[c] Forum Topics

I am trying to store data from two variables in a text file .. and then try to get the data back and output it on screen but somehow the following program is not working as supposed to be. I first enter data in the two variables n1 and n2 …

Hi there, Well, having spent 20 years in the music industry, I have gone back to University studying a degree in Mechatronics Engineering, with a view to programming embedded software. So C is the language I am focusing on learning (and I am sort of just passed the beginner stage, …

I need to basically rewrite grep command: method is suppose to take an exact string and an exact filename as the 2 arguments grep<string><filename> then it has to search through the file for the string and print out the "line" and the "line number" the string is in. example #grep …

[CODE] #include <stdio.h> #include <stdlib.h> int main() { FILE *fp; char ch; fp=fopen("exp.txt","w"); while( (ch=getchar()) !=EOF) { putc(ch,fp); } fclose(fp); return 0; } [/CODE] I am using gcc compiler in linux mint This code is not working only exp.txt is created which is empty.

[code] main() { if() { if() { if() { something () /* something so that the program executes the last line means last printf without using goto ststement */ } } } printf("hello"); } [/code]

Hi everyone :) This is one of my first programs using C, so I am facing some issues. our professer asked us to develop a TCP socket (client/server) where the client sends lets say an ID,Name or Major and the server searches into a txt file and returns the line(s) …

I want to learn a new programming language, which I can use to create large applications such as operating systems, editing applications. I know it requires a great deal of understanding of contents, but I can not decide which language. it is either C or C++ need advice... :icon_eek:

I'm trying to write a function that gets an array, it's size and the number I'm looking for. The function should be recursive. That's what I've written, it doesn't work. I don' understand why. Suggestions are welcome. [code=c] #include <stdio.h> int binary (int *a, int n, int num) { int …

Well , I am trying to create a bees game as part of my assignment .. Now in this simple game I should use a text file .. and the text file is to create different game stats in different lines.. eg.. "10 (number of bees) 0 (number ofinfected bees) …

hi! I'm MCA 1year student. I want tree traversal program for given Alphabets not numbers.. Can anyone response my thread.. Thank U..

So I'm tasked with writing a subroutine to access a certain element of an array. When the subroutine is called, the pointer that points to it is [bp+1]. How would I make it so I could access say the 10th element of this array in the sub routine?

I keep getting the undefined reference error when calling a c function from c++ code: void proxy(char *str); In my funcs.h file, I use the #ifdef __cplusplus extern "C" { #endif wrapper, and include funcs.h in my c++ code. I also declare the function as extern "C" void proxy(char *str); …

Hay every one Hay everyone I need help I have project in subject programming languages about make one idea on two languages c and java . I have made it in java and c++ but I couldn't in c This is the code in C++ [CODE]// Link.cpp : Defines the …

I have the following URL which I want use to access the content in a remote Apache Tomcat server from a C-based client: [CODE]char url[] = "POST /myDir HTTP/1.1\x0D\x0AContent-Type: text/xml\x0D\x0AContent-Length:60\x0D\x0A\x0D\x0A<root><mygreeting>Hello, World!</mygreeting></root>\r\n";[/CODE] However, I get the response [B]"HTTP/1.1 505 HTTP Version Not Supported"[/B]. I have googled and found that this may …

Dear All, I can insert data into mysql db already via my C codes. The only problem now I need insert the time in this format "2011-12-11 09:01:02". How can I format this in my C codes? Thank you.

I am writing a spellchecker program and have some issues. First thing is that I need to make better use of the memory. My code iterates through a large dictionary file repeatedly. I know its better to read this into memory first then iterate through the block but I really …

i want to read parameters from a file. but the program reads all parameters as if they are zero.any help? here is the code [CODE] typedef unsigned long int WORD; unsigned long int parameters[2]; WORD pt1[2]; void readConfig() { char a[3]; FILE *p; p = fopen("config.data", "r"); if (p) //we …

Hay everyone I need help I have project in subject programming languages about make one idea on two languages c and java . I have made it in java but I couldn't in c this is the code in java [CODE] Class Link // Link.java // to run this program: …

I have to write persian (farsi) characters to a text file, but after writin when I open the file ,it's contents are unreadeable in persian and ther is some special characters pleaseeeeeeeeeeeeeeeeeeeeeeee help :-(

Something is not going right in the following code. I am taking an array of strings from user and printing at the same time. Array can have [B]noe[/B] no. of strings, as noe is entered by user. [CODE]#include <stdio.h> int main(){ char **p; int noe=0,i=0,j=0; scanf("%d", &noe); p=malloc( noe * …

Hi all, I have to check and give grades to some projects written in C. Do you know a free program which detects source code plagiarism ? I found CodeSuite but it asks me for key. Thanks in advance

I am currently in my first year of electrical and electronics degree programme. I would like to ask for assistance on how to go about starting this project. A little guidance from you experienced people would really help me to complete my project. Thank you in advance. DETAILS : -four …

What is the most efficient way to take input of a character array or string of 25 ASCII characters using scanf? They are not formatted, just a sequence of character. i.e. ABCDEFGHIJKLMNOPQRSTUVWXY One more point is that, after input I have to find a sequence of character within this string, …

Hi, i'm really stuck with this linked list and i feel tottaly out of my depth. Hopefully i can get it a bit clearer! what im trying to do is a print simulation with three priorities and im trying to make the linked list to act like the queue so …

Hi, there. I've been trying to get my program to work for several hours now and I just can't fgure out what's wrong with my code. It's about passing a variable between processess using pipes. Each process increments it M times. The program works perfectly when I use shared memory, …

I need a problem, i use PIC simulator to import2 numbers by serial port. First I send byte, 5 for example, then send sent 2 and in the third step I sent char for example *, and the result is 5*2=10. Everything is fine till I send larger number more …

Hello everyone, Im new in assembly language. I would like to ask your help to teach me how to convert the below C language into tasm language. thank you very much. #include <stdio.h> #include <dos.h> main() { unsigned int year; unsigned char month; unsigned char day; union REGS regin,regout; clrscr(); …

Hi guys, I have a problem with this question, where the amount is constantly $0 and at the end if the user enters Y/N it just closes without saying "Transaction Completed/Cancelled". Any tips on how to fix it? Thanks [CODE]#include<stdio.h> #include <iostream> #include<math.h> int main() { int numofbees; float price …

[CODE]int main(void) { int operations, i, operands; char *string_dig1, *string_dig2; // OPEN THE FILE FILE *ifp; ifp = fopen("bigint.txt", "r"); fscanf (ifp, "%d", &operations); printf("%d\n", operations); // MAKE MEMORY TO READ THE STRING DIGITS INTO THE ARRAY string_dig1 = (char *)malloc(sizeof(char)); string_dig2 = (char *)malloc(sizeof(char)); for(i = 0; i <= …

Hello, I've been having a lot of trouble with a variable type called "float64". I'm trying to create a do{}while loop to make the number count up each time. data is also defined as an array. [CODE]float64 data[1]; int i; do{ for(i=0;i<1;i++) { data[i]=data[i]+.01; if(data[i]>9.99) data[i]=-9.99; } }while('0'=='0');[/CODE] Any guidance …

Hello there,ihave given the assigment to make the c program to print the asterisks to represent the grades.. My question is , why the asteriks does not appear ? I think i got problem at the looping for asterisk.. actually my output should be like this : the graph such …

Hello. The title pretty much says it all. I would like to know if and how you can print a number (type is double) with the same amount of decimal spaces as the one you entered. If I enter 12.34 I would like the output to be 12.34 and not …

Hi everyone! I have a task that needs to be made in C in Linux. I use Kubuntu. This is the task: Process (coordinator) creates 10 working process (pool of processes). The working processes are waiting to be awakened by the coordinator, perform a job and wait again. The coordinator …

This is MPI parallel program running using putty software.. I've done some part but I got errors... :'( can anyone tell me what's the problems? I've done the serial part but I stuck in this parallel part....... [I attach smaller input because I'm having problems attaching the real input] I …

i need a answer of the above Q?

write a system program to create a file called myfile1 containing the letters of the alphabet followed the first one hundred integers. Write another program to open the file myfile1 and read it and print the contents on the screen/monitor (stdout). Its an assignment, please help!!

#include<stdio.h> #include<math.h> #include<conio.h> #include<time.h> #include<stdlib.h> #define LIMIT 100000000 //max value of n void main(){ double mypi,x,y ; int minus ; // 1 for pos., 2 for neg. long int m,n; time_t t; n = 0; m = 0; srand((unsigned) time(&t)); clrscr(); do{ n++; x = (rand()/(double)RAND_MAX); //pick a random X …

Hi, I can't figure out why this isn't working (it's part of a larger amount of code but I tested it separately and I still get an error): [CODE] int nrows = 5; int ncolumns = 4; int i; int **array = malloc(nrows * sizeof(int *)); for(i = 0; i …

Hello All. After couple hours reading posts here and all over the web, i wasnt able to find example of code to "rewrite it" my way. All i need is: 1. read the file (txt), 2. scanf for string, 3. compare each line for this string, 4. if found printf …

Hey guys, I am working on this square deal problem that I cant figure out. This is the problem: Input for this program will be two positive integers entered from the keyboard via scanf. The first will be an odd integer N in the range of 3 to 15. N …

Hello, I am trying to store data within a char in C. Different types of data will be used, for example, strings and integers. I have tried the following code: [code]char rawdata[4] = {0xfe, 0x01, 0x99, 0x42}; unsigned int *test = (unsigned int*) rawdata; printf("%u\r\n", *test);[/code] However, it returns the …

In file i have a text. Words form line to line dont raising. Word in line separate least one space.Spaces can be at line begining and ending, can be empty lines. Count how many words can be in real number. i need a function whitch can count words whitch can …

//================= konfigure LCD // porta za podatoci e PORTB sbit LCD_RS at RB4_bit; sbit LCD_EN at RB5_bit; sbit LCD_D4 at RB0_bit; sbit LCD_D5 at RB1_bit; sbit LCD_D6 at RB2_bit; sbit LCD_D7 at RB3_bit; sbit LCD_RS_Direction at TRISB4_bit; sbit LCD_EN_Direction at TRISB5_bit; sbit LCD_D4_Direction at TRISB0_bit; sbit LCD_D5_Direction at TRISB1_bit; sbit …

Hi.. can anyone help me.. I having problems in displaying the output read from an input file. when I run the code, it only display the output of the first character in the input file. Anyone can help me figure out the problem? & I'm using borland. [CODE]#include <iostream> #include …

hejsa, I just got a little problem.. [B]i only have one public ip.. but i need to host several websites over many local ip's..[/B] so, i need to forward the incomming requsts (from the public) to one of the local ip's.. based on the domainname.. so, [B]mydomain.com > my public …

The code below will printf out the no. of characters as 6, even if we enter only 2... [CODE] #include<stdio.h> #include<string.h> int main() { FILE *fp; char c; fp=fopen("random","w"); while((c=getchar())!=EOF) putc(c,fp); printf("\nNo. of characters = %ld",ftell(fp)); fclose(fp); } [/CODE]

I have to write for the program. If someone could help me to understand the problem?? The example of the MAC message would be very useful for me program the PIC to work as a Super Router, and reading the serial port frame, forwards them to the standard, or rejected. …

I have to do my homework for passing the course :) The question is that; Firstly the starting point is (x1,y1) we get these values from user and we get a lot of two dimensional points from user.If a point is far away from the center point of the points, …

Ive made my binary tree in the following format [code=C] typedef struct node { int info; struct node *left; struct node *right; }*nodeptr; [/code] Im looking for a function that will accept the root pointer and print the tree in a graphical format. for eg. i want the output to …

what's wrong with this program, i will sort descending this program [CODE] #include <stdio.h> #include <stdlib.h> FILE *fp; typedef struct buku{ int no; char judul[30]; char pengarang[30]; int jumlah; }dt_buku; dt_buku sementara[50],bantu; int i,j; void tukar(void); void viewData(void); void sortData(void); int main() { viewData(); printf("\n\n"); sortData(); return 0; } void …