Visual C++ :: Can't Read In A Text File To Load A Struc
Apr 15, 2013
I am doing an exercise that reads in a text file and loads the data into a struct. My problem is it doesn't read anything from the text file. I think it's the way I'm loading the data. Oh, it does read in the first record that tells the program how many contributor records to create, but nothing after that. Here it is:
Code:
//
#include <iostream>
#include <fstream>
#include <cstdlib>
const int strsize = 30;
const int SIZE = 60;
I have a group assignment were we need to load sokoban levels from text file. We have loaded the file in a vector but how we can parse the file for it to be used during the game.
We read about malloc and know how to access each character from the vector, but how can we select a particular level after the user inputs an the level integer number?
So I am working on a FUSE filesystem and I currently have the need to load the contents of a text file into an array.
My array initialization looks like: char array[max_entries][PATH_MAX] = {NULL}
The reason I want to pass it by reference is that I want my function to return two values essentially. One a specific char* and the other an array like I initialized. My function proto type looks like:
char* load_meta(char* list[max_entries][PATH_MAX], char* path, int mode);
How I'm trying to call the function:
someChar = load_meta(&array, path_name, 1);
Within the function I try to edit the array by deferenceing it once, like this:
i tring to write a employee payroll code with functions and read data from the txt. file and also bubble sort that sorts and displays starting from employees last name and calculations.
//txt file// Hours Pay rate empID first name last name 40.0 10.00 A1234 Jane Adams 50.0 10.00 L8765 Mary Lincoln 25.5 10.85 W7654 Martha Washington 52.0 15.75 A9876 John Adams 45.0 25.00 W1235 George Washington 40.25 55.00 L9087 Abraham Lincoln 30.0 9.75 T9876 William Tell 42.5 12.50 M7654 Missy Muffett 30.0 10.00 P8765 Peter Piper
Code: payroll.cpp: In function "int bubbleSort()": payroll.cpp:52:8: error: "lastpos" was not declared in this scope payroll.cpp:52:18: error: "numemp" was not declared in this scope payroll.cpp:56:10: error: "swapmade" was not declared in this scope payroll.cpp:57:16: error: "i" was not declared in this scope
I have been given an assignment to make a code to read some text nd display all the words nd the number of times they appear in another file or as output without displaying the repeating words. I made the code but its not giving any output.
The Objective Of This Program Is To Create A File To Write Text And Read Back The File Content. To Do That I Have Made Two Function writeFile() To Write And readFile() To Read.The readFile() function works just fine but writeFile() doesn't.
How writeFile() function Works? when writeFile() function Execute It Takes Characters User Type And When Hit Enter(ASC|| 10) It Ask "More?(Y/N)" That Means What User Want? Want To Go Next Line Or End Input?
If "Y" Than Inputs Are Taken From Next Line Else Input Ends.
But The Problem Is When Program Encounters ch==10 It Shows "More?(Y/N)" And Takes Input In cmd variable.If cmd=='Y' I Mean More From Next Line Than It Should Execute Scanf Again To Take ch I Mean User Input.But Its Not!!! Its Always Showing "More?(Y/N)" Again And Again Like A Loop.
Code: #include <stdio.h> void writeFile(void); void readFile(void); int main(){
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:
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.
My best guess is that there is a buffer overflow elsewhere and it just so happens that the memory allocated for filepath happened to be there to catch it up until now, but I can't work out where it might be happening. With the declaration commented out, the read_config() function gets as far as reading the "padding" variable before it crashes. Yet when the declaration is there, then all the variabled are read correctly and everything seems to work.
I have a .txt file which I want to read from and then write a new text file, this time with sorted lines. It is easy to sort one value, but what about sorting entire lines based on one value?
I want to sort the lines based on the FIRST value.
My text file is in the correct folder and the name of my text file is the same as the code. I dont get no errors i dont see why i cant get my text to be read.
my code.
#include "stdafx.h" #include <iostream> #include <string> #include <fstream> using namespace std; void main(); int menu(); double currentBalance(double balance);
I'm a beginner at programming and I'm not sure how to read in information from a text file. What I want to do is take a text file which contains around 20 rows and 3 columns of numbers, and put these into an array which can then be used for performing calculations. How do I do this? Would I need to declare the size of the array beforehand? When accessing my file, do I include the full address?
The relevant part is lines 29-33:
Code: #include <stdio.h> #include <stdlib.h> #include <math.h> /* this is a simpllified code using BEM equations */ main()
how to read and display the content of a text file in my console application using C++. The file contains 25 lines and 3 columns. The first column is "Rank" (numerical values from 1 to 25) the second column is "Name" (25 teams name) and the third column "value" has the amount of point each team is worth. Looking for code for reading and displaying all this information ....
I am making a script to read the latest from a text file. It picks up the line by numbytes in fseek, but the data line may vary and numbytes not be accurate, how can I fix this?
And another problem is that the line has, date, time, value, separated by space, how to read that line and put these 3 information in variable?
#include <stdio.h> #include <conio.h> int main() { FILE *arq; char Line[100]; char *result; int tam, i; // Opens a file for READING TEXT arq = fopen("temp.txt", "rt");
I'm trying to make a program that will read in names and grades from a text file and print them in the console. However whenever I try to use the OpenFile.get function I get an error saying that there is "no instance of overloaded function"
getting this error resolved before I can.
my code so far (I know it's missing a lot, but that's not what I'm worried about right now.)
I have a piece of code that should operate on test.u that looks like this:
switch (j) { case 0: f = test.u + ...; break; case 1: f = X - test.u; break; case 2: f = test.u + 2; break; }
Now I would like to use a similar piece of code but for the other members, test.v and test.w. In principle I could copy the piece of code above and just replace test.u by test.v or test.w. Since it is the same code for all members, I would like to avoid this (copying many times the same piece of code) and replace it by a call to function. The question is, how to pass the name of the struct member I am considering to the function ? How can I tell the function, operates on member .u or .v ? Would it be possible to have a generic piece of code
insert Code: function (member y,...) switch (j) { case 0: f = test.y + ...; break; case 1: f = X - test.y; break; case 2: f = test.y + 2; break; }
where the function could be called with function(u) or function(w) and would replace automatically .y by .u or .w ?
How can I read text from a webpage asynchronously,from within C++. After you first connect to the internet using usual means, you enter the string
e.g. "[URL] ...." and the C++ program reads the information: "<title>BBC Website</title><body>This is the BBC website...." from the internet.
Here I want to connect to website every 60 minutes and fetch only first 100 lines of the run.txt file as mentioned above. How can I do this using C++ and asynchronous winsock ???
Code: #define WIN_OS #define _DEBUG_PRINT(X) /* X */
I have been given an assignment that has to do with permutations. I am suppose to read a text file that contains the permutation rules and the text to be "permutated", and then output the rules and the new text into an output file.
So far, I've gotten this:
Code: # include <stdio.h> void printArray(FILE* file, char* array, int maxSize) { int i; for (i = 0; i<maxSize; i++) fprintf(file, "%c", *(array + i));
[Code] ....
Here is what the input file looks like:
Code: 0 1 2 3 4 5 6 7 8 9 4 5 6 0 9 7 8 1 2 3
Moderation in temper, is always a virtue; but moderation in principle, is a species of vice.
Here is what the output file is suppose to look like:
Code: 0 1 2 3 4 5 6 7 8 9 4 5 6 0 9 7 8 1 2 3
ratMnioodetem rpein al,ywa isvirsetu a t m;eod buon r inaticipp,lerina s cpeis of icvies - Temho. -ainaPes
The first two lines are the permutation rules. Currently I have figured out how to read the file into an array and then print it back out into a text.
What I want to do is figure out how to read only the first two line of the input file and store that as a permutation rules, and then continue reading the rest of the input file and store that separately as the text to be "permutated". And then eventually figure out how to apply the permutation to the text.
How to create text file in C programming. And after some changing in that text file off the running code of C, I want to read that modified text file back in C running code. e.g
Created file may have number 1, after changing this value to 2 let say, than I want to read that 2 value which is in text file.
In a program, I have a text file (called MyDictionary.txt) which has thousands of words in alphabetical order. I need to make a C program that reads in this text file and then makes an array called char Words[# of total words in the text file][length of longest word].
i have prepared a code the read from txt file with values such integers and strings. but the code i have prepared reads only 1 line. how can i make the code to read multiple records from txt file.
I'm making a Jeopardy game and when I read text from a file into arrays to set the categories, questions and answers a couple of the strings are not terminating and they are printing that junk box thing at the end.
When I use the debugger and print the problem strings they are showing up as "Thanksgiving21" or "Calvin Klein21" but all the other strings aren't having that problem.
Then for example I will change "line[strlen(line)-1] = '';" to "line[strlen(line)] = '';" and other strings will have that problem but not those stated ones. I'm using line[strlen(line) - 1] = '' to get rid of the newline fgets appends on the end of the strings.
I have to write a function that reads letters one at a time from a text file, such as (aBCdefG) using fgetc(). However, each character needs to be inserted into the array in ascending ASCII order, so it should come out as (BCGadef). I wanted to use an insertion sort, however, that would require me to pass the whole array. My professor wants me to sort the letters as they are read, though, and not as a whole array.Can you even do that?
I have the following code. Everything compiles but when it runs the sums are not correct. I need to calculate the sums for all the odd integers, the even integers, and all the integers.
my infile was provided with the following integers. I am not supposed to assume the infile has 20 integers.
Also, I wanted to the average to calculate with two decimal place precision and that is also incorrect??? setprecision(2) I thought would work???
