[c] Forum Topics

We have two arrays .merging them is simple.i want to know how can i sort then after that without declaring a single memory after that....

hi,i am new to C i am constantly getting the error "Segmentation fault" and i dont know how to deal with it. I can't find an error in my code. [code=c] #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #include <netinet/in.h> #include <arpa/inet.h> #include <pcap.h> int main() { FILE *ifile,*ifile1; …

Hi all, when I declare an array: [CODE]datatype array[Index];[/CODE] what's max value of Index ?

Hi Guyz, Here is a really tough problem to solve. Anyone can help out? You need to encode and decode a message in a parallelogram matrix. Eg. If input message is, "This is a problem" then you must put it inside a odd order matrix whose order is determined by …

I wrote the following code for testing the functionality of malloc() . The Code is compiled using GCC and executed with no errors. #include<stdio.h> #include<stdlib.h> int main(void) { char *str; str=(char*)malloc(4*sizeof(char)); printf("Enter string"); gets(str); if(sizeof(str)>4*sizeof(char)) {printf("Out of Memory"); free(str); str=NULL; } else{ printf("\nsring entered=\n"); while(*str) { printf("%c",*str); str++; } free(str); …

my code should expand the binomial from second to the tenth power using looping, conditional, array statements cprogram. I must input the value of a and the value of b in the binomial: ( ax +b ) example : input: (1x+2) output: (x^2 + 4x +4) help me please.

[CODE] for(i=0;i<n-1;i++) { for(j=i+1;j<n;j++) { if(a[i]>a[j]) { temp=a[i]; a[i]=a[j]; a[j]=temp; count++; } } } [/CODE] [CODE] void select(int a[],int n) { for(i=0;i<=n;i++) { k=i; min=a[i]; for(j=i+1;j<=n-1;j++) { if(a[j]<min) { min=a[j]; k=j; count++; } else count++; } a[k]=a[i]; a[i]=min; } } [/CODE] which one is selection sort???first or sec??

hey dudes pls help me on this. My program is crashing on the following piece of code When i make 1 recurssive function to work, the program works without crashing. So I would really need help in spotting the mistake I have done. Incase if you want to know what …

I have declared a global variable. But when i assign the "i" in the loop as the function parameter, the global variable does not chang. It seems that it creats another variable "i" and assigns it to that "i". Is it possible once i have declared the global "i"?? I'm …

Hi, Friends! I am doing my last year term project that needs me to use C and write a sudoku game. However, I don't know how to write the check part, can some of you help me a bit? Here is my code: [CODE]#include<stdio.h> #include<stdlib.h> #include<time.h> int x,y; int matrix[9][9], …

Hello everybody, i make a simple calculator with C. When I compile it, the compiler didn't show error but when I run my program the result is wrong... This is my code: [CODE=c] //////////////////////////////////////////////// // Calculator // // Crated by : Invecta // // Thanks to all members of komunitas-bsi.com …

Hi, I am getting seg fault when trying to run the code. I don't understand where I made a silly mistake. Can someone help me out please [code] #include<stdio.h> #include<string.h> void xstrcpy(char *, char *); int main() { char *a = "Hello World"; char *p; xstrcpy(a, p); return 0; } …

this program is challenging any ideas program should read the commands in sequential order, process them, perform the necessary calculations, and then print out the results in a neat, readable manner, both to a file and to the screen. Details The first line of the file contains two characters giving …

this program is very chalenging and i was wondering if you could provide some ideas as how to solve it. You are required to simulate the trajectory of a 60-ft long test rocket. Engineers predict that under the current wind conditions, the height of the rocket at time t is …

Hello all, I have a question: What are the advantages & disadvantages of the circular linked list compared with: a. Usual linked list b. Doubled linked list Although the implementation of the usual list functions & the circular list functions are similar…when do we have to use it?? or in …

Hello to all and thank you for your attention. I need to do a few programs using Turbo C 3.0, but I have a problem when I use it on my notebook (running on WinXP SP2). It starts OK: it goes into MS-DOS mode (fullscreen) and all seems good, but …

I am a brand new programmer (took a semester of it during the winter at college) and it really kicked my butt. I want to major in computer science, so i know that i'll be taking a lot of programming classes and will need to better all of my skills. …

can any one give a slight hint about the alogirthm to evaluate a prefix expression using queue.i tried a lot bt now atthe dead end,

Please heLP me in my finAl pRojEct pLLZz,,guyZz!!!All about C program in quincy that reads the year and day of the week of the first day of the year.Then the progrAm prints the calendAr for that year.Allow the user to pause for each month of the year.Note also for the …

Where is a good source for learning Design Patterns? Has anyone heard of what is called "Gang of 4" and "Model via Control"?

I am fairly new at programming in C and I'm having problems with writing a program which combines n objects from n different groups and prints them; for example objects a1 a2 a3from group A with b1 b2 b3 from group B and c1 c2 from group C; both group …

In my computing class we have got to make a program which outputs the following "XXXXXXXXXX YXXXXXXXXX YYXXXXXXXX YYYXXXXXXX YYYYXXXXXX YYYYYXXXXX YYYYYYXXXX YYYYYYYXXX YYYYYYYYXX YYYYYYYYYX YYYYYYYYYY" We have to create a function and we can only use if and loops. but I'm having difficultly doing it outside of a function …

Hi everyone, I'm on FreeBSD. and I don't know if the C language is the good one, but anyway, I'm here to ask question. So, I would like to make a kernel module for my FreeBSD that detect my webcam , initialize it and store, in real time, the RGB …

I have the following code for DDA Line Algorithm in C :- [CODE] //DDA Line Algorithm #include<stdio.h> #include<graphics.h> #include<conio.h> #include<math.h> #include<stdlib.h> #define Round(a) ((int)(a+0.5)) void linDDA(int xa,int ya,int xb,int yb); int main() { int gdriver=DETECT,gmode; initgraph(&gdriver,&gmode,"E:\\TC\\bgi"); linDDA(10,20,200,100); clrscr(); getch(); return 0; } void linDDA(int xa,int ya,int xb,int yb) { int …

HI all ! I am looking for C source code for a simple control flow graph generator.This generator should take input as C,java files and make nodes for If-else,switch statements,for & while loops.I just need a output in text form no visualization required.Can anybody help Thanks

[CODE]#include<stdio.h> #include<string.h> int count(char string[]); void main(){ int i; char string[1001]; printf("String: \n"); gets(string); i = words(string); printf("No. of Words %d", i); } int count(char string[]) { int i, j, k; for(i = 0; i < strlen(string); i++){ if(string[i] == ' ') k += 1; else j += 1; } …

I have a while loop reading names from a file and placing them in an array. When I print the contents of the array, it prints the last name that went through the loop, so I'm assuming that as the loop is progressing each time the names are being rewritten. …

I wanna write a code which would add the digits before decimal and after decimal. eg:- 12.22 would add upto 3.4 , 491.941 would give 5.5 [CODE] #include<stdio.h> #include<conio.h> #include<string.h> void main() { double a1[5],a ; //array of 5 numbers int b,len,i,sum=0,cnt = 0; char ch[10]; for(i = 0;i<5;i++) // …

Hello guys, I am basically a .net programmer. I have a project in mind which is on core sound processing. But I want to do it in core language like assembly or c. I need some reference web sites or book names where I can found core format about sound …

#include<stdio.h> #include<stdlib.h> void show(const double a[], unsigned elements); int main() { const unsigned elements=10; const double a[10]={0,1,2,3,4,5,6,7,8,9}; printf("\t\tArrays and Pointers\n\n"); show(a,elements); return 0; } //FUNCTION 1 void show(const double a[], unsigned elements) { unsigned x; printf("\nValues in Array are :\n"); printf("[%u]:",elements); for(x=0; x<elements; ++x) { printf("%d",a[x]); } printf("\n\n\n"); } Output: …

[CODE] #include<stdio.h> #include<conio.h> void main() { int num[50],i,i1,j,temp = 1,cnt = 0; printf("How many elements "); scanf("%d",&i); printf("Enter the elements "); for(j = 0;j<i;j++) { scanf("%d",&num[j]); } i1 = 0; j=1; while(i1 < i ) { for( ;j<i;j++) { if((num[j] < num[i1])&& (i1<i)) { temp = num[j]; //algorithm for sel …

Hi there, is it possible leave a scanf blank? For example my code is: [code=c]scanf("%s%s",&a,&b);[/code] After entering the string for "a", I would like to leave "b" blank so I press enter but it just jumps over to the next line, is there a way to leave a "b" blank? …

I'm supposed to create a program that reads in the name of a file, then takes the names of students, which are listed (last, first, m) and concatnate the first with the last (firstlast) and add .dat at the end for each student to open a file with and unknown …

good day guys. i was studying a particular block of code and came across an operator: ->. im not exactly sure what it does. i found some notes saying that ptr-> is equivalent to(*ptr). for the life of me i just cant see how that applies here. care to help? …

Hello. im having a little problem with file inclusion. im getting the following errors: error LNK2005: "long * addresses" (?addresses@@3PAJA) already defined in rere.obj fatal error LNK1169: one or more multiply defined symbols found My 3 files are as follows: mainFile.c [CODE]//Program for a singly-linked list #include "def.h" #include<stdio.h> #include<stdlib.h> …

hi! i'm a beginner in using turbo c can anyone help we with these problems? help will be very very very very very much appreciated C PROGRAM # 13: INCLUSIVE VALUES Write a program that asks the user for a starting value and an ending value and then writes all …

Okay so the object is to print a wheel based on the user's input of the inner and outer radii. I've written a program that checks to see if the distance of the x and y is within the radius. However, i get some weird stretched out tire. If anyone …

Can any one help me to optimize this code. Or possible to alter and make it more simple The out put i need to get is [CODE] 1 212 32123 ....... [/CODE] this is the code [CODE] main() { int i,j,k,n=4,val,flag=0; for(i=0;i<n;i++) { for(j=1;j<n-i;j++) putchar(' '); val=i+1; flag=0; for(k=0;k<2*i+1;k++) { …

Hi all, I'm making a client server program in Linux. I use fork() to create a child process of the server to handle a new client. When a client disconnects it should kill the child process. At the moment the program is able to kill the fist client(server) that connects, …

how to insert a database into c++

Please help me translate this nested for loop to assembly [CODE]for(int i=0, k=0; i<8; i=i+4, k++){ for(int j=i; j<=i+4; j++){ temp[j-(4*k)]=binary[j]; } }[/CODE]

I'm in a rough situation, i'm currently re-reading all of my textbooks to assist me with this work, however I am really in a rough spot being time limited I really want to get somewhere from what I have (and fix what I have). What I need to correct/add. -I …

pls tell what is the difference between this two 1)taking a initger (or any fundamental data type) pointer in the main function and then send it to some funtion as parameter. int *p; function(p); 2)taking a intiger and sending its adress to any function. int p; function(&p); will both do …

I'm trying to write a matrix multiplication program that takes in an int N on command line, creates two NxN matrices A & B, randomly populates them with ints, and then computes the result of multiplying A and B. I wanted to avoid malloc, but the first version started segfaulting …

Can some one please recommend me a link or the code for converting binary to decimal, hexadecimal and octal. Another for converting octal to binary, decimal and hexadecimal. Thank you and please help. I really do need it. Again, thank you and have a nice day! :)

I can't get strcmp() to return 0 with the following code. please help.. [CODE] char quit[10] = "q"; scanf(buf, ""); fgets (buf, 100,stdin); fflush(stdin); if(strcmp(quit, buf) == 0) { printf("Quiting program\n"); ...[/CODE] when I type 'q' into the command line it should enter that if statement, but it doesn't.

Hello everyone...!! I want to know what exactly is the concept of Abstract Data Types and how is it related to data structures...? I tried some standard books on this topic but found them too complicated for me to understand Thank you

Hello Everyone at DaniWeb! Thanks for allowing me to be a part of your community. A little about me...I am a full time college student taking Electrical Engineering classes and trying to learn C/C++ programming at the young age of 49. I retired from the military before most of the …

Hi, this is my first post and I need your help, I need examples of how to use methods in c, that are simple, for example do any math operation with the variables that are part of the class. And, if you can, compare the method of the class with …

Hey everybody, I saw the thread for this in c++ but I want to know this for c language. I want to write a program in c that lets me calculate the heap memory size available to malloc function as well as the amount of size currently allocated. Can anyone …