab+ ?

"ab" is "append; open or create binary file for writing at end-of-file"
and "ab+" is "append; open or create binary file for update, writing at
end-of-file".

In other words, the difference is that "ab" is write-only, while "ab+"
is read/write.

--
+-------------------------+--------------------+-----------------------+
| Kenneth J. Brody | www.hvcomputer.com | #include |
| kenbrody/at\spamcop.net | www.fptech.com | <std_disclaimer.h|
+-------------------------+--------------------+-----------------------+
Don't e-mail me at: <mailto:Th*************@gmail.com>

[pereges]

On Apr 10, 10:18 pm, Kenneth Brody <[e-mail]:

[Critical part of question in subject: "ab" mode in fopen]

pereges wrote:

Can I use this mode to create a new file , add some data and then
append more data ?

Yes.

How is it different from ab+ ?

"ab" is "append; open or create binary file for writing at end-of-file"
and "ab+" is "append; open or create binary file for update, writing at
end-of-file".

In other words, the difference is that "ab" is write-only, while "ab+"
is read/write.

Then in that case, ab+ is better if you want to do write followed by
read in same function.

[Joachim Schmitz]

pereges wrote:

On Apr 10, 10:18 pm, Kenneth Brody <[e-mail]:

>[Critical part of question in subject: "ab" mode in fopen]

pereges wrote:

>>Can I use this mode to create a new file , add some data and then
append more data ?

Yes.

>>How is it different from ab+ ?

"ab" is "append; open or create binary file for writing at
end-of-file" and "ab+" is "append; open or create binary file for
update, writing at end-of-file".

In other words, the difference is that "ab" is write-only, while
"ab+" is read/write.

Then in that case, ab+ is better if you want to do write followed by
read in same function.

replace 'better' with 'correct' 8-)

Bye, Jojo