[c] Forum Topics

Hi folks, I am a beginner in Socket Programming. I am trying to do some simple stuff but had a basic query. I would like to implement something like wget in C top of a TCP socket (i.e., without using any HTTP libraries). Just provide a URL (Example-- $wget [url]www.foo.com/bar.pdf[/url]) …

I am trying to write my own shell. I am having problems with the user input part. I have made an array (char inputBuff[512]) and I want to read in user input. I am using ffputs() and ffgets() but I want to limit the person to the 512 size, and …

Hello, everybody!!! Please, who knows forums to discuss about parallel virtual machine (PVM), could you suggest me. I am writing PVM application, but I don't know well how to read files with PVM. Thank you !

Hi again guys. Well i need to convert char to int my problem is how can i get the exact value of int if for ex: [CODE]char x=2;[/CODE] i need to convert that to integer.

Hello, good day. :) I got a problem with "passes occurred". This is the only problem left in my program. My program is about Naive Searching and Binary Searching. There's no problem with my "Naive Searching". The problem is the "Binary Searching". [b]Naive Searching:[/b] This is the result when I …

Hi, I have a little problem. I need to write a function that will be given a number (with unknown number of digits) and it will search the number for similar neighboring digits. I must say that I'm not allowed to use arrays (unfortunately). I thought of disassembling the number …

Hello, I am writing a OpenGL program, but I can't get the mouse to do what I want. The code looks like this [code] main() [INDENT]init OpenGL stuff display function1[/INDENT] Function1 [INDENT]Start graphCalculation[/INDENT] graphCalculation [INDENT]plot graph in OpenGL[/INDENT] [/code] What I've tried to do, is to add a "zoom" function, …

Command line arguments in C #include<stdio.h> int main(int argc,char *argv[]) { FILE *fp; char c; if(argc==2) { fp=fopen(argv[1],"w"); while((c=getchar())!=EOF) { putc(c,fp); } fclose(fp); fp=fopen(argv[1],"r"); while((c=getc(fp))!=EOF) { printf("%c",c); } fclose(fp); } return 0; } How to run this program in linux? I have tried these steps: 1. open terminal in linux …

I am making a program to compute simple interest. P*R/100 this is what i have done... Please tell me whats wrong [CODE]int main() { int p,n,count; float r,si; count=1; while(count<=3) { printf("\n enter values of p,n,andr"); scanf("%d %d %f",&p, &n, &r); si=(float)p * (float)n * r / 100; printf("simple interest …

Hi, I thought I have mastered fighting segmentation fault thanks to the assistance of you guys. But still in this days I am getting seg fault. And there is no clue at all. I am writing a suffix tree using a trie. Here is the trace of segmentation fault: [CODE]aba …

I have just started with MinGW. I tried to compile a simple C program ie., Hello World but came up with the following error error:no include path in which to search for stdio.h can anyone help me out with this problem....

Can anyone help me with my code?! I need to do a programm binary to decimal converter without using library, just stdio.h my code works wrong [CODE] void bin2dec(){ long int n; int s=1,j,p=1,i=0,x; int digit=1; printf("Input a binary number: "); scanf("%ld",&n); while(digit==1) { x=n%10; s=s+pow(2,i); i=i+1; n=n/10; if(n==0) digit=0; …

Hey guys. In C++, if I wanted to read strings into an array I would do this: [code]std::string theWord = ""; for ( int i = 0; i <= SIZE; i++ ) { std::getline ( std::cin, stringArray[ i ] ); }[/code] In C, I am having trouble comming up with …

I have made a program to test if the string entered is a palindrome or not. Here's the source code: [code=c]#include <stdio.h> #include <ctype.h> #include <string.h> void clrsp(char *); void rev(const char *,char *); int main() { char str1[80],str2[80]; printf("Enter a string: "); fgets(str1,80,stdin); str1[strlen(str1)-1]='\0'; //eliminate newline clrsp(str1); //clear spaces …

Developing on an ubuntu system, using code::blocks. Need to read and write to XML config files. there is a DOM library for Gnome, libgdome2. Found a good source for this at [url]http://gdome2.cs.unibo.it/[/url] I am trying to compile the following code, which is more or less straight from the tutorial on …

Hi all, Currently im doing a little coding to communicate between two PCs through RS232 ports. i am thinking of using: "writeFile" to send a string to the other PC, "readFile" to read back the acknowledgement string from that PC and "strcmp" to check if the read back acknowledgement string …

Hi, well what I'm trying to do with this, is to read a text file line by line and pass its data to the struct. the problem is that not only i can't read the strings and put it on the struct fields, I also get a segmentation fault. Could …

i have finished writing my program, but teacher want me to write a checkbook balancing program of a user's account. It has to use getline () to read a line, which will contain either the word "withdrawal" or "deposit". After reading each pair of line, the program should compute and …

Hello I'm trying to get a random float number between two float numbers using rand() function but I couldn't write it by myself, can you show me how to do it? Thanks...

I have the R code for Fisher's exact test, however, I it's a bit too much and I am getting bogged down trying to read through the code. My objective is to calculate the test for a 2x2 table, but I am a bit confused as to where to begin... …

struct tnode { int data; struct tnode* left; struct tnode* right; }; struct tnode*talloc(int data) { struct tnode*p=(struct tnode*) malloc(sizeof(struct tnode)) if (p!=NULL) { p->data=data; p->next=NULL; p->right=NULL; } return p; } int main(){} I am getting a [error: 'NULL' undeclared] error, Any help would be greatly appreciated.

I am 71, a retired computer programmer who last worked on a Cray YMP using UNIX and I wrote programs in C about 1990. I have been retired now for 15+ years. I spend some time of the DirecTV forum and the DBSTALK forum discussing Directv HD-DVRs. I had a …

So this is part of the code in one of my functions, and whenever I enter either yes, no, or something else, no matter what the response the do loop will loop again. I don't think my "if(response == "yes")" is working. Help please? :D [CODE] char response[10]; int answer; …

Hello everybody! I am just a beginner in C, so i have some problems with the password input . This is for bank account, it asks user for password input, but it doesn't works properly for three attempts, in order to go to menu: Could you help me please, what …

I write this program to cheak user name and password enter by the use is same then the user is able to login, for this i declare a pointer array to store some user name and password (like sin up by user),and then the user enter her user name and …

Hello World, [INDENT][/INDENT]Can anybody help me to create a windows applcation with turbo c. Am newbe in turbo c and I learned to make c programmes very well, but I Am facing a lot of problems since I moved to windows applications and i can't understant why turbo c doesn't …

I'm working on a C program that needs a lot of dynamic memory allocation of 1-D and 2-D arrays. The program works fine when I compile and run it using windows and Visual C++, but when I compile and run it in a Unix environment, I get slightly different results, …

Sir, i'm new here searched the forums and web. I'm a beginner and dont know C very well. The Question actually is this: [QUOTE]Write a C function called DistinctWords that counts the distinct words in its input string and prints them in the descending order of number of its occurrence. …

After over a year battle with cancer, my friend [URL="http://www.daniweb.com/forums/member5020.html"]Dave Sinkula[/URL] passed away the 14th of April of 2010. He continued to post in this forum and others as much as he could, even after the diagnosis. And never reflected the fact that he knew his days were counted. He …

Iam new to programing, so be gentle!!!! I have to program the Fibonacci Sequence up tothe first 29 numbers. The output starts at 1 2 3 5, not 0 1 1 2. What am I doing wrong to not get the 0 1 output. Here is the code: [code=c++\] #include …

I've got to write an application in C which can take an input file containing RISC instructions and then output to screen the encoded version of these instructions. I will be working with the following op-classes: 0 1A 2A 2B 2C 3A 3B 3C 3D I already have the code …

Do the following for the user-entered number of students. Find the average marks for a student of his marks in 3 subjects. Print whether he passed or failed. A student will fail if his average is less than 50. Use for loop...can u help me writing this pgm.....thankss:-/

Hi, this is not a homework or assignment. I am preparing for interviews. I just wanted to know how do I find out say the next 6 byte aligned address given any random address? Hope I am clear. Any code or explanation will be appreciated. Thanks.

5. Write a program to automatically generate the telephone numbers. The requirements are as follows: Declare a character array to hold a 7-digit telephone number •Accept the telephone number as a string. The first four digits is the department code and the last three digits is the telephone number. (Example: …

Hello, good day. :) I got a problem here in displaying the items of array. In "Display Items", it should display the numbers that I inputted in the "Input Items". Is there lacking in my code? [b]Menu:[/b] [IMG]http://i168.photobucket.com/albums/u162/SHENGTON/menu.png[/IMG] [b]Input Items:[/b] [IMG]http://i168.photobucket.com/albums/u162/SHENGTON/input.png[/IMG] [b]Display Items:[/b] [IMG]http://i168.photobucket.com/albums/u162/SHENGTON/result.png[/IMG] Here's the code: [CODE=C]#include<stdio.h> #include<conio.h> int …

hi This is Poornima.L any one can u help me how to convert double to int ???? int int_var=(int)double_var; wen i give the above stmt i get floating point error:abnormal termination in my console screen help me out

How to declare an array to store the different five(5) name and initialize the following char array with {"Lara","Lin","Nitin","Krishna","Sophia"}

hiiii, can anyone tell me about computational complexity of AES, DES and BLOWFISH techniques. i am using these techniques for a string. and calculating execution time of these thre techniques. and now want to know their complexity on the basis of execution time... plzzz Help me out! Regards!

I want to write a Code in C which can create copy any given file (txt, bmp, jpg, pdf etc) what i've written so far is: int main(){ FILE *fp; char ch; FILE *fpW; if((fpW = fopen("file2.gif","wb"))==NULL) { printf("Cannot open Destination file.\n"); exit(1); } if((fp = fopen("file.gif","rb"))==NULL) { printf("Cannot open …

Hello all, I've had some java experience and looking at my uni units next semester, 1 involves using C, so I decided to start coding C :p. Is there anything wrong with the program structure below? I think there is also some code duplication in there also. [CODE]#include <stdio.h> /* …

G'day all... I know there's a sticky in this forum for books that are recommended as C++ references from newbies to advanced coders. What I'm wondering is this... What are the online resources you [B]most[/B] recommend for C++ coders? What I'm looking for are those resources that are so useful …

This is the code wrote so far.. I'm new to Cprograming. please help thank you! [CODE]#include <stdio.h> #include <stdlib.h> #include <conio.h> //Compute f(n)=n!, for 0<=n<=100 void f(int n){ // Adjust the array a so that each array element contains a single // digit without altering the number represented by the …

why computer takes more execution time when a function is called ? i want theoritical explanation.............that is what happens internally.......... this is diadvantages of Function Why it takes more execution time ?

Hi everyone, I am using TC 3.0 . I'm getting an error as.. BGI error:graphics not initialized. But I've used initgraph. So, i thought i'll use this [CODE]/* read result of initialization */ errorcode = graphresult(); /* an error occurred */ if (errorcode != grOk) { printf("Graphics error: %s\n", grapherrormsg(errorcode)); …

Command line arguments in linux usin C programming lanuage

set operation using array in c without using library function

here is my code of a linked list with a header file however it works in debugger mode but in normal run time it crashes Please help! Here's the header: [CODE]/* Lab3 Abstract Data Type - header file */ /* Type Definitions */ typedef struct { char state[20]; int year_adopted; …

[CODE]set_child_at (node=0x7fffffffe080, child=0x61e250, index=1) at 10679.c:319 319 if ((*node)->count_children == (*node)->m) (gdb) p *current_node $3 = (trie_node *) 0x0 (gdb) n 324 index = hash_insert((*node)->hv, index, (*node)->m, (*node)->m1); (gdb) n 325 (*node)->children[index] = child; (gdb) p current_node $4 = (trie_node **) 0x61e270 (gdb) p *current_node $5 = (trie_node *) 0x0 …

I define a variable as float num1; I try to use a scanf to read it scanf("%f", num1); I get some (what I think is a crazy response) statement expects a float, argument is a double I am sure I must be doing something wrong because I also get this …

[CODE] set_element* make_set(int key) { set_element* node = (set_element*) malloc(sizeof(set_element)); node->parent = node; node->rank = 0; }[/CODE] In the above code there was no return statement and the function was used like this [CODE]elem1 = make_set(f1);[/CODE] And the code was working as expected. This is very funny. I am not …