[c] Forum Topics

Hello guys, i have a simple doubt. One problem I am not getting. Read a text file and add a line at the end of it. '-' Does anyone have any idea?

Hello! This is mainly a curiousity question, I may apply it to something in the near future though just as an added twist... :D So essentially I want to figure out how a progress indicator is created in the shell. For example with wget or something you may see a …

Write a C program to create 3 child processes which read from 3 different files and write to the parent process using pipes. Each child should wait a random amount of time (3 -10 seconds) between writing each 50 characters. The father should read from pipes and write everything he …

Can some one tell me that global variable are static bydefault or not?

The part for(int i=1; i<n; i++) { x[i]=sqrt(y[i]*i); cout<<"x"<<i<<": "<<x[i]<<endl; } isn't working wll, for some elements the result is non, i thought that i because the numbers are complex, but not with include complex i get the same resut.. can anyone help me #include<iostream> #include<math.h> #include <complex> using namespace …

i need help to make this program please help me Problem Statement: Write a program using class(constructor, destructor, other member functions) to find the frequency of letters (small and capital alphabet or digit) from your student id character string. For example, frequency of letter ‘4’ in the string of a …

**I have a struct of students that written to a file all what i want is intial the array with values from the file using any method , the aim is to put the struct values into array to help sorting process the code gives me punch an kick any …

Hello! I have a exercise about matrices. here is the question: is given a square matrix [M] [N] which determines the amount of each column. Thank u!

HI i got stuck in this program please help me and provide me the source code,..

Can someone please tell me what is wrong with strcmp? I don't understand why I am getting a segmentation fault when comparing array of strings and string. char *strings[100]; char nam[100]; int g = 0; while (fscanf(pFile, "%s %d", nam, &val) !=EOF) { strings[k] = nam; printf(" string is %s …

** # i am tring to merge two array but every time its display first array proparly but in second array its only display last element....thx....# ** #include<stdio.h> #include<conio.h> void main() { int a[10],b[10],i,j,c,d,e; clrscr(); printf("how many number in first array="); scanf("%d",&c); printf("how many number in second array="); scanf("%d",&d); printf("\nenter …

So here's my problem I have inner structure inside of client. How can I know while reading from txt file that I'm reading item data or client data for my list? struct item { char item_name[30]; char item_state[30]; float item_price; char item_status[30]; float item_price_if_not; struct item *next; }; struct client …

Can someone please tell me the the maximum and minimum of int, long int, long long int, double, float, and anything bigger than that? And also how to calculate this?

Here is the mex code I wrote to read in a tab-delimited file. The mex file got created but it causes my MATLAB to end abruptly and give the following error. Can anyone help me where I am going wrong? Please let me know if any further information is required …

I am unable to convert my C file to mex file. Here is the C file I wrote to read in a tab-delimited file. The C program in running, but I am not able to successfully convert it to a mex file. I have also pasted the mex file I …

I am trying to read in a large tab-delimited file which has 16 columns and about five lac rows. The first column is a date string. TThe second contains integers and so on. However I am not able to get the arrays correctly. Also how can one ignore three header …

**i am tring to this way but answer is not write....thx...** #include<stdio.h> #include<conio.h> void main() { float a[10],m; int i,j,n,t; clrscr(); printf("how many number in array\n"); scanf("%d",&n); printf("enter %d number\n",n); for(i=1;i<=n;i++) { scanf("%f",&a[i]); } for(i=1;i<=n;i++) { for(j=i+1;j<=n;j++) { if(a[i]>a[j]) { t=a[i]; a[i]=a[j]; a[j]=t; } } } if(n%2==0) { m=a[(n/2)+((n/2)+1)]/2; } …

A complete C implementation of Linked List...tested on Linux GCC

I'm trying to make make project for my programming class. All that's left is deleting elements and editing elements. Basicaly my question is how would I do it for my inner list? Or how would I delete single client from list? Would I first have to free the client's inner …

hi, can you help me with my code? actually its running but the total price of products bought is not displaying, can you help me with this one? :( #include<stdio.h> #include<string.h> #include<conio.h> int main(void) { int pno, choice, product, jf=12,d=10,l=107,c=2,cf=22,n=9,b=19,ap,a,total,disc,i,ctr,nSelection; char name[50]; char cname[50]; char y; char x; float price,qty,tax,dis,bill,dprice,ttotal; …

I am trying to use fscanf to read a file. When fscanf hits a newline I would like it to do one thing and when it hits a space I would like to do something else. Is this hopefully possible? char nam[100]; while (fscanf(pFile, "%s", nam) !=EOF) { if(space) //do …

Which file readers in C can handle reading an inconsistent file? Sometimes the file is "word number" and other times it is just "word". Like this. bob 456 echo cat dog 1101 peacock 300 This is what I tried with fscanf. I am surprised it worked. I didn't think fscanf …

Im writing project for my programming lessons and right now got some problems with output from function AddItemToClient, basicaly its mainly with date, in first node its correct one but after this its just random. Could someone explain what I'm doing wrong here? #include <stdlib.h> #include <time.h> #include <string.h> #include …

I've seen a few different ways to convert a string to ascii and I was wondering what is the best way and why. char str[100]; int i=0; printf("Enter any string: "); scanf("%s",str); printf("ASCII values of each characters of given string: "); while(str[i]) printf("%d ",str[i++]); ----------------------------------------------------------------------------- int main() { char *s="hello"; …

I don't know what's wrong but the succeeding strings are not properly read by fgets. else { initArray(word1); //first string fgets(word1, 29, fileIn); printf("word1: %s\n", word1); len = strlen(word1); if(word1[len-1] == '\n') word1[len-1] = '\0'; while(!feof(fileIn)) { //succeeding strings in next line initArray(word1); fgets(word1, 30, fileIn); printf("word1: %s\n", word1); len …

Hi everybody, I would need and advice. I work with binary tree in language C and I wanna to save data from binary tree to file. I try to make similar way to C++, but proposed code notice failure. How I modify it to put it into operation. that's the …

I have following problem: I have 2 structures: Clients and items for example structure clients would have name and list of items from another structure asigned to this specific name I have to do this with singly linked lists. I simply have no idea how to do this would be …

Sir How can i add my own function in C standard library so pls can u suggest me about it........

Here is my question: Write a program that reads from the keyboard an initial balance b, the annual rate of interest r and the projected balance you want to reach. The program should then display the number of monthe it will take for the balance to reach the projected balance. …

ok here is the problem. im trying to send data from UART of ATMEGA 32 to my PC on hyperterminal following is the program im using: #include<mega32.h> #include<delay.h> void usart_init (void) { UCSRB = (1<<TXEN); UCSRC = (1<<UCSZ1)| (1<<UCSZ0)|(1<<URSEL); UBRRL = 0x47; } void usart_send (unsigned char ch) { while(!(UCSRA …

Is there a way to read a file character by character for chars and the number set for numbers? bob 4567 joe 39083 sara 4239824 That is my file while ((c = fgetc(pFile)) != EOF) { //my work } I know this works on my chars. This won't read numbers …

Qn. Given the following pseudo code, write a program that executes it. (20 marks) read a read b compute x=a*b+2 compute y=a-b total=x2+y*(x+a)*(y-b) print total Solution:vv

Can any one help me , i need an algorithm of the fast fourier transform without using fft function .

Please can anybody explain me the following things below:: 1.What is a hashmap 2.Its use 3.What do we do to avoid collisions....

Hi, I've been testing about converting infix to postfix expression. I've made the code and it compiles. My problem is it stops working when I run it. This involves the use of stack and arrays. I just call the method polish to get the strings infix and postfix, and to …

Below is my code for printing prime numbers up to a given input by user. However, my calculations are not working correctly and my output is printing twice. Any idea? :sad: #include <iostream> #include <cmath> using namespace std; void prime_num(int); int main() { cout << " Enter a number and …

Hello Friends, I am new to c programming. I want to create data structure for client server communication. I can simply transmitt simple char to server and return it back. My requirement is to have dynamic number of variable in client side i.e my client should be able to transmitt …

Hi, i want to create a program like below Write ‘C’ language program for maintaining a phone book. Your Program should allow user to “ADD”, “DELETE”, “MODIFY”, “SEARCH”, “Display All Records” and “COUNT” records. All data should be stored in text file and should be available whenever the program is …

I want to self similar traffic (by using pareto distribution) in Simulink.

I have this program,how to find reverse numbers? #include<iostream> #include<fstream> #include<string> using namespace std; const int array_size = 10; //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ //function to enter the number choise1/// to "&" dieuthinsi noumerou void get_numbers(int num_arr[array_size], int& numbers){ int count; cout << "How many numbers do you want to enter? "<<endl; cin >> …

Problem: A salesman travels from one to another state. he may visit either n=2,3,4,5 or 6 cities of punjab. For every number of cities he may adopt different routes. Some routes will be longer and other rwill be shorter. We neeed to design a C++ Program. *TO DISPLAY EACH ROUTE …

#include <stdio.h> #include <stdlib.h> int buku; int jum; int total; char member; int main(int argc, char *argv[]) { printf("\n---------Tarif Peminjaman Buku-------\n"); printf("Member Rp.5000.oo,-\n"); printf("Non-Member Rp.15000.oo,-\n"); printf("Regist Member Rp.30000.00,-\n"); printf("-------------------------------------\n"); printf("Silahkan Masukan Pilihan Anda\n"); printf("Jumlah Buku : "); fflush(stdin); scanf( "%d",&jum ); printf("Apakah anda member [Y/T]"); fflush(stdin); scanf("%c",&member); if (member !='y') …

Console.WriteLine("Total Pay:{0:C}", pay) Why {0:C} for?

I am using the C code with java code in JNI framework (Netbeans).I am getting the following error: Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: C:\Developers\DLL_Key\MainDLL.dll: %1 is not a valid Win32 application Is there something wrong with my c compiling tools? I am using mingw-builds\x32-4.8.1-posix-dwarf-rev5

I've been given the following instruction: *Add a new method to the library that applies a function to every value in the tree. (This is an iterator method for trees.)* int bst_char_iterate(bst_char *t, char (*fun)(char item)) *NB: The BST property will only be preserved by this method if the function …

hey all!! i m making a program in which i want to search record by name, year and, enrollment no. my code is working only for the first record of a file , its not usfull for second record or any record after the first record i've tried toooooo much …

A program which has the main process as Director process, which reads a file containing marks of all quizzes of all sections and creates x number of Manager processes. Each Manager process will take care of solving for a section. Each manager process will create y number of worker process …