[c] Forum Topics

Hello to everyone! or should I say, "Hello World"? I am new to C and new to this forum, and this is my first post. I wrote a simple C program which I called: isitprime.c and generated [B]isitprime.exe[/B]. I can call this program [B]isitprime.exe[/B] from the command line with an …

my program creates a file then copies a file into the file created then i can copy another file into the file created turning it into one bog file i am having troubles when coming to extracting the exact file, can anyone suggest anything on how about to achieving this.? …

int a=10,b; b=(a>=5)?b=100:b=200; printf("%d",b) why does the output shows as 200? Plz explain

hi i want to create a program which will be working like a agenta,meaning a user will fill in a form with an action he wants to perform and the time he must do it and my program should pop up a window which will be trigered by his computer's …

#This is a homework assignment# I need to calculate how many seconds old I am in C. I'm thinking that I can take my birthday as user input and convert it to a date with strptime. I then would like to take the present date and put both it and …

Construct a C program that will accept up to 3 digit integer number and display the hundredth's digit, tenth's digit, and one's digit. Example: Enter integer number (maximum of 3) : 143 Hundredth's place : 1 Tenth's place : 4 One's place : 3

hey guys ive made a project in vs2010 that has a hardcoded (int val; val=800000; in main) amount set at start , the amount is 800000 (800k) i gave it an int type , and it works all well but when i try to run it in the anicent turboc …

I am supposed to find a file recursively in a given directory. Rules are not to use find and recursive options like ls -R and grep -r. I can any other other option expect recursive. I had written the script using recursion. [CODE]#!/bin/csh foreach i (`ls -R $1 | grep …

to find the size of image by knowing the height and width....and by knowing the pixel depth...any solutions plz help.....

Ok, time to get off my ass and learn C and C++. However, I'm having a bit of trouble finding a free compiler; I'm a newbie so it needs to have a friendly and explanatory GUI if possible. Just post name and/or link, thanks :D

hi if i copy a copy file into another file does it equal 2 files with 2 eof or does it become 1 file ?

Hi, i am working on a project that involves converting 8-bit hex numbers into integer. Firt, I have to say that my hex number is not a number right now, it is only a bunch of characters. for example: int d; char code[9]; code="FFFFFF01"; d=strtol(code,NULL,16); when I try to printf …

i am new to programming............i just want to create a linked list program plz check for error for me [code] #include<stdio.h> #include<conio.h> #include<malloc.h> void insertAtEnd(int no); void insertAtBegin(int no); void insertAtPos(int no,int pos); template <span= id="IL_AD" class="IL_AD">Display</span>(); <span id="IL_AD5" class="IL_AD">struct</span> LinkedList { int num; struct LinkedList *next; }; typedef struct …

hi ,, i am kunal ,, n m a 3rd year b.e. student ,, really in need of mini projects on c as well as c++ .. can u plz plz help ??

Hi, I need to write a program to open a file in usb mass storage devive(pendrive) without using mount point.I used libusb API to open the device but how to open a file in that without knowing the mount point.Any API functions are there to open text file in that? …

Hello.. i am facing the problem in dynamic allocation to read the data in structure. here is the code. typedef struct { short int fft; short int diff; }symbol; typedef struct { symbol detail; float RE[]; float IMG[]; }receive; fun() { float a[fft_size],b[fft_size]; //here i am allocating the memory for …

That had a string delimiter that you could specify. It would be quite useful if you guys could help me remember. It might have been fscanf or might have been a c++ function.

i get a undefined reference to get_menu_choice error message but i dont know why ? [CODE] int get_menu_choice( void); int main() { //code// while (choice != QUIT) { choice = get_menu_choice(); if (choice == 1) //code// } else if (choice == 2) //code// } if (choice == 3){ puts("you chose …

I'm working on a program to score a bowling game. Right now, my terminal says that my program has a seg fault, but I can't tell where. Any other insight on how to help my program do what it's supposed to do would be helpful. I'm still not sure how …

Hi, I've been searching all over trying to find an answer to my problem about reading/writing text files. I saw this very old post/code snippet and am wondering if you could help me with my own: How about if I have this input file: 39882 M 7:45 18:16 10 hours …

OK, I was working on a project where I needed to randomly generate tens of thousands of 1s and 0s. I started noticing it didn't seem very random. To test it out I created an array of 458752 (896x512) ints. Then, I tested by seeing how many 1s were generated. …

Hey everyone, I've got a question about something called struct tm. I'm not really even sure if it is a string, array, or what, otherwise I would've said that instead of 'something'. I need to know how to use it. I've been searching the internet for the past hour, and …

I have a problem. I wrote: [CODE] for(i=0; i<n; i++) { m++; char **exP = realloc(exParam, m*sizeof(*exParam)); char **exT = realloc(exText, m*sizeof(*exText)); exParam = exP; exText = exT; explode = strtok(lines[i], "#"); while(explode != NULL) { exParam[m-1] = malloc(strlen(explode+1)); strcpy(exParam[m-1], lines[i]); exText[m-1] = malloc(strlen(explode+1)); strcpy(exText[m-1], explode); explode = strtok(NULL, "#"); …

please give me an example c program that uses an array of records

the given input as image.....later we have to find which is the storage format like 4:4:4 or 4:2:2 or 4:2:0.... any suggestions plz.....in C

I was finally able to get the html code from web pages. Just to face another problem! Now I have to extract all the hyper links from the html, i was trying to do this with strtok.. no luck at all. Is there any other function that can help me …

Good day! we have an exercise on how to create a list but i do not know how to do it without an algorithm. Can you help on what is the algorithm to create a linked list?

Dear guyz, I am creating a file archiver/extractor(like tar), using POSIX API system calls in C. I have done part of the archiving bit. I would like to know if any one could help me with some C source code(using above) to create [B]a file header for a file in …

Hi, I have started to study the C language, and as anyone, problems are on. I am having problems with the for comand for; I do apologise if I am not using the CODE and the ICODE correctly. here an example: [code] #include<stdio.h> int main() { int i; int b; …

hello. i have been studying C++ and i programmed the following. can any one convert this in C language please it is urgent. [code] # include <iostream> # include <iomanip> # include <windows.h> #include <conio.h> using namespace std; void pw (int,int); void swap( double&,double&); void main() { double arr1[10][10],arr2[10][10],arr3[10][10],d,d1,d2,d3,X,Y,Z,x1,x2,x3; int …

Hi, This is my first post in daniweb! I've two questions: First question: I'm currently studying about classes, and could get '=' overloading format: [CODE]​[COLOR="Red"]T&[/COLOR] T::operator =(const T& b);​[/CODE] Why we set it to return reference? what's the use? Why couldn't simply be: [CODE]​[COLOR="red"]void[/COLOR] T::operator =(const T& b);​[/CODE] I've used …

Hello, I have observed that when generating assembly code from simple C programs using GCC, the stack is initialized as follows: [CODE]pushl %ebp movl %esp, %ebp andl $-16, %esp [/CODE] my question concerns the last instruction where -16 is anded with the stack pointer. Am I correct in assuming that …

HI the prgram below request a user to enter 3 character id number and interger age. a function must be used that tells the user how many years to retirement. i must pass the age and print a message in the function. retirement age is 65 for persons over 45 …

Hi there, hope you guys are having a good start of 2011. I want to download the html code of any article on wikipedia. I am able to find wikipedia's ip and establish a connection, but how do i reach articles? also i tried using send() and recv(), i was …

[CODE] //myMalloc.c #include<stdio.h> #include<unistd.h> #include<stdlib.h> void *newMalloc(size_t vol); void newFree(void *adPtr); void save(); void search(); void *findSpace(); void freelist(); static int buf[12500]; void *newMalloc(size_t vol){ // some code } void save(){ // some code } void search(){ // some code } void newFree(void *adPtr){ // some code } void *findSpace(){ …

what would be the formula in getting the Hundredth's place, tenth's place, and one's place of a 3 digit integer??

hi how are you ? i have project in loop but i dont know how to solve it ? Write a C program to read results of class of 20 students. Each student has 4 results, distributed as follow: • Test 1 25 % • Test 2 25 % • …

good day and a happy new year to you folks. im trying to copy the contents of one text file to another text file but i cant seem to get it right. written below is the code im using but it does not seem to work. any help please? [CODE]#include …

Could anyone please explain what exactly bootstrapping is? As far as i know it is something related to "the compiler for C itself wriiten in C"

hi! iam a newbie how can i get the 10th, 100th, 1000th place for example: the interger is 1235, the ones place is 5, the tenth place is 3, the hundreds place is 2, and the thousands place is 1, please help me and how do you program it at …

Hi everyone. I am an undergraduate student of mechanical engineer and i am trying to make a program that will convert a decimal number to a binary one and a hexadecimal one using c . The problem is that i am not familiar with c at all. I am only …

The class should be capable of storing, manipulating and printing dates. Dates can be initialized by assigning 3 numbers - the day, the month and the year (initially restricted to any date after 1st January 1900 and before the year 3000) e.g. `Date d1(26,3,1999);` Dates will be printed by either …

hi guys,Iam learning the c language and still a green one really.I have this program am trying to develop using code blocks 10.5.Th code is as follows; #include<stdio.h> #include<ctype.h> #include<stdlib.h> struct secguard { char first_name[40]; char Last_name[40]; char gender; int age; int ID; char start_date; int work_rec; }; void main(void) …

Hi, there is something I want to solve. Here is the problem: I have an array : alpha[26,26] I appointed random number(between 0 and 25) to each member of this array but I don't like this situation: I tell with an example alpha[0,0]=23, alpha[0,1]=11, alpha[0,2]=08, <---- ... alpha[2,2]=08, <---- ... …

Given the declaration double dbl_num = 123.456;, write a program that prints out the value of dbl_num in both floating-point and scientific notation formats.

hey all, first post of a beginner coder ;), I keep geting the following error : conflicting types of 'graphic_choice'.. its not a warning so it wont compile. I haven't finished case 7 so that may have some syntax issues. hope this isn't to big of a code block? i …

Hi there, I was wandering if anyone can give me a brief explanation on how to connect my C application to the Internet. What i would like to do in the end is to access a web page trough the application and have means to read the html code behind …

And yet again here I am asking for help. Thing is, two times I've came to this forum too find guides as answers and since I've always been pointed in the right direction, I humbly ask for guidance one more time. I've been trying to study graph's and been using …

Hi everyone, I'm new here ... haven't had my warm welcome yet ;P So i need your help with my program. I'm supposed to program a simulator of the reader writer problem without using threads. So i thought i could use a timer to interrupt the running process every 2 …

Hi! I've got this structure struct *cell{int row,int column,int distance, struct cell *next}. By calling a function, I fill a linked list . The problem is that I cannot find how to delete the nodes that have the same row and column.Let me provide an example. Let's say that the …