[c] Forum Topics

if(strncmp(&line[j],"MEMBERED",8)==0)

I am a programming student and I've realized lately that while I understand many of the concepts I'm being taught, I still, after several programming classes, tend to have trouble with multi dimensional arrays. Does anyone know of a good tutorial devoted to this? I realize I can do a …

The hash table stores phone numbers and names, uses the names as the keys. The problem I have is when I use the terminal window to enter the names and numbers. The strange problem that occurs then is that all the names get the same phone number. But when i …

Its an exam question that wants to modify code so that the following output is generated 1 2 3 4 5 2 3 4 5 3 4 5 4 5 5 **This was the original code** #include<stdio.h> void main() { int i,j; for(i=1;i<5;i++) { for(j=1;j<=5;j++) { printf("%d",i); } printf("\n"); } …

hi.. i am trying want to solve this Write a complete program that reads 11 integers from a file called ‘file.txt’ and stores them in an array. Your program should then remove the duplicated numbers, find and print the sum of all the even numbers in the array as well …

Hi, how do i output a list,1-5 of the following factorial? #include <stdio.h> #include <stdlib.h> #define fact 5 int main(void) { int i,result=1; for (i=fact;i>=1;i--) result*=i; printf("factorial of (%d) = %d\n", fact, result); return(EXIT_SUCCESS); }

I made a program, hangman. And I am trying to complete it. I have succesfully been able to compare the input letter by all the characters of the word to be guessed (which is saved in an char array) and display it. But now, I can not figure out how …

I got this simple code: #include "stdio.h" #include "stdlib.h" #include "windows.h" int main(int argc, CHAR* argv[]) { HANDLE hFile = NULL; HANDLE hMapFile = NULL; LPBYTE fileView; hFile = CreateFile(argv[1],GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); if(hFile == INVALID_HANDLE_VALUE) { printf("CreateFile function failed\n"); goto clean; } ***** hMapFile = (LPBYTE)CreateFileMapping(hFile,NULL,PAGE_READONLY,0,256,NULL);***** if(hMapFile == NULL) { printf("CreateFileMapping function …

I am getting garbage even I am delete an char pointer array.. Please help me to prevent this garbage... Here you can find my code. Link :http://www.upload.pk/files/XKGioMek1335637669.html

Hi Everyone!! I'm facing a few problems in storing the structutres or records in a file. I'm trying to store the usernames and passwords(Taken as example), of a person in a single record as structure variable **w[99].** and **i=0 to i<=100 *** When the program Executes for the first time, …

Hello Everbody, I have 2 arrays called Array 1 Array 2 Stuid stuname stuid Bookname 1 Albie 1 OOPS 2 Morkel 2 CNA 3 Jmes 1 ComputerNw 3 OOPs 2 CNA Code: #include<stdio.h> main() { // char array1[2][1],array2[5][1]; char array1[100][100]={'ID1','srini','ID2','Albie','ID3','Kaasi'}; char array2[50][100]={'ID1','OOPS','ID2','STS','ID1','STS','ID1','CTC','ID3','MAT','ID2','MAT'}; printf("We're Begining the Comaprison Here !!\n\n"); search(array1[][],array2[][]); } …

Dear guys, I get stuck in a basic problem that is often overlooked. Like this , I can write code in such way. 1.#include"stdio.h" 2.void main#void#{ 3. double x; 4. scanf#"%f",&x#; 5. printf#"%f",x#; 6. } When I input a number like 3.0 ,however the result is a minus number. I …

Hello do you know whats wrong with this code? #include <stdio.h> #include <allegro5\allegro5.h> #include <allegro5\allegro_primitives.h> #include <allegro5\allegro_image.h> int main() { al_init(); FILE* pFile; return 0; } If I compile it, it fails and output is: main.c 1>c:\users\beda\documents\visual studio 2010\projects\c allegro\c allegro\main.c(9): error C2143: syntax error : missing ';' before 'type' …

Hello everyone... I am new to the programmers world... Can anyone tell me if i can find a version of C or C++ for symbian? s60 v3? I want to write C/C++ programs but from my mobile phone... I have been searching the internet for the last 4 hours and …

I need help in running a program that makes a SLR Parser Table. Here is the code : Code to find first and follow: saved as SLR.h #include<stdio.h> #include<ctype.h> #include<conio.h> #include<stdlib.h> #include<string.h> #include<iostream.h> #define epsilon '^' // since I didn't know how to type epsilon symbol temporily I am using …

How to make this program #include <stdio.h> #include <conio.h> #include <math.h> int main(){ clrscr(); for(i=0;i<10;i++) for(j=0;j<10;j++) printf("a[%d][%d] = %d \n",i,j,a[i][j]); printf("cu pointer\n"); for(i=0;i<10;i++) for(j=0;j<10;j++) printf("a[%d][%d] = %d \n",i,j,*(p+i)); getch(); } int a[4][4],b4[3][3],b1[3][3],b2[3][3],b3[3][3],n,c1,c2,c3,c4,i,j; printf("\nIntroduceti elementele Matricei cu 4 linii si 4 coloane: \n"); int *mat; n=4; for (i=0; i<n; i++){ for …

int i = 0; int A[5]; cin >> i; A[4] = i; while(A[4] < 10) A[4] ++; cout << A[4];

Hello! I'm having a slight problem with a event... What I'm basically trying to do is: Activate a on button event, that fetches source code, then posts it within the edit window with "SetWindowText(hTextBox, get_source("website", "path"));". Sadly, this didn't quite work out that well, as I recieve a Run- Time …

I am a newbie in programming and I'm using visual studio. i typed in this #include <stdio.h> #include <conio.h> #define PI 3.1416 void main(void) { float radius, circumference, area; radius = 2.5; circumference = 2 * PI * radius; area = PI * radius * radius; printf("radius of a circle …

If I have to do the basic tree with these declarations typedef struct item { char petname[20]; char petkind[20]; } Item; typedef struct node { Item item; struct node * left; /* pointer to right branch */ struct node * right; /* pointer to left branch */ } Node; typedef …

how to copy pointer to pointer. char *name1; //store the value of DAVE char *name2; if name2 was a array i would have done. strcpy(name2,name1); but i dont know how to copy pointer into pointer. i was thinking some thing like this. name2 = name1? also do i need to …

trying to build linked list that sort it selft. but this code below doesnt work. this part of code should insert a node in order. for ex. if i have a linked list of age 1 3 4 5. and if i insert(3) than result should be 1 2 3 …

hi everyone I'm working currently with linked list , and there's a problem with my code , the link is writing the same place every time (it replaces the previous values with the new ones without inserting a new one ) can anyone help ? Thanks in advance #include<stdio.h> #include<unistd.h> …

Hey, this is one of the exam review questions, and I'm wondering how I would return 1 or 0 for bad input (i.e. cant divide by input 0) using return 0 and 1 if the function doesn't accept returns, i.e. void function (int variable) //cant have return statement. Here is …

for (y = 1; y < num1 + 1; y++) { for(x = 1; x < num2 + 1; x++) { if (y >= 1 && y <= 4 && x >= 1 ) { printf ("%d x %d = %d", y, x, y*x); printf (" || "); } else …

Hello everyone! I tried a lot to understand the spacing procedure in pascal triangle.. but it all went to vein!! Does anyone knows about this spacing??? Why are we using this loop: for(x=40-3*y;x>0;--x) printf(" "); need help ASAP!!

I just want to know the exact difference between intialising and assigning a variable. Is it possible to initialise a variable multiple times in C prog or is it just initialise once n assign all the other time...can somebody help me out please.

I am fairly new at C++ and Im having a lot of trouble understanding how to do it. This is part of a homework assignment due next week and I have no idea how to even start it (much less finish coding it). Can anyone out there help? ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Create …

I am trying to learn how to write a merge sort function, but I have only gotten so far with the book I am using now: [code] template <class T> void mergeSort(vector<T>& s) { mergeHelper(s.begin(), 0, s.size()); } template <class Itr> void mergeHelper(Itr start, unsigned int low, unsigned int high) …

I am trying to parallelize the [Guibas Stolfi delaunay triangulation](http://goanna.cs.rmit.edu.au/~gl/research/comp_geom/delaunay/delaunay.html) using openmp. There are two things to parallelize here- the mergesort(),which i did and the divide() where I am stuck. I have tried all possible approaches but in vain. The approach followed(divide n conquer) in divide() is same as that …

Hi every one, #include <stdio.h> #include <conio.h> #define SIZE 4 int main(){ char Menu[SIZE] = {'A','B','C','D'}; int i; for(i=0; i<(SIZE); i++){ // print the array elements printf("\t%c",Menu[i]); } getch(); } I want to swap the elements of the array for e.g. if I pass A and D or Menu[0], Menu[3], …

I was just experiminting with the following C code and i noticed something interesting.. The first loop runs fine, but from the second loop the variable r1 occupies the kernel address space(ffffffffe) and instead of randomly changing as it is supposed to, all the consecutive loops show r1 as occupying …

I want to start writing a os, but doesnt really know how. I need a simple boot and kernel to demonstrate how its done. nothing fancy just simple one that will boot and load a kernal. if it isnt to much work maby make it that is can hold files, …

I'm trying my hand at OpenCV and have run into a problem that Dr. Google hasn't been able to help me out with. According to O'Reilly, the following code should play an AVI file in a window the program creates. [CODE] #include "highgui.h" #include <stdio.h> int main( int argc, char** …

i need a topic for thesis proposal. please suggest some ideas. i'm thinking of natural language and AI but .. I'm not sure of it. I want something that can be very helpful and significant. Actually I want something to help the government, but I don't know what they need, …

*i am trying to copy the value of ar2[10] //in main. has the value 1,2,3,4,5 in ar[10] //(in struct node). empty array so to copy the value iam not sure if i could use a strcpy for ex, strcpy(head->ar, ar2); //here is my code struct node { int ar[10]; //empty …

Okay, I know there is a prior article about this, but I used { } with my if statements, and it's still not working... is it because I have multiple if statements consecutively after another? #include <stdio.h> #include <stdlib.h> #include <time.h> int i, n,t, s[51],p=1,a,b,c; int main() { srand(1); for(i=0;i<=51;i++) …

Hi guys, I'm programming a firewall and so far I have complete the driver coding, but I don't know **How to send IRPs from user applicatio to the dirver?** I have used `IoCreateSymbolicLink` to establish the connection between the usermode and kernelmode but I don't know how to send information …

Hello! I want to ask you guys if anyone can help me correct my current program to read graph from a file instead of adding manual matrix in program. Example graph: graph.txt 8 1 2 3 1 3 6 1 8 1 2 3 2 2 8 2 3 4 …

Is there any standard function in gcc that is equivalent to getch() so that I can read the input without hitting enter key?

I wrote this program... Just gave a try!! i got a problem with searching a string in file.. the **"checkp"** used in the login function, returns a value **"1"**, whereas it must return a value **"0"** Hence my program fails... what i felt is, the file i'm opening, **"web_reg.txt"**, in …

a class of 20 students. The information of each student contains ID, Name, Sex,exam Scores (3 quizzes per semester), mid-term score, final score, and total score #include<stdio.h> #include<conio.h> void main() { struct student { int id; char name[20]; char sex; int mid; int final; int total=mid+final }; int i struct …

#include<stdio.h> #include<conio.h> void main() { struct student { int id; char name[20]; char sex; int mid; int final; int total=mid+final }; int i struct student b [19]; for(i=0;i<20;i++); { printf("student %d enter your details\n\n",i+1); printf("enter your id"); scanf("%d",&b.id); printf("enter your name\n"); fflush(stdin); scanf("%s",&b.name); printf("enter your sex\n"); fflush(stdin); scanf("%c",&b.sex"); printf("enter mid …

iam trying to store all the data in to a struct so i can change it later. //this data is in file abc 1 11 22 def 2 33 ghi 0 22 11 33 asd 2 i was planing on making a array of structs. so 1st line will have …

trying to copy pointer in array. lets say *pointer has the value "COMPUTER". and i want to store in array[o]; note: i want to use strcat to do this and i do not want to do some thing like "array[0]" char test[10]; char *point; //has the value "COMPUTER" for(int i …

include<stdio.h> struct address{ char city[20],country[20],state[20]; }; struct customer{ int acount; char name[20]; float bal; struct address add; }; void display(struct customer * ,int); void main() { int i,size; printf("enter the number of customers"); scanf("%d",&size); struct customer cus[size]; struct customer * c[size]; for(i=0;i<size;i++) { printf("!"); scanf("%s",&cus[i].name); printf("!"); scanf("%d",&cus[i].acount); printf("!"); scanf("%f",&cus[i].bal); printf("!"); …

Hi! I'm currently making a HTTP protocol bot, it works somewhat fine with a fixed char array, but once there's a website that exeeds 8k, then it cuts off. If it's less, I get weird nonsenscial symbols... Is there a way to know the length before assiging the data to …

i have this c++ code and i wondered how ot would be in c #include <vector> // for vector #include <sstream> // for stringstream #include <iostream> #include <string> using namespace std; int main() { stringstream ss; string input, temp; vector<string> comand; cout << ">: "; getline(cin, input); ss << input; …

I am trying to use the glib HashTable implementation for my code and facing some issues in memory allocations. The code I've written is: GHashTable *g_hash_table; g_hash_table = g_hash_table_new (g_direct_hash, g_direct_equal); gint *port, *src_value, *value; guint32 *dst_key, *key; . . . while(1) { key = g_malloc (sizeof *key); dst_key = …

Hello, I am having trouble with my code. it does not seem to be comparing the two hands correctly I would really appreciate it if someone could take a look at it and tell me where i am going wrong. #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #define TOTAL_CARD_DECK …