[c] Forum Topics

I want to make a dynamic array. but when I view the array, I think there's something wrong with the index part. Please help. Thanks! here's my code: [CODE] #include<stdio.h> main(){ int* a; int number; int choice; int index = 0; int head; while(choice!=4){ printf("\tMENU\t\n"); printf("[1] add number to array\n"); …

Iam currently working on the design of preemptive scheduler iln Borland C. I want to know about the use of interrupts and timers in Borland C for preempting the task. Just clue of upgrading about them is enough.

Hello, This is what i need: I have a php file on my website ([url]http://example_site.com/php_file.php[/url]) ((and no, that isn't the actual site)) And i have some C++ knowledge. Now how can i get C++ to send a variable (eg: name) to my php file. ((Client -> Server)) I have no …

What I am trying to accomplish here is to split a long integer apart so I can look at its first, last, and center digits. What I am currently using is this: [code]int main() { long i, t[1024]; i = 100; while (i < 150) { t = i; // …

hi, i am new to c have to write a program to check the shape. I think the error is somewhere at shape= square. I know i can use printf statements but i want it in this format. Can someone help me please? [code] #include <stdio.h> int main (void) { …

I have been working on a basic accounting program, the accounts were supposed to be stored in a array, but I never got that part of the program working. Is there anyway I can get a sample of hash code that would help me understand what I need to do? …

Hello every1 I was making this program of a phone directory to store contacts and all their information in C. I made use of structure and then copied the data of the structure to a file. the structure is [code] struct phdata { char name[20],add[20]; int phno; }ph[20]; [/code] the …

I have to create a matrix in c from microarray data that so I have to read each string line wise and compare they are related or not. help me....[b]***[/b]

Hi , this one is with respect to C. (i) when we use array an array index always starts from zero . is it a standard one? or compilers are implemented that way? if compilers are implented that way they must have followed some standard. (ii) the array name cannot …

If I run the program, and select q, it will quit correctly. If I select e it goes to the edit menu [B]but prints it twice[/B]. If I then select q it goes to the main menu [B]and prints the default case, "please select from menu", then prints the main …

Here is the problem:write in saparate function without using global variable 1/(function input)enter N in the range [0,20], then enter N numbers 2/(function display)Display N numbers in 2 columns Here is my source code [CODE=C] #include<stdio.h> #include<conio.h> void Input(int *p,int n) { int i; do { printf("Enter N numbers u …

The purpose of the program is to take a position and count how many "pixels" are in the "blob". If there is no "pixel" aka the value is 0, the blob number is 0. If there is a pixel, the blob_check function recursively checks the surrounding cells for "pixels" aka …

In the title I was going to write (not C script) but they are essentially the same I think. My bad, anyway... I recently wrote a some SH scripts to manage lines of text in a separate txt file. Now my new assignment is to convert the whole thing to …

At least for me it is:) This is an assignment problem and I can really use some help! [B][U]INTRO TO PROBLEM:[/U][/B] So the problem is a basic logic problem, where I'm sure you're all familiar with... From my assignment page, the problem [CODE]Imagine that you have 2 jugs, a small …

Hi, I am new to this site. Can you please help me with this. I have written a C program and i m getting the following errors 1) " 'puts' was not declared in scope " the same error for 'gets' and 'itoa' command...i have included stdio.h,string.h,stdlib.h,math.h as the header …

Hi all. Just a simple question but I SERIOUSLY need some help from you guys for my programming assignment. The assignment given was water jug problem. Now my question is, does C allow for the creation of dynamic array during a recursion? Suppose I have another function, which returns a …

[B]This is just a linked list program for those who need help understanding the fundamentals. Put comments if you find some bugs. The program is about maintaining a student database (their roll number and their age) I've used Turbo C++ 4.5 as the compiler[/B] :icon_cool:

hi please can any one help me in my shell project like this : Develop a c program which serve as s shell interface that accepts user command and then executes each command in separate process. The shell interface provides a command prompt ( sh> ) after which next command …

Hello Im trying to compile the following code but I get the error "left operand has incompatible type" because of the line: test2_2_U->Out2= test2_2_U->Out3; I have been looking through the forum but I couldnt find a hint what Im doing wrong. Any hint is appreciated. Thanks Thomas [code=c] static BlockIO_test2_2 …

i want program for round robin in c

hi all!!, can somebody help me?? I need to do a program that scan a decimal, transform it to binary and check if it is palindrome or not and print "palidrome" or "not palindrome".... i can only use functions and cant use arrays or anything else! can somebody help me??? …

So everything in my program works except for the main itself. The program is supposed to take in a file provided through standard input and print out the descending order of words followed by the frequency that they occur. I can do this individually line for line but am having …

Hello, If I want to say compare a line at a given line number to another line at a different given line number how can I do this? I know I could iterate through the file and store the lines into a data structure and perform comparisons that way but …

I am having a slight problem implementing this code. What I need to do is take a list of 16 unsigned characters and permute the bits according to IPTable. 0 in IPTable refers to bit 0, 1 refers to bit 1, etc. Here is my code which isn't working. [code=c] …

Hi, I want to make a program that reads a string. But I would like to read only characters, neither numbers nor special characters(@,#$%^&*()!). Also, no spaces between characters. [CODE] #include <stdio.h> #include <string.h> char *enter_a_string(int maxcharacters) { char *ptr; int len; printf("Enter string : "); char array[50]; do{ scanf("%s",array); …

Hi Anyonem, could you please explain clearly about the order of evaluation of increment, decrement operators in an expression in C? Thanks in advance..

I'm trying to create a simple server that starts a new thread for each new client that connects. I know I can use fork(), but I've heard that threads are more efficient. Also I have some global queues, so if I used fork(), each process would get their own version …

now I have never posted before so I hope this is in the right spot/format.. this problem is driving me insane. I need prove the Goldbach conjecture that is, "every even integer n > 2 is equal to the sum of 2 prime numbers." Then with a starting point and …

Hello, I'm trying to compile a program related with serial communication via RS232. I've found this program at microsoft page [url]http://support.microsoft.com/?scid=kb%3Ben-us%3B39501&x=9&y=11#top[/url]. When I try to compile this same program in Dev C++ editor the following message appears: bios.h: No such file or directory. Please, help me about what can I …

im new at C, actually just started programming in general, and im having a good amount of problems with this program. [code=c] #include <stdio.h> int main(void) { char vehicle; char car; char truck; int hrsn, minn; int hrso, mino; int time; int rt; int amo; printf("What time did you park(military …

Hi experts, i have this line of string: a1,b2,c3,a2,b1,c2,a3,b2,c4, from this line,i want to load into a string array like this: array[0]=a1,b2,c3, array[1]=a2,b1,c2, array[3]=a3,b2,c4, seriously i have no idea at all.ive done sumthing but looks like rubbish.i really hope dat u experts can help me. thanks for advance [CODE] void …

Is codeblocks an ANSI compiler compatible with gcc/g++/gpp (the GNU C/C++ Compilers)?

I'm supposed to get a 4-digit number from the user, convert it to binary (and hex), then print it out. I have absolutely no idea where to start. I know the algorithm; taking the number, diving it by 2, repeat until the number reaches 0 and the remainders of everything …

I was told once that If I wanted to know what functions were available in a given header that I needed to open a header file and look. code /* * stdio.h * This file has no copyright assigned and is placed in the Public Domain. * This file is …

for novices: what is' freopen()' function in C language and how it works?...thanks

i have a problem in which i have to remove char from strings by sending one string and char ata time to a function. in the below code it works fine for first string but for each successive string initial characters are not passed ..like for second call first chatcter …

helllo last day i did program related to recursion that is factorial of numbers i red lot of books in my library but i found only this program only in every book. i also thought lot on recursion but i did not find any more program please can anybody tell …

Hi all, How to do socket programming in C.I need to control an external device through TCP/IP or UDP/IP so that when I send a query the device should be capable to respond.

//The below mentioned code is not working on my C compiler.The //errors im getting is :(1)Extra parameter in call to_ inport b_. //(2)Too few parameters in call to "outport".(line 25) //(3)Not an allowed type(line 25) [code=c] #include<stdio.h> #include<conio.h> #include<dos.h> void main() { char data; int choice; clrscr(); printf("Enter the choice …

I need help understanding julian dates. I am trying to create a program using julian dates where user enters month & year and show the calendar of that month. I especially don't understand the "int toJulian()"... here is what I have so far: [CODE] #include <stdio.h> #define START 1900 //fixed …

I'm looking for code to inject code into a webpage at the specified location. Can we do this using winsock hooks. Can somebody help me with this. I need this urgently:confused:

[CODE]#include <stdio.h> struct poly { int len; int arr[]; char *name; }; int main() { int i; struct poly p; p.len = 45; p.arr[3] = {1,1,1}; p.name = "Josh"; printf("%d",p.len); for(i = 0; p.arr[i] != NULL ; i++) printf("%d",p.arr[i]); printf("%s",p.name); return 0; } [/CODE] I tried to make a simple …

[CODE]include<stdio.h> void main() { int i=5; int c; c=i++ + ++i + i++ + --i; printf("\n%d",i++ + ++i + i++ + --i); printf("\n%d",c); }[/CODE] The o/p that I'm getting is 31 23 while my friend got 34 20. Also why are the 2 (printf ' c 'and printf 'expression') values …

Hello All! I have been working on a network design problem and am having a problem in the following part- What I am trying to do here -- { for every set of edges (a,b), { for all arcs (l,m) assign length of -- arc [l,m] = edge [a,b][l,m] shortest_path …

Can somebody please explain this problem to me? A computer has 20 bit instructions with 8 bit addresses. Suppose that there are 12 two-address instructions. How many 1-address instructions are theoretically possible? Would the instruction set be set up like this? 0000|00000000|00000000

hi, unfortunately i need a bit of help with a config for a program that an ex-employee of ours wrote. Basically, the program verifies itself on a website and verifys one specific type of bluetooth hardware is connected. we have recently changed hardware suppliers and need to take the requirement …

Hello, I have a program which searches for (using binary search) specific word in ordered list and counts number of comparisons it makes until it finds the target! My problem is: how can I count average of number of comparisons? Here is how searching function works: [CODE] int binary_search(char *array[], …

Hi, Could anyone please explain how the memory allocatio is done in case of double pointers?

i need 2d array programm

hello i am a student of sgrrits dehradun doing bca now a days my pointers chapter is going on its difficult to understand but mostly i did it but i want to know that how it is use ful for us in the c. i only find its 1 benefit …