I need to write a program that reads a paragraph from a file (i dont know its length) and i need to read it with spaces
i thought of using getline() function but there were problems:
1) how to detect End Of File
2) how to use getline while reading from file
and thought of reading one character at a time but it didnt read spaces
I am practicing with C++ since I done most of C already and I have a problem with reading spaces from a .txt file.
I created a little program that creates a wannabe Cube in wannabe 3D xd, well to appear as 3D like:
Code:
cout << " O------O" << endl;
cout << " / /|" << endl;
cout << " / / |" << endl;
cout << " / / |" << endl;
[Code] .....
The actual code is a bit longer since it offers you to input the size and then it draws the pic. Now that wasn't so hard and I've done that but now I wanted to implement the "MessageBox" func for output.
I managed to write the cube in file cube.txt but when I'm reading from it 1 char at a time since I need to output as char array it avoids all spaces and new lines and just puts all symbols in the same row.
I didn't have that issue with C and I've found on stackoverlow a solution using strings & getline but I need it to be in "char" form.
How to actually read spaces and newlines? This is my current code for reading from file:
Code:
ifstream di("kocka.txt", ios_base::in);
char c[5000];
int br=0;
while( di >> c[br])
{
br++;
}
MessageBox(NULL, c, "Kocka", MB_ICONHAND);
di.close(); P.S kocka = cube (in croatian )
I have a problem who must print the sentences who have lenght more than 20 characters. I dont know why, but it prints just the first words. Look what i made.
#include<stdio.h>
#include<conio.h>
int main()
[Code]....
For instance :
Give the number of sentences : 3
First sentence : I like the website bytes.com
Second sentence : I like more the website bytes.com
Third sentence : bytes.com
After I compile the program it should print the first two sentences.
How I can manipulate certain strings. This program here is supposed to randomly scramble any word/sentence input. However, I notice that even the empty spaces get moved; is there any way to stop that from happening? I would want the empty spaces to stay in their input positions.
#include <iostream>
#include <string.h>
#include <ctime>
#include <cstdlib>
#include <fstream>
#include <string>
using namespace std;
[Code] ....
This is my program and i dont know what is the better strategy to display the output perfectly align with the title, when i input a long variable or short the variable move and it does not align with its title. what can i do.
#include <iostream>
#include <string>
#include <string.h>
#include <cstdlib>
#include <cstring>
#include <iomanip>
using namespace std;
struct book {
[Code] ....
It appears that when you enter command line arguments or use fgets() to input a string you can assign that string to another string variable using the assignment operator. But when you read from a file, you can't do that, you get a segfault. It seems the only way to get around that is to malloc the string and use the strcpy function.
Code:
#include <stdio.h>
struct person {
char *names[2];
};
void readFile(struct person p){
FILE *file = fopen("names", "r");
[Code]....
I have a text file with scores and names.
I have to read the score into an array and the names into an arrays also
27,Tom Jefferson
23,Ozzie Osborne
18,Wilt Chamberlain
15,Marie Antoinette
I've gotten the score to display correctly, but i cant get the full names. My function only reads the first names
I wanted to improve the game from my last thread. I want to read and store a question in this format: Code: Who invented the BALLPOINT PEN?
A - Biro Brothers
B - Waterman Brothers
C - Bicc Brothers
D - Write Bothers
But when I use fgets() to read the string, it reads all the ' ' literally instead of outputting a real newline. Like if it read the above question, I want it to print something like this:
Code:
Who invented the BALLPOINT PEN?
A - Biro Brothers
B - Waterman Brothers
C - Bicc Brothers
D - Write Bothers
We are generating emails for freshman students, however, the system probably due to server overload fails to generate some emails. So I'm working on this c code( probably was a wrong choice) to search for regexp matching the generated emails and deleting from the list of students and propective emails.
I"m currently at the stage of making sure the code can find all the matching regexp from the student list file before deleting! But the code fails to read all matching regexp?
Code:
//Filename: SearchReplace.c
//Usage: This searches for lines in a file containing a particular work and deletes the lines.
//Licence: GNU P.L.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
[code] .....
What I'm missing. It recognizes some regexp and fails to recognise some. Been staring for hours!
I am trying to read strings to an char array from an .exe file and then i would check some of the strings, but the problem is that the only thing that is read from the file is the first string (MZ) and an 'square' that is some incorrect character. I am using fread to read from the file. Here is my code:
FILE * pFile;
long lSize;
char * buffer;
size_t result;
pFile = fopen("my_file.exe", "rb");
if( pFile == NULL) exit(1);
fseek(pFile,0, SEEK_END);
[Code] ....
(I want to read the whole file, its not that big)...
I need a program that reads the number of lines of a file and then several (max of 20) lines of text from a .txt file so an example of the .txt file is: 2 This is the first string This is string number 2 So it first reads the 2 and then reads the two lines of text. It stores the text in an array of pointers. The code i have so far is:
#include<stdio.h>
#include<string.h>
#include<ctype.h>
#include<stdlib.h>
[Code].....
It doesnt give me any errors but all it does is keep running and doesnt print anything out kind of like its in an infinite loop although i dont see how that could be possible.
I have to make a program to read a file with strings and determine if they are palindromes. The problem is that the program says that they're all palindromes.
int main() {
ifstream inFile;
ofstream outFile;
inFile.open("in.data");
outFile.open("out.data");
if (!inFile || !outFile) //to display error if input files are invalid
[code]....
This is about reading a "txt file" and storing the contents in a variable. But i've got problems with it because normally, it is space delimited, that is, values separated by spaces are considered different values. How am I going to make C++ read the whole line including spaces?
View 14 Replies View RelatedHow does one read the number of characters in a .txt file excluding the spaces? Here is my code so far. I am getting 67, which is the correct number including spaces but can't find out how to exclude them. Here's my code!
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
/////////------------------/////////
//Function Prototypes//
int fileLength();
[Code] .....
I must create a program (a simple main.cpp in console interface) which deletes two spaces for every newline in a file. If a line has no space, it goes straight to the next line to the end of the file. After the program is to resave the file contents into a new file that has the same name as the old, but change the extension to. Modif
The problem is I can not do that ... Do you have a sample code that does this?
Here's what I want to do:
So, basically the user imports a list of strings from a CSV file and the lines get read line by line and sorted in a listbox. If the user uploads the same file again that contains the same list of strings, a confirmation box with the following is supposed to be displayed:
"The list is the same. Are you sure you want to import this list of strings?" The options are yes, no, maybe.
If the user clicks on yes, all the strings get saved/put into the listbox regardless of whether or not they are repeated. No allows the user to to cancel the whole operation and return back to the screen for all samples. Maybe allows the user to individually pick which one they want saved or not. Maybe takes the user to a yes or no confirmation dialog box and it loops through all the strings in the csv file until the user has picked yes (accept) or no (deny). Only the confirmation box with yes and no should be looping.
What I have so far:
-Two confirmation boxes (I decided it would be easier for me to create two views and two viewmodels just for confirmation box setup - one with confirmation box of yes/no/maybe and one with confirmation box of yes/no).
-All the event handling is set and done.
-Reading the CSV file and checking for duplicates.
What I have problems with:
-When the call the confirmation dialogs...
Here's a snippet of what I have:
public void ReadImportedSamples(string filePath)
{
string line;
try
{
using (DDataContext context = new DDataContext())
{
using (StreamReader sr = new StreamReader(filePath))
{
[Code]...
So, I have two confirmation boxes, confirmationWindowSamplesListYN (only yes and no) and confirmWindowForSamplesList (with maybe).
Everything is set up fine. I am just wondering when the call the proper confirmation dialogs so that I can get the behavior above?
The requirement was to set the txt files information equal to a variable before and not to put it directly into the array.
#include <iostream>
#include <string>
#include <fstream>
#include <sstream>
using namespace std;
const int MAX = 24;
struct applicant_info {
[Code] .....
the txt doc looks something like this: file name: jobs4.txt
I have been skimming and searching but dont know how to word the search just right to find what I need to know. I have written simple stuff with the support of tutorials like weight conversion or loops counting up to a set number. Nothing amazing. The other day I found out how to input and print a string rather than a single text character which i though was bad ass. I even got it to read multiple strings on a single line and found a way to read multiple lines. I can even format it to read both integers and characters on the same line as long as I know the predefined format.
On to my question... How do I read multiple lines with both carecters and integers. for instance:
nissan 1996
toyota 1998
or more comples like
nissan gtr 1996
toyota markii 1998
I want to use
int year;
char make[10]; maybe need to use char make[10][10]; for an array i would guess.
char model[10]; optional for the extra data
but reproduce what i read in a different order. say...
1996 nissan
1998 toyota
vice the original format.
this is what I have tried.
Code: scanf("%s %s", &make,&year);
//The way I seen to read multiple lines was on here
scanf("%[^/t]", %make);
But this wont let me separate the two into two differnet definded data types. Let alone use printf to display them in reverse order.
General Purpose: Delete all "white spaces" in text file, until the read-in char is _not_ a whitespace (mark as start of text file).
Problem: Cannot seem to shift char's over properly. (I think my problem is the inner loop - however other code may lead to this problem - I do not know)
Code:
#include <fstream>
#include <iostream>
using namespace std;
bool trimWhiteSpace(fstream &file, char * charMemoryBlock) {
if (!file.is_open()) {
[Code] ....
I want to read a string of unknown length from stdin. I tried to follow the approach from this link.
[URL]....
My code is like this:
Code:
#include <iostream>
#include <string>
using namespace std;
int n;
cin >> n;
cout << "The value of n is " << n << endl;
string str;
getline(cin, str);
cout << "The entereed string is " << str << endl;
What I have noticed is that if I take integer input from cin (cin >> n in the above code before getline, the control does not stop on getline to take str as input from the console. If I don't do (cin >> n) before getline then the control stops on getline and takes the string as input.
What is the best way to read from console multiple strings of unknown length in combination with the integers?
I have this code for a computer project... (store management) but the character strings are not copied on text file..
#include<iostream.h>
#include<conio.h>
#include<fstream.h>
class Store {
public:
char *item_name[5];
store()
[Code] .....
Now when i run the program, it gives a error :::
ERROR
address 0x0
How can i write these strings to the text file?
I'm working on a project, and I'm trying to fill in various vectors from a given input file. The input file looks like:
<catalog>
<book id ="bk101">
<author>O'Brien, Tim</author> ....etc
My load vectors function looks like this: void load_vectors(vector<string>&id, vector<string>& author...etc)
I can't assume a limit on the number of books etc listed in this catalog, so I'm using the eof() function. However, I don't know how to write the loop to gather the correct strings and place them in the vectors.
Code: while(in.eof())
{ string text;
int index, index2;
getline(in, text);
int index = text.find("<author>");
int index2 = text.find("</author>");
a = index.lenght();
author.pushback[i] = text.substr(index + a, index2);
}
I have been trying to write this program that reads a file of courses and then stores only the unique courses in an array of strings.
for some reason it crashes while reading the 2nd line.
printf within the function are just for me trying to trace the problem.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char** uniqueCourses(FILE *fp, int *wordCount);
int main()
[code].....
My objectives for this program is to open and read a file "dict.txt" which has the following data:
4
dog
pepper
marker
teapot
It needs to rotate the inner letters one to the right so you'd end up with "mrkear" etc, and then write those words into a new file "scramble.txt" one per line.I'm having a lot of problems understanding the program. Compiling is giving me a lot of warnings/errors.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAXW 10 //max number of words in file
#define MAXS 81 //max size of string
}
[code]....
While I execute the fileprint function i was able to retrieve the record from the txt file. but at the end of the console im getting randoms number i have tried to understand what causing the problem. I have attached a screenshot....
Code:
void fileprint(){ Code: int c;
struct student{
long id;
char name[20];
int mid1;
[Code] .....
Write a program that reads several strings from a file. Display the number of words then display each word as shown in the sample below. Assume that the maximum number of string in the file is 100.
Sample Input (.in):
Smitty
Werbenjagermanjensen.
He
was
number
1!
Sample Output:
Total Number of Words: 6
Word[0] = Smitty
Word[1] = Werbenjagermanjensen.
Word[2] = He
Word[3] = was
Word[4] = number
Word[5] = 1!