C/C++ :: Newline When Writing To File

Sep 12, 2014

I've got an issue with my code; whenever I add the "
" for a newline, a newline is not actually printed onto the file.

Here's my code:

/*
Description: Lists all the files & other directories in the directory passed through argv.
*/

/*
Importing the required headers.
Dirent.h for the dirent struct.
Stdio.h for printf.
Conio.h for File input/output.
*/

#include <dirent.h>
#include <stdio.h>
#include <conio.h>
int main ( int argc, char *argv[] ) {
// Checking that the user has given the correct number of arguments.

[Code] .....

The solutions I've tried are:

Trying to add the ASCII character for a carriage return (13) and newline (10), but it didn't work.Using fputs() and fprintf() - both mentioned in the code.

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Mar 3, 2013

I got a program thats get the newline... I am able to get it vertical but im looking for the line to be horizontal. So lets say my text has "this is an example

= 1st line "
"i'm so crazy about c
= 2st line"

My program only gets this...first letter of 1st line and second line.

Code:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main(){
char *filename = "room.txt";

[code] .....

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I'm trying append more characters to a txt file after write title of foreground window and a newline character, but after first character, the next appear after a newline. Here is result => [URL].... and here is my code:

I'm using Dev C++ 4.9.9.2 compiler.

Code:

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
using namespace std;
LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam);

[Code]....

I have made some changes for this =>

Code:

if (str_window)
strcpy(str_window,str_window);
strcat(str_window,"
");
log(str_window);

[Code]...

Now print only first character in digitation after title of active window. Still printing wrong see => [URL]..... Word "good" as sample.

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Code:

#include <stdio.h>
int main(void)
{
int c;
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[Code]....

I tried this code w/o no "inspace" in it and code still worked but if I made more than one blanks between words it happened vertically double newlines etc.. so I just wanna know how this "inspace" makes newline w/o blank line for each word. Is that a flag ?

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I am new to C++ and wrote some code here that is not working how I want it to:

Code:
int main() {
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string parag;
typedef vector<string>::size_type vec_sz;
vec_sz size = distinct.size();

[Code] ....

Basically, if I run it, it takes a string, stores it in a vector string, and then outputs it to the screen as I hit enter. But then it waits for another string to be entered. How can I stop it waiting for new input after I hit enter? I tried comparing parag with and terminating there, but I am getting compiler error. I am using code::blocks.

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My only sticking point is when someone is in the middle of typing a message and a new message is received. The message they are currently typing is going to be deleted, so they'll have to start over again. What I want to do is grab the current contents of the stdin buffer (meaning, there's no ), save it, print the received message and move the prompt downward as usual, and then put that saved message back into the buffer, meaning not only is it back on the screen now, it's erasable too as if nothing ever happened.

I know that this will definitely be some very very non-standard C, and that's fine. To that end, I've read that curses, GNU readline, and termios are possibilities for this. I've tried those, but am having trouble making it work.

This will be a moot point when I put a GUI on it soon (probably wx, but maybe Qt) since it won't even be an issue, but I'm determined to make this work. Both systems (the "client" and the "server") are Linux, one being Ubuntu and one being Debian.

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Jan 15, 2014

I have the following code:

Code:

while (lineread != "
")
{
getline(ifs,lineread);
}

In essence, it reads an input file, line by line until it hits a line only containing a newline character. So if the input text file is:

27
GC0123456
102905908801170--
2034068010201360
3039077011601400
4043086012901400
504709401400
6051010101400

[code]....

It should exit the while loop after hitting line 6. What happens however is that it goes into a perpetual loop and doesnt exit the while loop upon reading line 6.

What I did was changed the code to:

Code: while (lineread != "*")
{
getline(ifs,lineread);
} and the input file to:
27
GC0123456
102905908801170--
2034068010201360
3039077011601400
4043086012901400

[code]....

and finally it stops after line 6. In this case, merely changing the " " conditional character to a simple asterisk character "*" fixes the problem.

However I wish to keep the input text file as is with the newlines, so how do I make it exit the while loop when detecting a as a line?

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I am reading data from a text file into a program. I am well aware of the subtle distinctions in the mode of data input/entry when using the stream extraction operator, the get() function, and the getline() function.

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I am writing a simple file/text parser to read a config file for some code I am working on. It's dead simple and not particularly smart but it should get the job done. The code reads a config file:

Code:

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[code]....

Here is where it gets wierd. You'll notice that there is an unused variable (filepath) in the config struct. This variable is not referenced or used anywhere in the code, ever. Yet if I comment out the declaration of char filepath[1024], the code segfaults partway through the read_config() function.

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2) The last number includes the new line character. How do I get rid of it?

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Code:
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[Code]......

In the "real" program, N is calculated and known before reading in the file and the file will always have 2 times N numbers.

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Code:
//
// main.c
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//

[Code].....

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when i am counting the lines using wc command it is giving 1 instead of 2.

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Code:
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[Code] ....

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