19,876 Topics
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| | A lot of people tell me that my code results in Memory Leaks. Since, I am still in an academic environment, it has not had any drastic result on any projects, but I still want to correct it. I have posted below some C code, please go through the coding … |
| | I am working on a project with my friend where we have to update existing version of a game which uses SDL 1.2 to use SDL 2.0 header files and functions. I would like to know what is the standard procedure we follow while updating already existing source code to …  |
| | Alright so my task was to make a program in C++ that when entering a year would output the date easter landed on and this is what we were given a=year MOD 19 b=year/100 c=year MOD 100 d=b/4 e=b MOD 4 f=(b+8)/25 g=(b-f+1)/3 h=(19a+b-d-g+15) MOD 30 i=c/4 k=c MOD 4 …  |
| | **I am trying to write a program that will pring a list of random numbers from 1-100 and store them in an array. and then bubblesort them into ascending order. This is what i have so far but it is giving me a whole different set of ascending numbers after … |
| | We just read about Functions and Arrays, and I'm still a little confused on those as well as passing a function by reference and calling it. I've been trying to get help from my online teacher, but he's not entirely helpful on the things that I don't completely understand, and …  |
| | Hello everyone, This is my first program in C and I have ran into weird issue. I am implementing a simple server & client program in C. From my main() in client I call a send_message() function which I believe binds with server and sends the message to the server …  |
| | Hi everyone, I'm working on an assignment that takes a record of student ID, student last and first name and their score, using array of pointers, qsort to sort in alphabetical order, typedef structs, malloc and calloc, etc. and the program prompts those records and it is stored in dynamic … |
| | Now I'm learning basics of gtk using C. In gtk the declaration of a text box is as follows GtkWidget *gtk_text_new( GtkAdjustment *hadj, GtkAdjustment *vadj ); Here can anyone tell me what is the meaning of hadj and vadj? I mean what type of value we should pass? |
| | hi eveyone i have to big problem so this problem have two datatable first table like column1----column2----column3 row11-----row21-----row31 row12-----row22-----row32 i want to inset to other table column1---row11 column1---row12 column2---row21 column2---row22 column3---row31 column3---row32 my code: DataTable orjiTable = new DataTable(); DataTable gecicitable = new DataTable(); adptr.Fill(gecicitable); // orjiTable.Columns.Add(gecicitable.Columns[0].ColumnName.ToString()); // MessageBox.Show(gecicitable.Columns[0].ColumnName.ToString()); foreach …  |
| | FILE *finp1 = file.txt -------------- web: add $1,$2,$3 sub $4,$5,$6 end: .word 5 ------------------ for some reason i can not go in my 2nd if statment. i think bc i am not using strtok right ------------------------------------------------code---------------- while(fgets(line, 20, finp1) != NULL) //works { tptr = strtok(line, ":"); //works if(tptr != …  |
| | Hi, I have added sleep with random timings and printed the values. I am actually expecting the "Blocked in Child" OR "Blocked in Parent" out put when other process sleeps. But it it never printing the statement.(when the process is going to sleep the semaphore is not cleared so i … |
| | lets say i there is a file with 2 lines in it. and we going to read from it. only thing we dont how how many spaces there are. for ex " -hello ", " -hello", "-hello", " -hello " file.txt ----------- -hello -hello 29 ----------- i want to skip … |
| | Hi, I was working with Luminary lm3s811 board with Stellaris Keil. Initially it worked well..sometime later i tried to run program by changing crystal value which is normally taken as 6Mhz.. When i changed it to 6Mhz/2..it worked..but when i went for 6Mhz/12..something went wrong.. Now i can not program … |
| | for some reason it always return 1; lets say char line will have a empty line or not empty line. int main(void) { char line[20]; //user may enter some word or enter nothing in LINE if(empty_line(line) != 0) { //... } } int empty_line(char line[]) { for(i = 0; i … |
| | Background Due to a decrease in advertising profit, your favorite (and previously free) social networking site has decided to charge a monthly fee to each member. Frustrated, you set out to make your own social networking site, VisageTome. For now, you will need to make a class to store each … |
| | Hey all, Im working on a number guessing game where a user has 10 tries to a guess a number. The program supposed to display user guesses and then the main menu after the game has finished. Im running into a couple of problems. The first one being that for … |
 | Hi, I am making an image editing program with C and it will come with OpenCV library files. The problem is the program should be accessible from many different operating systems such as Windows, MacOS, IOS, Android - the point is that we want to avoid re-write same code in … |
| | C programming in IOS? Hi, I am implementing an image editing program in C which should work both in Windows, IOS (iDevices). Ths point is that we do not want to re-write same code in Object-C or Xcode. Let's say that we have a C program that is just resizing … |
| | I am writing a program in C to build linked lists from scratch. However, I am getting hung-up on trying to build a link list that will automatically sort itself. By this, I mean that the nodes will automatically be placed in the correct location. My current code is putting … |
| | I am trying to read a file from an offset till end of file: int i,sizeb=210; char *buffer; //[1024]; FILE *f; f = fopen("myfile", "rb"); printf("Reading file.\n"); fseek(f, sizeb, SEEK_SET); long s = ftell(f); //rewind(f); fread(buffer, s, 1, f); fclose(f); But I never get the right result. Also when I … |
| | Hello, I am looking for a code to ask the user to input a string int a function. And explication on what does what. I'll be taking a computer science class next year and I try to do some understand some basics. Thank You for your time. |
| | int main() { FILE *dp; char name[15]; char sname[15]; int no; char department[10]; char sex[3]; char city[15]; int age; int phone; int num; dp=fopen("veri.dat","r"); if(dp==NULL) { printf("file couldnt opened\n"); return 1; } printf("enter student number:\n"); scanf("%d",&num); while(!feof(dp)) { fscanf(dp,"%d",&no); if(no==num) { printf("%s%s%d%s%s%s%d%d",name,sname,no,department,sex,city,age,phone); } } fclose(dp); system("pause"); return 0; } I … |
| | i want to create array of pointer. "aa" "ab" "ac" i tried many thing but it still give me error. char *table[3] = "aa", "ab", "ac"; or char *table[3]; *table[0] = "aa"; *table[1] = "ab"; *table[2] = "ac"; |
| | My code is this atm: #include <stdlib.h> #include <stdio.h> int main(int argc, char *argv[]){ int a,b,c; int swap; printf("Enter 3 Numbers (# # #):"); scanf("%d %d %d", &a,&b,&c); //does all its computing, to see which one is biggest. return EXIT_SUCCESS; } The result when i run it in eclipse is … |
| | I have the following code that I cannot figure out how to get to work: namespace Project2 { public static class Variables { public static List<string[]> tran1; public static List<string[]> tran2; } } private void Submit_Click(object sender, EventArgs e) { //Find the schedules // Variables var; string[] transaction; transaction = … |
| | Hi there, I currently have a code that will search for a bitmap in a screenshot taken by this program, however, the bitmap exists three times in the screenshot and I want it to click the second time it finds it. Is there any way to do this? A lot … |
| | How can I parse through a large file in a fast and efficient way? |
| | Hi everybody, When I tryed to compile a C program, compiler gave me error, that I haven't see before. Please tell me what does it mean? and what are the possible reasons, this error occure. blade71(20)% gcc lineholder.c -o lineholder Undefined first referenced symbol in file main /tools/gcc/bin/../lib/gcc/sparc-sun-solaris2.8/3.4.2/crt1.o ld: fatal: … |
| | Hi all.. I wrote a program for this: A C program can represent a real polynomial p(x) of degree n as an array of the real coefficients a_0,a_1,…a_n (a_n≠0). 〖p(x)=a_0+a_1 x+a_2 x〗^2+⋯+a_n x^n Write a program that inputs a polynomial of maximum degree 8 and then evaluates the polynomial at … |
| | **Okay i have a problem that i am not able to sort out for couple of days now. I dont know why the code is not doing what it supposed to do. Basically I have written this code for a vending machine. Things i want in a vending machine ------------------------------------ … |
| | Hello, my name is Carol. I'm currently taking an introductory course in C++ and we just learned about functions. I was wondering about the standard accepted format for placing function definitions. For instance, in the following program, should I have defined the power function before the int main function instead … |
 | Is there a difference between keywords and reserved words? Is main() a reserved word?  |
| | Operating System Used:Ubuntu 11.04 Compiler Used: GCC Program related files:[Git Hub Link][1] I'm trying a implement program which will do a job, same as that of CPP (The C preprocessor) when I compile a .c file. In this particular code Copy_file_to_buf function not copying the whole file into the buffer. … |
| | Hi, Does anyone know how to create a delay in C#? I dont like to use Thread.Sleep because it makes the GUI unresponsive. Do you know of any good alternatives? |
| | Hello, I was having some trouble related to a code. I wanted to pass a 2-D array as argument to a function,but I'm getting an error saying 'Expression Syntax in function Main'. I am trying to do it like this :-> void input(int **a[][10],int b,int c) { int i,j; printf("\nEnter … |
| | Hi, Kindly I hope that I can find help regarding reusing of scanf. If the user should enter only integers not floats and the scanf is within a for loop. how can I force the program to continue normally when EOF happens as a result of wrong input? Example: int … |
| | Alright so I am trying to insert nodes into a linked list but also I want them to be sorted right away I think I got most of it except I am struggling when it comes to inserting it to the middle of the table temp -> price = price; … |
| | if( strcmp(z->Rev->x.y,z->x.y) > 0) In this statement i want to swap the pNext and pPrev. How will be the assignment look like? |
| | How to sort alphabetically the link list? Example: pHead B pSecond A pLast C Result: pSecond A pHead B pLast C |
| | I have a problem. If the text is too long in the text file...the program crashes. How to solve it? |
| | If the user inputs 1 the program will automatically create a new node..How? the maximum that I can do is 2..how to add node? Code blocks are created by indenting at least 4 spaces ... and can span multiple lines def *New(def *pHead){ def *temp; temp = malloc(sizeof(def)); pHead->pNext = …  |
| | hi i need help with linked list. so iam trying to mege two linked list together. i got all to working but my meger method dont work. lets say age of List_A = 1, 2, 3; and List_B = 2, 4, 5, 6; after meger method i should get 1,2,2,3,4,5. … |
| | i am using gcc 4.4.3 on ubuntu 10.4 32bit machine. i use 'gdb' to debug my code. Since few days i am seeing that whenever i debug code gdb steps into the c library functions used in the code also(like printf,fgets etc). This shows a long list of calls from … |
| | It doesn't read the first line of the text file. Why? pFile = fopen(user, "r"); if(pFile == NULL) printf("File doesn't exist!\n"); if(pFile != NULL){ while(fgets(line,80,pFile) != NULL) { fgets(search,1000,pFile); printf("%s\n",line); . . . . . |
| | Hello. I have some problems with recieving text from ListBoxItem. My code is below: ListBox list = (ListBox)this.FindName(e.Parameter.ToString()); ListBoxItem item = (ListBoxItem)list.Items.GetItemAt(0); //****here is exception**** T.Text = item.Content.ToString(); list.Items.RemoveAt(0); The exception throws: Unable to cast object of type 'System.String' to type 'System.Windows.Controls.ListBoxItem'. My ListBox contains numbers, but it does not … |
| | I need some help with debugging this problem. I just started learning how to store files at C but I can't seem to check if this code is correct since I can't compile it well. Might anyone help me point out the problems in my code? #include <stdio.h> #include <stdlib.h> … |
| | anyone can help me. all of this overcome the segmentation fault. #include<stdio.h> int bubble(int*,int); void filewrite(); void avgmarks(); void fileprint(); void filesort(); void rollin(); int main(void) { int marks[100],rollno[100],x[100],n,i,j,roll,c,mark,roll1; char name,nam; while(c!=6) { printf("GIVE CHOICE--\n"); printf(" 1 TO ENTER STUDENT INFO.\n"); printf(" 2 TO SEE STUDENT.TXT FILE\n"); printf(" 3 TO … |
| | i'm working on a project in ma college ....i'm in need of accessing the process information ofa system to simulate them ! i don't know how to access the pcb of the os !! please help me |
| | cant get it to play crrectly What is my error? include <stdio.h> void displayBoard(char [3][3]); int main() { int player = 0; int winner = 0; int choice = 0; int row = 0; int column = 0; int line = 0; char board [3][3] = { {' ',' ',' … |
| | Hi All I am programming a Black Jack. I made a procedure to calculate the Score of the Cards. Here is the code: int calculatescore (int* spieler, int i0) //Der Score wird berechnet { int ausgabe; int i1; int i2; for(i1=0; i1!=9; i1++) { if(spieler[i0][i1]!=0) { i2=spieler[i0][i1]%13; if(i2>=10) { ausgabe=ausgabe+10; …  |
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