the data in a text file

[4Gb4jE8b]

I've been stuck on this for weeks trying getline, read, seemingly everything. It's ridiculous :P

So can someone please answer me, in the following code, how would I make it so buffer is equal to the data inside the text file opened by fin.open()?

various declarations
using namespace std;
int main
{
	char* buffer;
	int last;
	fin.open(Parent_file.c_str());
	last = ceil(end);
        //here I need buffer = the text document.
	fin.close();
	pause();
}

[xander333]

Why would you need to do that?
What's the code supposed to do?
If you tell that it'll be easier for us to help you ;)

[4Gb4jE8b]

i need to do that because the rest of the code works very very nicely when buffer is equal to a string of text (sounds cliche and obvious but hey). I've tested it using buffer = "whatever example text i want." and made everything work out nicely.

The program is actually going to be used for splitting up a text file into sets of 4kb. Like I said, i've gotten everything very nicely worked out up until this part. Why 4kb? Because i want to read books on my iPod.

sooooo.... any ideas on how i could make buffer equal the text in the document?

[ne555]

//size is the length of the text
buffer = new char[size]; //or size+1 so it ends with '\0'
fin.read(buffer, sizeof(char)*size); //fin must be open in binary mode 

Or read line by line, and append with a '\n' character

[4Gb4jE8b]

I've been stuck on this for weeks trying getline, read, seemingly everything. It's ridiculous :P

ne555, i've tried read, i've tried that code. It doesn't work. In this case it's returning a buffer not being initialized error. that was a pch issue, my bad. In this case it's storing not storing anything though.

How can I do it without the file being in binary mode?

[4Gb4jE8b]

...anybody?

[sohguanh]

http://www.cplusplus.com/reference/iostream/istream/getline/

You use getline and it is not working ? How about provide a runnable short code snippet so we can try out ourselves too.

[4Gb4jE8b]

That's kind of really hard to do, as each variable is stored and used in each part of the program. But here, i've attached a full copy of the cpp file and header.

http://www.filedropper.com/filesplitter
http://www.filedropper.com/stdafx

hopefully these sites work, sorry if they don't, let me know and i'll find another site (or you can reference one yourself!)

edit:
they do but sorry bout the ads

[ne555]

	fin.open(Parent_file.c_str());
	fout.open(std_name.c_str());
	last = ceil(end);
	buffer = new char [last];
	fin.getline(buffer,last);
	fin.close();
	cout << "buffer is..." << buffer << "\n";
	pause();

What is the output? (IIRC should be one line)

You could forget about dynamic allocation with strings

string buffer;
getline( fin, buffer );

Edit: added context

[4Gb4jE8b]

I don't quite understand what you mean ne555

[ne555]

buffer just contains the first line of your file, not all the file.

buffer = new char [last+1];
fin.getline( buffer, last+1, EOF ); //delim is '\n' by default
buffer[last] = '\0';

[ne555]

Also, don't call main as a recursive function.
You open fout in line 78, but is not closed.

		last_char = in_text.rfind('.',endp);
		if(last_char == string::npos)

The division logic is hard to follow. The file was divided, but not in equal parts, and were repeated data
3.4K 8.0K 4.6K 640

[4Gb4jE8b]

I understand not to call main, but i've no idea how to get around it in this case.

Fout being open was due to previous lines of script that i have since deleted, thank you for catching it.

the division (should) make it so that each file ends at a period and that the next starts up after the space after the end of the period.

When i directly set buffer equal to more than 4kb of text in the code, this is exactly what happened.

I don't understand what you mean by "and were repeated data 3.4K 8.0K 4.6K 640"

[ne555]

Those were the sizes of the files. With repeated data I mean something like

Original: "the quick brown fox jumps over the lazy dog"
First: "the quick brown"
Second: "brown fox jumps over the"
Third: "jumps over the lazy dog"

[4Gb4jE8b]

interesting. well, considering this still isn't working, even though i implemented what you said, i think i'll worry more about this than that for now. Buffer still isn't storing anything at all for me.

[4Gb4jE8b]

any idea why or how to fix that?

[4Gb4jE8b]

I'm now trying fin.get() and a stringbuf to try and make this work

        stringbuf buffer;
	fin.open(Parent_file.c_str());
	fin.get(buffer,EOF);
	fin.close();
	cout << "buffer is... '" << buffer.str() << "'\n";
	pause();

however fin.get is returning null as well as getline and read did. What's up with that?