[c] Forum Topics

hey there, good day, i have a problem regarding a csae study, im a newbie and i dont know what's the problem of my source code...help is badly needed,thanks

I've learned Java, C++, and most recently C ( Fall of last year). Seeing how there is a great deal of threads for C++ I'm thinking that I should go for C++. Which language do you suggest?

I want to sub-function the reading and printing data. But it says data corrupted. Sorry for my poor english. Example of inputfile.txt [code] Michael 000000 m [email protected] 75 82 90 [/code] [code] #include <stdio.h> #include <string.h> void readData(); void printData(); struct student { char studName; int studID; char sex; char …

Hello, I'm starting in Assembly development. Then recently i buy a book of Assembly, in it i have the table with the decimal numbers to hexamals and to binarys, like this: [code=asm]Dec - Hex 1 - 01 2 - 02 3 - 03 4 - 04 [...] 10 - A …

I am working on a program to rewrite an assortment of integers in increasing order yet they are in decreasing order. I am pretty sure the problem is in my indexMax or sortArray functions but I cant find it. Can anyone help? [CODE]#include <stdio.h> #include "genlib.h" #include "simpio.h" #define size …

I want to read an amount of string from the file Given inputfile.txt Micheal Tammy Alex [code] #include<stdio.h> #include<stdlib.h> int main(void) { FILE* input; char name[100]; char temp[100]; input = fopen("inputfile.txt", "r"); while((fscanf(input,"%c ", &name[i]))==1) { printf("%c ", name[i]); temp[i] = name[i]; i++; } } [/code]

hello! I need a program that validates the input of time. (in 24hr format) The user enters: hhmmss The problem is, I have trouble with complex programs. I came up with this program, but i know it's too basic for what she wants. I need to have arrays in there, …

* Our focus here is on STRINGS since they are arrays of characters. * Write a program that reads a line of text (possibly a sentence therefore you can't use scanf() here), counts the number of words in it, and displays the words. * For our purposes, we define a …

Well hello i am new here and i am an begginer programmer .I would like to know if there is some way how to find out what programming launglage was used in already compiled exe file. Thank you for you time

Hi all, I'm writing this piece of code out in unix. What I want to do is pass an integer argument through the command line and then manipulate it from there. I've done char strings before but cannot seem to get it to work with int's. Once I have this …

i'm trying to parse a string of digits that can be 1 to 3 chars long, but how to do this is eluding me. would an isDigit method work? like this: [CODE="c"] if(isdigit(vararray[v])){ if(isdigit(vararray[v+1]) || vararray[v+1]==NULL){ if(isdigit(vararray[v+2]) || vararray[v+2]==NULL){ if(isdigit(vararray[v+3]) || vararray[v+3]==NULL){ return; } return; } return; } return; } …

I have this code: [CODE] #include <stdio.h> #include <stdlib.h> #include <unistd.h> int main(int argc, char *argv[]){ char *s = getenv ("HOME"); FILE *f; int optchar; char line[300]; char p[100]; strcpy(p, s); strcat(p, "/todo.txt"); while ((optchar = getopt(argc, argv, "r:a:ldc")) != -1){ switch (optchar){ case 'a': f = fopen(p, "a"); fprintf(f, …

Hi, I have one address (0xffbff21c) where I have stored 2 int values, depending on the way I read it. Where is the second value stored (at which address)? My code is [code=c++]#include <iostream> using namespace std; int main() { const int a1 = 40; const int* b1 = &a1; …

Hi Friends, I am facing a probelm. The moment I complete a program i C (version 3), it complies successfully. However, the moment I try to run the program it says a Linker error. I have tried to sort this out through Option-Linker, but in vain. I really need you …

Please can anybody tell me the difference in return 0 and system ("pause");

Hi everyone, In my internship, I need to prepare a telephone directory with LDAP and a simple program which uses that with C language. I am using Ubuntu machine and I guess I manage to install LDAP without any configuration. 3 days past and I have nothing done. Is there …

Hiya, I've got a lickle program here which reads data about people into structures and then saves their surnames in a Binary Search Tree. There is more stuff to go to that program, that is why I need structures, but at the moment [B]I can not understand why it doesn't …

I have to hit <Enter> twice after inputting my dollar amount and store selection I think I am just missing something simple somewhere, but am going stupid looking for it. Went to the internet to try and find a good debugger, but have no idea how or where to even …

Please can somebody help me to concatenate names in c. I try to enter names but anytime it will teat them as separate strings. this is what I tried to do : But i was getting segmentation faults, can you figure anyway out.

Hi, I'm trying a few things in C, but cannot advance now. This program should read what it written in the shared memory if does not take any arguments. However if arguments are passed it should write what is passed into the memory. I can make it work if just …

let say I got input.txt with following thing [QUOTE] Kelly // name of student 67 // Biology Score 89 // Chemistry score Michelle 75 45 John 78 90 [/QUOTE] and I use this fscanf command to scanf all the file until EOF: while ((fscanf (input, "%s %d %d", &studName, &bioScore, …

Hi guys, I'm working in C in PuttY server.I'm looking for a program that can display an interactive menu that interacts with the user and also display a clock in the top right corner of the screen. So I need a program that can draw a border using C, and …

[code] #include<stdio.h> #include<stdlib.h> #include<conio.h> struct node { int info; struct node* llink; struct node* rlink; }; typedef struct node* NODE; NODE insert(NODE root,int data) { NODE temp,cur,prev; temp=(NODE)malloc(sizeof(struct node)); if(temp==NULL) printf("\nOut of memory"); temp->info=data; temp->rlink=temp->llink=NULL; if(root == NULL) { printf("\n1st time\n"); root=temp; return root; } prev=NULL; cur=root; while(cur != NULL) …

Hi all, am a new member in this forum, hope I enjoy been a member and that will try and contribute my quota to make this forum a Open source community. Am Maxwell, a Ghanaian holding CCNA and MCSA. I've just started learning C programming greetings to all

Hey, i need your help :(. Im working on a mail-downloader but it wont work (pop3) :(. mail provider:[url]www.gmx.net[/url] It always say "Wrong ID+PW" why? here is the code: [CODE=C++] #include "stdafx.h" // includes are there ;) //Prototypen int startWinsock(void); int main() { char buf[256]; long rc; SOCKET s; SOCKADDR_IN …

Realized something today by accident. I am asking for a dollar amount in my program, and checking to make sure it is a valid amount above $0. What I am not checking for is a character response. I have tried some stuff, and nothing seems to work. Can anyone look …

Please can somebody tell me when and how to use the time .h library

I want to use to dimensional arrays to draw a graph. How do i go about it. I have never use it before. Please

So I was looking over someone elses code, and the main is unusual, no type. its just: #include <math.h> main(int argc, char *argv[]) I've come up with 2 theories: 1) It defaults to int? 2) #if/#endif directives somehow negate the need for int? Have no experience with this though, so …

Hi , IM TRYING TO WRITE A TEXT FORMAT PROGRAM along the lines of the algorithm & pascal code found in similar named problem in "how to solve it by computer" R.G.Dromey. What it does is take a "limit" from user and users input text...it outputs the re-formatted text as …

Hello, I was just trying to write some simple codes to learn C. I wrote 3 functions, create a list,print a list and free a list. but i get segfault while printing the list. (by the way, list is not a list datastructure. it's just an array) In create_list, I …

Hi, Hope you can help me on this. I have 4 different application develop in different languages(c/c++, c# and java), all of them already done and stable, I need to integrate those 4 application into 1 using c#. Is this possible? Can anyone gave me a hint or a technique …

So 2 questions. 1) MPI_Init. I'm trying a python -> c -> cluster project. So I have no problem with the python -> c, but the problem comes with the c-> cluster. I'm making a python wrapper (I believe this is the correct term) around a premade c driver for …

For Input 4 15.01 15 3 3.01 The value of 'avg' is becoming 9.00. I don't understand why this should be 9.01. Please help. [CODE] #include<stdio.h> #include<math.h> double round(double x) { return floor(x * pow(10.0,2.0) + 0.5)/pow(10.0,2.0); } int main() { //freopen("10137.txt","r",stdin); //freopen("out1.txt","w",stdout); long i,n; double sum,avg,sum1,a[1005]; while(scanf("%ld",&n) == 1 …

Hello, I google and search through about the 2 dimension array and I still not really understand how to do it.. for example: I got a file input called namelist.txt with following thing John Jason Leonard Kelly Kate Ash and I got the following code: #include <stdio.h> int main () …

Greetings All, I was wondering about how a build process goes on in Vc++. I want to know that is there any intermediate assembly file generated while building a source file as what happens with gcc. If the answer is no ,then why gcc build process has this ones step …

Ok, so this is confusing me alot, right now I have a structure as such: [CODE]struct f_c_8 { union { float f; unsigned char c[8]; }; };[/CODE] now I declare a variable of that type [CODE]f_c_8 Time;[/CODE] However, The following prints correct number [CODE] fprintf (output_file_pointer,"\t\tTime: %f\n",event_data->Time); [/CODE] And the …

I am making a program that has a bunch of embedded if statements. I need random number that are between 0 and 1. In order to get really "random" numbers, I set up the program to get the seed from the cpu time. Then, to get the number between 0 …

I have an array of floats: float net_pay[5] . Each element is a decimal number ie. 999.99, 35.42, 318.34 etc . What I would like to do is to scan the decimal portion, in first case it would be 99 to a variable cents. I know how to do it …

Can anyone help me to program standard deviation? Here is the instructions for this program: Write a program that takes as input five integers and outputs the mean and standard deviation of the numbers. If the numbers are val1, val2, val3, val4 and val5, the mean = (val1 + val2 …

Nickname's the FotoDoc. I'm 45 and live in south Texas. I have a B.S. in Electronic Media and a M.S. in IT Management with 4 master level certifications...yes I still find myself unemployed! (Go figure) I think it's probably got something to do with my experience level as a manager...which …

i need help I need to display Example 23.4 and display 23 and .4 how do i do this? so i need to convert a decimal into fraction like this [url]http://www.cimt.plymouth.ac.uk/projects/mepres/book7/bk7i17/bk7_17i1.htm[/url] i need to display 4 and 0.276

I am trying to make a dialog box that can open, edit and save .txt files. I referred my codes in this [URL="http://www.winprog.org/tutorial/dialogs.html"]tutorial[/URL]. How am I going to modify the code so that instead of a "save as" function, it will directly "save" the file that it opened/edited. Thanks in …

Does anyone here have any tips on using inb and outb for interacting with hardware on a Linux system? iopl(2) and inb(0x61) don't seem to work very nicely... Infact, inb(0x61) gives me a segfault. PS: My reliance on this forum is starting to become embarrassing :P

This is a just simplified case because my C file is too big to post it here: [CODE=C] int main(int argc, char **argv) { GtkWidget *window, *vbox, *toolbar, *locationentry; GtkToolItem *locationbar; gtk_init(&argc, &argv); window = gtk_window_new(GTK_WINDOW_TOPLEVEL); vbox = gtk_vbox_new(FALSE, 0); toolbar = gtk_toolbar_new(); locationentry = gtk_entry_new(); locationbar = gtk_tool_item_new(); gtk_container_add(GTK_CONTAINER(locationbar), …

[code=c] #include<stdio.h> #include<conio.h> typedef struct { int rno; char name[10]; float marks; }stu; stu stu3; void getf(stu * stutmp); void show(stu * stutmp); void main() { clrscr(); getf(&stu3); show(&stu3); getch(); } void getf(stu *stutmp) { scanf(" %d",&stutmp->rno); printf("%d\n",stutmp->rno); scanf(" %s",stutmp->name); printf("%s\n",stutmp->name); scanf(" %f",&stutmp->marks); printf("%f\n",stutmp->marks); getch(); } void show(stu * stutmp) …

Greetings, Is there any way may be some tools to view and explore contents of .obj files (in a formatted or unformatted way) or an executable. Can we do it using gcc? Please guide. Cheers!!

[CODE] #include <iostream> #include <algorithm> #include <conio.h> #include <cmath> #include <iomanip> using namespace std; int main() { int terminals[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}; int count,row,col,i; int limitcomp[20]; int coordinates[2][20]; double smallest = 0.0; double current = 0.0; double x, y; int network = 1; double chunk, total; do { cout<<"Enter number of computers: "; …

Hi everyone, So I am writing this program that is supposed to do the following: Create a program that accepts a string from the user (not from the command line) and displays: 1. The string using upper-case letters, e.g. all lower-case letters are converted to upper-case letters 2. The string …

Hey guys. I was just following lazyfoos' SDL tutorial when i got stuck on lesson 08. Everytime i try to compile and run the source code the program closes immediately and a window pops up that says "An access violation(segmentation fault) raised in your program.". :S The compile log: Compiler: …