15,552 Topics
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| | i want to delete the entry of a student using its roll no....its not working It is my earlier program and i just modified it but now i am not being able to perform deletion operation..if you will help me my project will get over.. [icode] #include<stdio.h> struct student { …  |
| | Hi all, this is my first post! I'm pretty new to C and maybe this is a dumb question. I've a function that accept a string as a parameter for modify it but it doesn't (I'm sure there is some logical mistake with pointers): [CODE=C] void doSomething(char *string) { string … |
| | PLZ HELP ME WITH THIS CODE...I HAVE GIVEN THIS CODE SO MANY TIMES BUT NOBODY IS ABLE TO CLEAR MY ERROR.... 1.DISPLAY IS NOT COMING ONLY LAST VALUE I ENTER IS DISPLAYED 2.DELETION OPETATION .............AND YES I WANT TO USE LINKED LIST....IF ANY 1 KNOWS IT TELL ME............. [ICODE] #include<stdio.h> …  |
| | Hi everyone, I am having trouble using enums in structs. I am developing for the linux platform, with the gcc compiler. Below is an example of the code that produces the error. [code=c] enum Day {Monday=0x01, Tuesday=0x02, Wednesday=0x03}; typedef struct { int numberofDays; Day weekday; } Week; [/code] When I …  |
| | I want 2 convert a C prog. into HEX code. We are using microcontroller IC AT89C52. |
| | [code] #include ”functions.h” typedef struct { int x, int y, int z; }Model; int main() { Model PARA[100]; PARA=malloc(sizeof(struct Model)); myfunction(int A, int B, int C, PARA); return: } [/code] In another file, I define “myfunction”: [code] void myfunction(int a, int b, int c, Model *para) { a=b=c=10 ; /*can … |
| | I have this task and i dont know how to do it, any help will be appreciated I want to do it in C language under linux Evaluate Boolean expression given by the user by using tree data structure. An example of the Boolean expression is ((X1 * X2 * … |
| | Hi, i am stuckon this particular assignment. I will appreciate it if you guyz help me out on these problems.............. 1. Write two functions Max( ) and Min( ) where • max() returns the maximum of two integers • min() returns the minimum of two integers • Each function takes …  |
 | is there any way to synchronize two processes after fork() command. if i had deal with threads i know i can use pthread_mutex to make them work one after another. can i do so with processes ? |
| | [code=c] main( ) { int i=10,j=20; printf("%d%d",&i,&j); return 0; } [/code] When i executing this code: I got the address values like -12, -10, -20 Is it the address are in negative values or I am doing a mistake in the program. please give the solution it's urgent. |
| | i am facing problem when i am trying to get input...my input is not being taken correctly ... #include<stdio.h> struct student { char name[20]; int rollno; struct student *next; }; void display(struct student *first) { struct student *ptr; ptr=first; printf("\nCurrent list:\n"); while(ptr!=NULL) { printf("Name:%s\nRoll:%d",ptr->name,ptr->rollno); ptr=ptr->next; } } void delet(struct student … |
| | Hey Guys, I am new to C programming and I got a task of storing hex dumps in character array and then use them as a string. I use the sprintf function for the job but it is giving me incorrect results. Please help me out. I am writing a … |
| | I am making a C program to send AT commands to a mobile phone from my pc. In that, I want it to dial a number but after a delay of some time say 10 minutes. How should I do this(I am using WriteFile command to send the dial command … |
| | sorry, my eng is not good that much I am trying to run this program I am getting a strange result when I press 'a' through keyboard switch is running twice automatically for first time it is going to perfect case then second time it's going to default case [code=c] … |
| | when i am entering name and roll no only the last name and rollno is displayed and rest is not....i unable to detect where i went wrong and also ...deletion operation is also not working.........and ya i want to try this using linked list...plz i have to do this ne … |
| | Hi, i am little confused in usage of strtok() syntax. Basically , i extracted the source code of a webpage using Java and now i have to remove all the extra tags inside the html page so i can have clear text. For example a simple HTML page is like … |
| | Hello, I'm trying to make a code that acts as a simple menu for a number of programs. What I was wondering was how do I include the .ccp files and run them in the menu program. Here's what I have so far: [code] #include <stdio.h> #include <stdlib.h> #include "1.cpp" … |
| | Hi All, I am using the message queue (msgsnd() call) in my c program binary to send the message to the parent along with priority. The call hangs in between after I send the message to the parent. I have an error check if the msgsnd call fails. But the … |
| | I do not know if this has ever been asked in C before but I have a floating point variable like this: [code] while (fCost <= 0.0) { printf("\n\tKudler Fine Foods 'Sales Tax Calculator'\t\n"); printf("\nPlease enter your sub-total:\n"); //allows customer to enter sub-total scanf("\n%f", &fCost); } [/code] note the variable … |
| | Hello. I have been reading this forum for quite some time, and this is my first post. I often have the need to dynamically allocate memory for arrays with multiple dimensions. In my opinion I find it quite ugly to litter the code with multiple for-loops and mallocs every time … |
 | Hiya fellas, I just made this Knight's Tour program, and wish to speed it up without making it non-brute force. So it shouldn't have any intelligence. I did most I could, and was wondering if you guys know more ways to speed this program up. First thing I thought about … |
| | First of all, thanks! I have a problem about the arrays of structure in C, the following is my codes: #include "system.h" typedef struct { int x, int y, int z; short *velocity ; float *wave ; } Modeldim ; void myfunction(Modeldim *submodel) ; int main(int argc, char *argv[]) { … |
 | Here is a quick and dirty tutorial for UNIX sockets. By no means it is complete but after reading it, man pages start making sense. Oops two seconds already wasted lets dive into the topic thanks to Delip Rao......:D:D  |
 | Hello, i am supposed to solve a problem using this Method. Can anyone pls tell me what this exactly is, and how does it work?Or maybe a link to a source ...? i'd be very thankfuly! Pls this is urgent.It's for my thesis! |
| | I have very good ideas about c-programing. But i have just programing simple experimental and ,learning stadge program like some data structures or experimenting codes. I want to know actually how to build a good, working , professional, APPLICATION. Please any one could help me by taking me to a … |
| | Hi, I use C-Free 4.0 editor for executing C programs. I have a Treap program that I obtained online which is organized as testtrp.c treap.c treap.h fatal.h When I compile the testtrp.c, which references treap.c it compiles correctly. However when I try to run it I get the undefined reference …  |
 | Hi, Probably a noob question but How would I find out the length of a file in bytes. within VB there is a LOF() command I can use once the file is opened. Is there an equivilant in C. Thanks for any help. pG |
| | i need a complete C program to draw a sin curve without any application and the output should be displayed in dos prompt. can anyone please help me  |
| | Hey, i'm trying to sort direct in a file. The problem is that when i read the first time an int from it,it works! doh. but when it reads for the second time, it doesn't. ( Neither the swap works. No signs of errors from the compiler. [code=language] FILE *fp=fopen("element.txt","rw+"); … |
 | Hey :) Damn I hate pointers in C :P Worse thing possible. Anything I post my code: main.c [code] #include <assert.h> #include <ctype.h> #include <errno.h> #include <float.h> #include <iso646.h> #include <limits.h> #include <locale.h> #include <math.h> #include <setjmp.h> #include <signal.h> #include <stdarg.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include … |
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