[c] Forum Topics

hey do u know how to create shortcut for a file using c programming.

Trying to implement a stack using dynamic array. The Problem which i am facing is that if i a pushing 60 or 90 elements then the program is running fine but on inserting say 600 elements while printing the first two elements are showing junk value. Compiled the code using …

I don't normally post in these kinds of forums and prefer to just google my way through problems, but after 3 hours of trying to solve this, I am beat. I am working on a program that uses a linked list and can add/delete/print out nodes (orbs in this program) …

DOSRetCode = GetOpenSaveFile(►TARGET{PROP:Handle},►DOSDialogHeader,DOSTargetVariable,►DOSExtParameter ,DOSFileNameVar,1,►0) Where the black arrow is, thats where i get my error. the error says "No matching prototype available" i also get two more errors where the other black arrows are after the first one, they are, "Invalid variable data parameter type" And the last one is, …

what is the difference between declaration of a variable and definition of symbolic name in c language?

Hello Community i am using Linux (fedora) gcc compiler. Normally i use Java but for the Interprocess communication part we got C. My problem specifically is that when I read from a file with the fread() function and save it in a char buff[somesize] I cant use printf() to display …

I need to create a program for reading two numbers,printing them,confirming them and then summing them up. Here is my attempt [CODE]#include <stdio.h> #include <conio.h> void main() { clrscr(); int a,b,s; char c,d; s=a+b; printf("Enter any two numbers "); scanf("%d %d" , &a, &b); printf("The numbers you have entered are …

Hello, I had a question regarding nested structures. Lets say you *have* to use the following structures: (disregard the numbers thrown in, I just tossed random numbers in). [CODE] typedef struct info{ char name[20]; char address[50]; char serial[15]; } PERSONAL; typedef struct person{ PERSONAL individual[50]; int number; } PERSON; [/code] …

Hello ..i am trying to get the factorial of large integers but i get 0 every time i try,,can anyone tell me why ,,,Thanks in advance . [CODE]#include<stdio.h> #include<conio.h> int factorial(int n); //main main() { int x,fact; printf("Enter a positive interger \n"); scanf("%d",&x); fact=factorial(x); if (fact==-1) printf("the number is not …

Hello, I am having some trouble figuring out an assignment I was given in class. I am not looking for any code, but need a better explanation that what the teacher has given. Basically the program will calculate the number of days between any two days from 1/1/1900 through 12/31/2099, …

hi can anyone tell me how to write the output of this code to a file?? [CODE] #include<stdio.h> #define MAX 10 char array[MAX]; void main() { void addvalues(); addvalues(); } //funtiocn that will allowe the user to add the values void addvalues() { printf("------------------------> Insearting List Elements <---------------------------\n"); int i; …

Hi, I have to somehow modify a C-code by introducing a new array. We are in the chemical field: I have a small molecule (guest) inside the structure of a larger one (host). The existing array stores the square of the distance between a specific class of atoms: they are …

Hello everyone, i need to enter a value into a savings account paying 7% interest and €1,000 is withdrawn from the account at the end of each year. How many years are required for the savings account to be depleted? here's wat i did, but the loop not working: [code=c]#include …

[CODE] char in[100], *temp[10],var[10][10]; int i, n = 0,fulval=0; double val[10]; var[10][]="ANS"; [/CODE] it should be simple but i cannot figure it out. I want to assign "ANS" to var[0][0,1,2] but it did not work?

İs it possible now to use a system call in module programming ? after I "make" the module below I am getting warnings like that no errors WARNING: "sys_getcwd" [/home....mod/mod01/mod01.ko] undefined! [code] /* * hello-5.c - Demonstrates command line argument passing to a module. */ #include <linux/module.h> #include <linux/moduleparam.h> #include …

Well hello everybody! My name is Jacob, but I would rather be called Besai_lang or just Besai or Lang. I am a budding student of IT and am trying to build myself into a reputable tech. My interests are reading, mostly fantasy/realistic/Science fictions, studying math and the sciences, playing some …

Hi All, Can anybody explain here what is the different between normal function call and function to pointer call? How function to pointer is working internally? Why should we use function to pointer in call back? why not we call function call directly? Please pardon me ,if it is very …

hello hey i want to implement a program in c or c# for preemptive processor sharing tasks. can anyone plz help me out???

Hello. This is my first post, and I am fairly new to C. I am writing a socket program and I am getting a segmentation fault upon runtime. My program compiles fine. I'm pretty sure it is due to my implementation of my data structure. My struct looks something like …

does anyone know whats wrong with my function? [CODE] void quarter(detailstype info[]) { int i,j; for(i=1; i<4; i++) { printf("for month: %d", info[i].month); for(j=1; j<emp; j++) { info[i].qt1=info[j].sal_amount+info[i].qt1; } printf("%f", info[i].qt1); } }[/CODE] it is giving me this error: error C2111: pointer addition requires integral operand

Gday all, I am studying/part time teaching C++ in an australian technical college. I have been asked to write a problem and solution for a class of young students. This is what i have so far: The header file 'DIGI_O.OBJ' contains functions 'void setup(void), 'int Ain(void)' and 'void Bout(int)'. The …

Hi, I have a question regarding a program I'm writing in C. I have a few variables which I would like to assign a random number to. However the sum of all the numbers I assign should equal 1. I have not been able to find a way to do …

i have an unhandled exception cx0005:access violation in VC6++ while i try to run my c code with main.exe it gives a window showing to send a error report or to debug, while i give debug, it takes to fwrite file an breaks at the point --> if (anybuf(stream))//this is …

hie all, i needed to make a code in simple turbo c for ethernet packet injection as well as data reception. I tried the code in windows but its not working. possibly due to linux based commands. plz help me..

Hey all, I am pretty new to C and am trying to make a basic HTTP server to learn more about sockets. I managed to get the sockets working fine, and sent some data to the browser when I hardcoded the data. However I am now trying to read from …

we were tasked to come up with a peer 2 peer chat program using serial ports using only nasm and C language. can anyone give me an idea on how i can do it? or references that can help me figure out what to do. i'd really appreciate you're help …

[CODE]#include <stdio.h> int main(void) { int a,b,c; printf("Enter the sides of the triangle"); scanf("%d%d%d",&a,&b,&c); if(a+b<c || b+c<a || c+a<b) printf("cant form a triangle"); else if(a==b==c) printf("eq triangle"); else if(a!=b && b!=c && c!=a) printf("sca triangle"); else if(a==b&&b!=c || a!=b&&b==c) printf("Iso triangle"); } [/CODE] am starting to code.. i have coded …

Here is my assignment rules, i am stuck and cannot find what it is i am doing wrong. If some one could help me i would appreciate it * The main routine must be a 'manager' routine, which means o The function can declare variables o The function can call …

Hello everyone my task is to write a [COLOR="Green"]program that reads quizzes from a file 'q.txt', randomly selects a number of questions, and presents them to the user one-by-one, collecting user answers. After user has answered all questions, program gives user the score. [/COLOR] please can someone give me the …

Hi guys, Here's my project finally. It's name is C.L.O.S.E - The Command Line Open Source Editor Please review and comment. Mention errors if any, Also, for this code to work. Please download open.cpp, find.cpp, new.cpp, append.cpp, compile them and place all of them including the main source in a …

hey i used findfirst and findnext function but they can access only a path which is given by us. i want to access all folders and file of a drive like a antivirus do, when it scans the drive.... do u know how can we do it using c language?

hi, (on a linux system) i wrote the following code snippet to 1. write to a serial port 2. read the data that i have just written to the serial port. the write is functioning, but the read is not. if i use just the read (without "write", but by …

[code]// Dumps raw memory in hex byte and printable split format void dump(const unsigned char *data_buffer, const unsigned int length) { unsigned char byte; unsigned int i, j; for(i=0; i < length; i++) { byte = data_buffer[i]; printf("%02x ", data_buffer[i]); // Display byte in hex. if(((i%16)==15) || (i==length-1)) { for(j=0; …

I'm writing a cross-platform code and I need to be sure the following won't make me trouble. [code=c] struct X { unsigned char a:3; unsigned char b:5; }; [/code] Is using other then int types is part of the ANSI C? Will it be compiled with every compiler?

i want to write a program that prints the value in array which are at odd position, i've this for single dimensional array but confused about 2-D array. Single dimensional: [CODE] int main(void) { int num[10]; int i; for (i=0;i<10;i++) { printf ("Enter %d value: ",i); scanf ("%d",&num[i]); } for …

[CODE] #include<stdio.h> #include<string.h> #include<arpa/inet.h> #include<netdb.h> #include<sys/types.h> #include<sys/socket.h> #include<fcntl.h> #include<sys/stat.h> #include<stdlib.h> #include<time.h> int main() { FILE *logs; logs = fopen("/home/aniroot/logs/log.txt","a"); if(logs = NULL) { printf("fopen failed ... There would be no log for this session!!!"); } int sockfd,newfd; int err; struct addrinfo *res,*p,hints; struct sockaddr_storage their_addr; socklen_t addr_size; int yes=1; char …

Many times [inlinecode]strtok[/inlinecode] is recommended for parsing a string; I don't care for [inlinecode]strtok[/inlinecode]. Why? [list][*]It modifies the incoming string, so it cannot be used with string literals or other constant strings. [*]The identity of the delimiting character is lost. [*]It uses a static buffer while parsing, so it's not …

Hi I am trying to make my homework about a command line calculator, and i am trying to divide the entered string into small parts and i am trying to use strtok for this. [CODE] #include <math.h> #include <stdio.h> #include <stdlib.h> #include <string.h> struct var { char name[10]; double value; …

Hi , i know one method of deleting a record from a binary file. that is : read the contents of the file and every time check for some criteria based on which we want to delete the record. if record does not match criteria then write to new file …

i have a project anc i need to do an interface to my c program , there is any functions to do it?

I have a code like [code] int a=10; a=(++a)+(a++)+(a++)+(a--)+(--a); printf("%d",a); [/code] this gives the output as 51. while [code] printf("%d",(++a)+(a++)+(a++)+(a--)+(--a)); [/code] gives 56 as ouput. can you please explain the flow in both the statements.

Hi everyone, I am having some trouble here... I am asking the user to enter a file, and that file will read the contents and determine if the student will pass or fail the class. That part I am having trouble with is when I have to decide if the …

hey everyone, im tryin to generate random strings and store them in an array. can anyone please show me?

All right, here's my situation. I need to create an application (C language) that uses some of services provuded by unix kernel. I do not really want to install linux on my hard drive just for that. So I am looking for a tip on distribution that is suitable for …

Hey folks, I am trying to normalize a view on a given output. This is how it works, I need to print several characters but the maximum chars i can print have to be 40 per line. [QUOTE]aaaaaaaaaaaaaaaaaaaaaaaaaaaaa...till 40 aaaaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbb[/QUOTE] The algorithm works as follows: I have to find …

I have an array codes[26] which contains numbers inside {25,4646,23,12,.....29} Each position in the array corresponds to a letter of the alphabet. code[0] is a, code[1] is b, etc... I'd like to print the occurrences of each letter, something like this. If there are 12 A's, 5 B's AAAAAAAAAAAAA BBBBB …

I'm trying to run this code in cygwin 1.7 but i get segmentation fault when I choose to search. I tried this in cygwin 1.5 before but it works. does anybody know the reason why it won't work in cygwin 1.7? here's the code [CODE] /**************** Rachel Perono running BST …

Hey everyone, I have a series of loops that read through a text file and then output the occurrences for each letter on the file. This seems to be fine when using small text only. When providing a lot of text it just takes too many CPU resources and that's …

[CODE]/* This function accepts a socket FD and a ptr to a destination * buffer. It will receive from the socket until the EOL byte * sequence in seen. The EOL bytes are read from the socket, but * the destination buffer is terminated before these bytes. * Returns the …

Hi, Is it possible to read a file only to get the first 100 bytes from the begining and the last 100 bytes at the end? I have to get info from files that are in the first 100 bytes and in the last 100 bytes of the file and …