19,876 Topics
 | |
 | Hello all, Basically I'm trying to code a program that makes use of recursion to reverse an input integer, e.g. 123 will result in a display of 321. I've coded the program this far, but it just displays the last digit only. Where have I gone wrong? I.e. Instead of … |
| | I am wondering how to read a file in c... this requires some more background information before you give me something useless What I have so far: [CODE]#include <stdio.h> int main(void) { FILE *fpr,*fpw; char C; int I; fpr = fopen("cwM.dat","r"); fpw = fopen("echocwM.dat","w"); while (C != EOF) { fscanf(fpr,"%c",&C); …  |
| | I have here a problem... i have a notepad containing values such as: tom,a1001,1 charles,1002,2 I used getline() and used the delimiter comma to separate them and store it in line variable.. my problem is that how can i store the delimited strings from line variable to any different variables.. … |
| | I need helping trying to retrieve data held in a [CODE]std::list<boost::shared_ptr<boost::any>>[/CODE] I am working on a Singleton Controller class with a private [B]std::list[/B]. Client class(es) will be able to [B]Add/Remove/Edit[/B] concrete class objects to be used by the program through this Controller class. The reason for using [B]boost::shared_ptr[/B] is because … |
| | in multidimensional array what is the row and coloumn size.for example in 2d array a[2][2] this has 2 rows and 2coloumns .but what does this have a[2][3][4]????please explain me with practical example  |
| | Greetings all. I need help to create a c program for computation of moving average.  |
| | Given an array A of length N, my task is to find the element which repeats in A maximum number of times as well as the corresponding count. In case of ties,I choose the smaller element first. Input First line of input contains an integer T, denoting the number of … |
| | Hi folks, I did a program to find a number at a lower bound position and upper bound position. For example, this is my array values 1 1 2 3 5 5 5 5 7 8 9 10 if i search lower position for 5 , it will return 4 … |
| | I post this thread in shell scripting too I want to search the user input in file (by lines) but not all then with this line search on another file ( with the specific line) and show to the user. Example: file1.txt ======= a aa aaa aab aac file2.txt (corresponding … |
| | Hello, i have made this question again, but is something i really want to learn :/ and never i get an complet answer I know enought good C#/Java Windows programming, i also know C/C++ Console programming but i think is time to learn/play with C/C++ Windows Appis ... How i … |
| | Hi There i am developing a little Game Center (console application) for school. The Tic Tac Toe (singelplayer and Multiplayer) is already done. Now i want to develop a snake. When i test the snake, i get a force close. When i use a debugger, i have a SIGSEGV Error. … |
| | Hello I have been at this for a few days, and I have not figured it out but feel as if i am very close. I must create A program that takes a users input, then tells the user if that number is prime or composite, if composite it must … |
| | I am implementing a program where I want to store only certain part of the input string. for eg if the input string is 0123456789 I want to discard 4 AND 7 and store 01235689 Please my program requires an input string of 10000 characters so running time is very …  |
| | How do I rewrite eq->pt_tree[0][0]=2; to user pointer subscript? [CODE]#include <stdio.h> #include <stdlib.h> /////////////////////////////// struct eq_values{ int * pt_tree[2]; }; //////////////////////////////// void main (){ struct eq_values input, *eq; int i =2; eq = &input; while(i--){ eq->pt_tree[i] = (int *) malloc(3 * sizeof (int)); if (!eq->pt_tree[i]){ printf("No\n"); exit(0); } } eq->pt_tree[0][0]=2; …  |
| | I have the following struct deceleration and I would like to decrement eq->pt_tree[c][r], the row portion of pt_tree[c][r] using pointer subscript. How can I do this? [CODE]struct eq_values{ int * pt_tree[2]; }; eq->pt_tree[i] = (int *) malloc(12 * sizeof (int)); [/CODE] I think it will look like the following, but … |
| | I have to write a program that prompts the user to select (but not disclose) a number between 0 and 31 and then asks exactly five questions to determine the number the user has selected. Each of the five questions is posed by presenting a group of sixteen numbers, asking … |
| | I am trying to implement a chat program using epoll on the server side. However, the program gets stuck at epoll_wait(). How should I create an asynchronous chat program? [CODE] #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <sys/socket.h> #include <netinet/in.h> #include <sys/epoll.h> #include <fcntl.h> #include <netdb.h> #include <unistd.h> … |
| | Hi , what is the behaviour of below pseudo code. [CODE] pipe(fd) if(fork()){ read(fd[0]); } else { write(fd[1]); write(fd[1]); } [/CODE] I understand how system calls work , but could not understand the behaviour when used differently. secondly if a process uses while(1); in side its block, will the entire … |
| | I'm working on a program that lists a numbers prime factors. I've finished the bulk of the work and all I have left is the first print where it says the number is prime or composite. I know the way I'm going at it is wrong because it wont work … |
| | Hey, I'm having a bit of trouble with progress bars and background workers and want to try and solve this with the simplest solution What I am doing is reading the contents of a specific directory, I am then displaying in a list box all the folder names so that … |
 | can any one give any idea which compiler i will use which work in docs.i dont want to use microsoft visual c++ |
| | i am using 'atof' function to convert string into double but it shows the correct value if the string length is 17(max). is ther any function if string length is more than 17? |
| | I've tried to make a [URL="http://en.wikipedia.org/wiki/Deque"]DEQUE[/URL] program. My book on data structures (Seymour Lipschutz) doesn't have an algorithm on DEQUES. Neither does [URL="http://www.itl.nist.gov/div897/sqg/dads/HTML/deque.html"]DADS[/URL] give a good description. All I heard was that it could be implemented better with two lists (one forward and one backward) & there are 2 types … |
| | Hi everyone, I'm trying to figure out how I can write information stored in a variable to a file (right now I have a text file, but that's probably not the best way to do it) and then be able to recall that information back to the variable after I … |
| | |
| | im trying to make my own kernel.... my kernel is loaded through grub... i tried creating the gdt and idt for myself... i dont know how to test the gdt and as far as the idt is concerned it failed to capture the division by zero error ... source code … |
 | See I created a program that accepts three values from the user to be arranged as a linked list(ascending order). After it asks a number, it displays the content of the list. The output is like this: [CODE]Enter number: 6 List value: 6 Enter number: 4 List value: 4 6 … |
| | Hi folks, I'm having a doubt. I write a letter in notepad and i saved it as 'letter.txt'. Then i realized that i forgot to say one matter in that letter. So i opened 'letter.txt' using any text editor such as notepad, wordpad or something. Now i inserted the letters … |
| | good day to all... does anyone here have a basic tutorial on how to program using C for zigbee...? its just that i have a very important project task in my work which should be accomplished for three months:'( ...i do have basic...i mean enough knowledge programming in C but … |
| | Alright so basically i need to create a simple maths game in C. Involving addition subtraction and multiplication of random numbers. But i also need to add a timer to that. So lets say you are given 10 seconds to answer the question and every correct answer adds you 10 … |
| | #include <stdio.h> int main() { int num, i = 1; printf("\n Enter any Number:"); scanf("%d", &num); printf("Multiplication table of %d: \n", num); while (i <= 10) { printf("\n %d x %d = %d", num, i, num * i); i++; } return 0; } Hi.. Can someone please patiently explain me … |
| | Am not looking for a specific deleted file. Let me put it another way, and maybe someone can help me in another way.... Am looking for lost info. Files lopng deleted etc. But since this machine has bearely been used, it's posssible the data is sitting in an a now …  |
| | How can i send a file at my e-mail address? I want to write it in my C program. Is there any simple way to do that? I Use Dev C++ compiler. I am not using C# or VB. Thanks in advance for answering. |
| | hi, my name is vic...i got one problem cannot fix....output for the number of times each of the tasks has been invoked...i run 3 times each of the tasks but the output always is this program has run 1 times..... #include<stdio.h> #include<stdlib.h> void doTaskA(){ printf("Start of Task A\n\n"); int input_1, … |
| | Looking for an equivalent container class that matches to C#'s Arraylist collections class. Is there anything that comes close to a container that can provide index based enumeration as well as hold multiple data types. I am trying to create an vector that can hold multiple data types. For example: … |
| | hi all, i need to know how to create a thread using pthread_create()? i have never used pthread in c. am i supposed to used function pointer? how to pass arguments in thread function? i need to know everything about pthread_create(). and yes i am using turbo c++ compiler and … |
| | I am trying to load the numbers to a text file based on user option when he or she types in number through my program. I'm just not sure how to go about it I have not yet learned this. I know I need to use #include <fstream>  |
| | Need help with implementing a pure abstract class via inheritance, using namespace to wrap all my classes to avoid conflict with others. I have been able to build and run the code successfully if I remove namespace wrapper from my abstract class and all classes that inherit from my pure … |
| | I'm trying to preform a loop, using a combination of a if/else and while loops. I set a boolean "repeat1" to true, to enter the while loop. Then when I went the user to pick to repeat or move on, they enter a Y or N, if Y, keep repeat1=true, … |
 | Hey guys and gals not quite sure if this is where I should put this, I'm running into a really weird problem that I have yet to encounter...atleast until now. I am using Microsoft Visual C++ and playing with a little toy project using windows forms. Anyways I have an … |
| | if would like to print the size of data type entered by user. how can i do so (without using case and if) is it possible to store the data type in a string and print the size of data type in that string??? |
| | Hi everybody, I am learning C at the University, and I want to study by myself to avoid difficulties there, I am doing some exercises from a pdf that I got, and it asks me to write a program to invert a string using only what was explained in the … |
| | Hi every1! Thats my code that used to work before I've added some attributes to my items. [CODE]void manager::EditStockItem() { ListStock(); { string z; bool found; cout<< endl<<"<===================================================>"<<endl<<endl; cout << "Enter ID of the Stock Item you want to edit" << endl<<endl; cin>>z; found = false; vector <Item*>::iterator iter = … |
| | Hi guys ! I've made a program that marks a seat taken X in an airplane .. So, here's what I've done.. it runs , but when i try to input other seat code, i.e., 1G, the no.2 in the grid becomes 88.. and I don't know how did that … |
| | cant we compare two for inequality? i mean if i have a char array 'a' and i want to know the number of digits in an array which is not '4' or not '7' i.e if my array has value 4567778 the output should be 3 as there are three …  |
| | hi this is my first thread i am learning c++. it is my first language that i am learning. it seems difficult because it is my first programming language. i follow the book tittle "PROGRAMMING WITH C++" by "D RAVICHANDRAN" . please suggest me how i learn language very easily  |
| | i'm studying file processing. when i execute the second code that Reading Data from a Sequential Access File something goes wrong with it. i couldn't find what is wrong. is there anyone who can help me? [CODE] /*creating a sequential file*/ #include<stdio.h> int main() { int account; char name [30]; … |
| | When i try to input this data: 11 jack 90 22 mike 99 the result will be on the attachment. [CODE]/*Create a sequential file*/ /*"w" is a made for creating a file for writing*/ /*if the file already exists, it will discard the current contents*/ /*%s stands for string is … |
| | Write a program to accomplish the following tasks: 1. Generate arbitrary number of random integer numbers between [0-100] 2. Save or load the numbers from/to a text file based on user option 3. Search the generated list for an arbitrary number entered by a user 4. Use Linear and Binary … |
| |
The End.