Whitespace separating lines using extraction operator on file

[Kevin Grigorenko]

Okay, i've got a file open, call it infile. I've got a simple while(!eof),
but say the first line of my file is "<?xml version="1.0">" , then it takes
two iterations to get the string. first 'line' is "<?xml", then 'line' is
"version="1.0"" , what's happening that I need to change the behavior of so
that I can get lines delimitted by the newlines in the file?

std::string line;
std::ifstream infile("whateve r.txt", std::ios_base:: in);
while(!infile.e of())
{
infile >> line;
std::cout << line << std::endl;
line = "";
}
infile.close();

Thanks for your time,
Kevin Grigorenko

[Kevin Grigorenko]

"Buster Copley" <bu****@none.co m> wrote in message
news:bk******** **@newsg3.svr.p ol.co.uk...

Kevin Grigorenko wrote:

It is also quite interesting that whenever someone like myself makes these kinds of comments, people like yourself always reply as you have above, even though the reason they might have given a response as the first one that you gave is to "improve the signal-to-noise ratio." This sure looks like a lot of noise to me?!

That's really interesting. Do go on.

All I'm saying is that I disagree with "Please don't give them the location
of the appropriate FAQ." If you had just given me where to start in the FAQ
I would have not written the reply that I wrote. Point people to where they
need to go OR the GENERAL direction and then they will figure the rest out.
To point them nowhere as you did is what I consider noise on the board.

Kevin Grigorenko

[Kevin Goodsell]

Kevin Grigorenko wrote:
<snip>

You seem to have gotten your answer. Do you really feel it's wise to now
engage in a flame war with another member of the group who did nothing
out of line? Tempting regulars to killfile you is usually not a good
idea, if you hope for the group to be a useful resource.

-Kevin
--
My email address is valid, but changes periodically.
To contact me please use the address from a recent posting.

[Buster Copley]

Kevin Grigorenko wrote:

All I'm saying is that I disagree with "Please don't give them the location
of the appropriate FAQ." If you had just given me where to start in the FAQ
I would have not written the reply that I wrote. Point people to where they
need to go OR the GENERAL direction and then they will figure the rest out.
To point them nowhere as you did is what I consider noise on the board.

Yes, I quite see your point. And you can be quite charming, when you put
your mind to it. I'll certainly consider what you have said.

Regards,
Buster.

[Kevin Grigorenko]

[...]

Please in the future read the FAQ before posting. That's basic
Netiquette. (Honestly, I don't expect people to read the whole thing...
it's quite long. But you should at least try to locate your answer there
first.)

I actually did, I went there and found nothing blatantly related to my
question, so I posted it here.

[...]
I can't actually find the exact entry right now. What you want is

[...]

It's funny you mention that, I can't either! I did a search for getline on
the FAQ, and it's not there.

Buster Copley, can you please point me to where the use of getline can be
found in the FAQ (this is not meant to by sarcastic in anyway, and if Buster
does, then good for him, but if he doesn't then that means his baseline for
his complete argument is completely false).

Thanks,
Kevin Grigorenko

[Kevin Grigorenko]

"Kevin Goodsell" <us************ *********@never box.com> wrote in message
news:oW******** *********@newsr ead4.news.pas.e arthlink.net...

Kevin Grigorenko wrote:
<snip>

You seem to have gotten your answer. Do you really feel it's wise to now
engage in a flame war with another member of the group who did nothing
out of line? Tempting regulars to killfile you is usually not a good
idea, if you hope for the group to be a useful resource.

-Kevin
--
My email address is valid, but changes periodically.
To contact me please use the address from a recent posting.

Listen, I'm sorry, I tried to be nice during this whole thing and provide
logical arguments. The simple fact is that I find some regular posters here
to be so audacious with some of their posts, it helps nobody. I can't even
find the FAQ that buster alluded to. Why can't we just be a community and
help each other. I've wasted just as much of my time as everyone else's
writing all of these posts. I probably just could have done a search on
google and found my answer, but I thought, "Hey, it's a pretty simple
question, i'm sure someone can answer it or point my in the right
direction." I just found Buster's reply to my post to be very
disrespectful, irregardless of the fact that it complied perfectly with the
netiquette as written on the FAQ.

Help each other out!

Kevin Grigorenko

[Buster Copley]

Kevin Grigorenko wrote:

I can't actually find the exact entry right now. What you want is

[...]
It's funny you mention that, I can't either! I did a search for getline on
the FAQ, and it's not there.

Buster Copley, can you please point me to where the use of getline can be
found in the FAQ (this is not meant to by sarcastic in anyway, and if Buster
does, then good for him, but if he doesn't then that means his baseline for
his complete argument is completely false).

You're right, I was wrong. But I think if you reread the thread, most of
the argument was down to you. After I misdirected you to the FAQ, mostly
I was just commenting on your attitude problem.

Fire away,
Buster.

[Kevin Grigorenko]

"Buster Copley" <bu****@none.co m> wrote in message
news:bk******** **@news6.svr.po l.co.uk...

Kevin Grigorenko wrote:

I can't actually find the exact entry right now. What you want is

[...]
It's funny you mention that, I can't either! I did a search for getline on the FAQ, and it's not there.

Buster Copley, can you please point me to where the use of getline can be found in the FAQ (this is not meant to by sarcastic in anyway, and if Buster does, then good for him, but if he doesn't then that means his baseline for his complete argument is completely false).

You're right, I was wrong. But I think if you reread the thread, most of
the argument was down to you. After I misdirected you to the FAQ, mostly
I was just commenting on your attitude problem.

Fire away,
Buster.

Well look, I agree that I was the one doing the firing from the start. And
I don't want to start a fight over this, I would just like to see this
newsgroup a little bit more mechanic. Simple question = simple answer ||
simple redirection. I'm not faulting you for pointing me to a non-existent
FAQ, but if you take the one actually interesting comment that I made
throughout this thread, which is that the netiquette provided on the FAQ
page about "Please don't give them the location
of the appropriate FAQ," then this whole situation would have been avoided.
You would have went to try to find where it is, and if it was there,
depending on your mood you would have either given me the direct answer or
just pointed me to the section (which is ALRIGHT, it's fine to make people
dig a little), and in this case it wasn't there, so you probably would have
just replied with the answer as I'm sure that you knew it.

Anyway, let's just follow Rob Williscroft <rt*@freenet.RE MOVE.co.uk>'s
example and be very mechanical about this (he gave the first answer of this
I think without any comments or asides). If I had posted "What is
inheritance?", okay bust on me for noise, but even though the question I
posted was quite simple (I actually realized the answer once I saw it, but
I've been out of C++ for a while, hence the couple of posts today for the
first time in a while), it would have been just as simple to reply with the
answer, that's the only point I'd like to make.

Thank you,
Kevin Grigorenko

[Rob Williscroft]

Kevin Grigorenko wrote in news:bk******** **@f04n12.cac.p su.edu:

Thanks. Following the loop, how would I know if there was an error or
if the loop exitted simply because of completion? Would checking
infile.eof() tell me whether it got to the end or not, and if
infile.eof() is false, can I assume there was some kind of stream
error?

Yes IIUC the eof() flag is set when you try to read at the EOF,
so if some other error occurs first eof() shouldn't be set.

Some more info here on stream states:

http://www.dinkumware.com/manuals/reader.aspx?b=p/
&h=ios.html#ios _base::iostate

or http://tinyurl.com/na3o

You'll hit a redirect first just click on the logo to get to the
real page.

Rob.
--
http://www.victim-prime.dsl.pipex.com/

[Christian Brechbühler]

Kevin Grigorenko wrote:

std::string line;
std::ifstream infile("whateve r.txt", std::ios_base:: in);
while(!infile.e of())
{
infile >> line;
std::cout << line << std::endl;
line = "";
}
infile.close();

I see you got a lot of flame for this. I'll try an answer.

Use getline(infile, line) instead of infile >> line. See 20.3.15 in
Stroustrup's C++.

Christian