[c] Forum Topics

Hi, I am programming some console application that updates itself periodically from Internet. (windows.h + pthreads for win32) I want to do something like: [CODE] MAIN FUNCTION: create thread launch updater THREAD: infinite loop - starts the main application, exits if application ended normally but when it was killed by …

By using an if statement how could i get a character to detect end-of-file. i was thinking something like this: [CODE] char a = '\0'; int count = 0; if(a == EOF) { count++; }//endif [/CODE] but it doesn't seem to detect the end-of-file. Any idea would be appreciated. Thanks …

[code] #include <stdio.h> int max(int x, int y); int min(int x, int y); int main() { int grade, total, counter, avg; total = 0; counter = 0; printf("Enter grades: (-1 to end list)\n"); do { scanf("%d", &grade); if(grade != -1) { total = total + grade; counter = counter + …

Following is the one of code written by me for shared memory. Problem is that program donot come outside from marked loop and read numbers infinitely. "common.h" [CODE] struct common { int a[10],b[10],c[10],flag; }; [/CODE] p1.c [CODE] #include<stdio.h> #include<unistd.h> #include<stdlib.h> #include<sys/shm.h> #include"common.h" int main() { int running=1; void *shm=(void *)0; …

void ADD_QUOTE(){ do{ printf("\nPlease enter Length:\n"); scanf(" %d ", &length); }while(scanf(" %d ", &length)<200 || scanf(" %d ",&length)>4000); { while ((length[count] = getchar()) != '\n') putchar(length[count]); } return; do { printf("\nPlease enter Size:\n"); scanf(" %d ", &size); }while (size[count]<200 || size[count]>4000); do { printf("\nEnter which Board type you want: 'A'-4mm …

I am making a program to store all the powers of 2(1,2,4,8...) till 2 ^50000. Although I am getting the answer,I am not getting my answer in the required time limit. Any suggestions? How should I store the numbers? Here is my stupid code as of now [CODE] #include<stdio.h> #include<math.h> …

I need help figuring out how to count sentences from a .txt file. The following guild lines are what is considered to be a sentence: 1. A TERMINATOR followed by two spaces 2. A TERMINATOR followed by one space and end-of-line 3. A TERMINATOR followed by end-of-line 4. A TERMINATOR …

hello! how to make a program that replaces words in a file and replaces it with another word and saves it to another file. Using command line arguments.?

[code]#include <stdio.h> #include <stdlib.h> #include <time.h> # define clrscr() printf("\033[H\033[2J"); struct treeNode { struct treeNode *leftPtr; int data; struct treeNode *rightPtr; }; typedef struct treeNode TreeNode; typedef TreeNode *TreeNodePtr; struct queueNode { TreeNodePtr data; /* define data as a char */ struct queueNode *nextPtr; /* queueNode pointer */ }; /* …

Anyone know shifting of switch in PIC16f84 am planning to use three switch in VirtualBread Board but only one switch will work..

Hello, I'm using pause() to suspend threads until I need them and pthread_kill(thread, SIGCONT) to resume. It works the first time over with the thread unpausing the first time I send SIGCONT, but not the second time around. Does sending the signal cause it to be ignored and if so, …

Hi all. I have this error and i cant figure out what is wrong here, i have tried to google and used a few methodes to c what is wrong but, naah, no luck. [I] pic 16f887 HI-TECH C Compiler for PIC10/12/16 MCUs (Lite Mode) V9.81 Copyright (C) 2010 Microchip …

Hi I am trying to validate a URL in-putted by the user to check whether it is syntactically correct. [CODE] #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string.h> #include <sys/types.h> #include <regex.h> printf("Enter the website URL:\n"); fgets(str, 100, stdin); if (!strcmp(str, "\n")) { printf("Empty URL "); exit(2); } regex_t regex; …

I just have a quick question. Say I have a struct for the purpose of commenting in which it could be filled up or left blank depending on the user. Therefore, I need to dynamically allocate memory to the array comments. [CODE] typedef struct userComments { char comments; } name; …

hello all! i need help regarding my C programming homework of the Conway's game of life. i have to make a C program that will read a textfile containing a 25x25 matrix of 'X' or 'blank space' and will print its content. This will serve as the initial generation and …

My simple Serial Port code doesnt work. Not sure if its my code, or my USB adapter. Can someone try it / tell me what ive done wrong? [code] #include <stdio.h> /* Standard input/output definitions */ #include <unistd.h> /* UNIX standard function definitions */ #include <fcntl.h> /* File control definitions …

Hey forum, I'm very new to C++, and I need some help. I'm currently having trouble trying to write a Caesar cipher in C++. So far, I'm able to get it to read characters from a text file, and let it count the # each letter appears in an array. …

[CODE]#include <stdio.h> #include <string.h> #include <stdlib.h> int main(){ char name[80]; char *searchptr; int i, t; for(i=1; name[i]!=EOF; i++){ printf( "Enter name\n"); scanf("%s", &name[i]); } for(t=i; t<=0; t--){ printf(" name[%d] == %s", i, name[t]); getch(); return 0; }}[/CODE]

i hove a problem about hot to write a program to determine if a number entered by a user is a prime number. Program Input is : Prompt user for a number between 1 and 1000. the probable Program Output is: Echo the user input, display whether the number is …

Hi, I'm trying to define a dynamic array that consists of an email address and a home address. How can I define them dynamically using malloc() in the below struct? [CODE] typedef struct entry{ char name[40]; /* contains name */ char phone_number[9]; /* contains phone number */ struct entry *next …

I am trying to implement a program for finding the remainder on division of 2 numbers n2/n1 such that n1 is of the order of 2^32(having a few digits) and n2 is the order of 2^65536(having about 20000 digits) So far I have stored them in an array digit by …

Hey all, admittedly this is some homework help. I'm trying to write a program which takes a string in of hex characters, calls an assembler function which gives me the decimal value of the hex string. That assembler function calls a "checker" function in C which makes sure each character …

I'm trying to create an array of structs, of which the array size is defined by the user in the program. eg. p[0], p[1], p[2]..... [CODE] typedef struct { int score; }player; void main() { int numPlayers; printf ("\nEnter number of players (1 - 4)\n"); scanf ("%d", &numPlayers); }[/CODE] The …

Hey guys i need to color code [CODE] printf("hello World");//how do i change this to green printf("How are you");//How do i change this to yellow or something [/CODE] How do i change the color of the text inside the printf

hi, I recently wrote this code to calculate the hamming distance between any two binary numbers... The program accepts the numbers in decimals, performs a bitwise XOR operation and returns the HD... However, it returns the Hamming distance in decimal... that is if after XOR it gets something like 0010... …

Hello , I'm new here and new to c/c++ programming. Can you guide me how to extract user from path like : /home/[COLOR="Red"]user[/COLOR]/public_html Please help me , thanks a lot

Say I have a struct: [CODE] typedef struct entry{ char name[40]; /* Contains name */ char phone_number[9]; /* Contains phone number */ struct entry *next ; /* next is used to navigate through structures. */ } contact; [/CODE] I have a pointer: [CODE] contact *email, *address; [/CODE] In my main(), …

Hello, I am a beginner at programming and I am having some trouble finding the error in my code(pasted below). I am first trying to come up with a (1) function to evaluate integers at a given power.(2) A function to check if an integer is a perfect number. I …

I'm running the following in Eclipse using the Cygwin as the toolchain and the error code is executing. I get "cannot get params about stdin: Inappropriate ioctl for device". It's fine in Linux. I've been able to run other code that doesn't use this header. Also, how can I set …

Dear All, I have written a code to implement an algorithm for base conversion from decimal to any base between 2 and 36 given in RG Dromey. Below is my code and I have a few questions relating to it: [CODE] #include<stdio.h> #include<stdlib.h> int main() { int newbase,zero=atoi(0),q,ndigit=0,r,ascii,i; char newrep[100]; …

I'm a little stumped on a section of code in my program. I'm trying to take in a string of chars and then store each word within that string separately in an array of strings without using stdtok and then output them with only a single space separating each word, …

So i am making a piece of program In C but i cant get to check the system time and execute IF the time is equal to the systems time. in Plain english this is what my program is supposed to do. # # LIBRARIES # 1. Check the system …

Hi, I'm only starting my program and I already have this error but I really don't understand which ones are causing this shift/reduce conflict and why. Can please someone help me? it says I have 2 conflict shif/reduce. This is the grammar: [CODE]Start : Declarations/* put your RHS for this …

is this logic correct, where does counting starts in a link list, is it from 0 or 1. b'cos when i am ading item 60 at loc 4, den the output is : item number 1 contains 30 item number 2 contains 20 item number 3 contains 10 item number …

[INDENT][B]Hello, everyone[/B][/INDENT], nice to feel so welcomed here! My name is John and I study Informatics in Athens, Greece. I'm using the nickname mikrosfoititis which could be translated as "young student". I'm into C++, C, HTML, CSS, and basics of MIPS Assembly, PHP and JAVA. I would really love to …

hello everybody, please guide me how to make the communication between two systems so as to transmit the message, using C programming language. thanks

Hi Friends!! I am coming across this problem that whenever I am trying to retrieve the data in a dataset through SQLDataAdapter and Dataset, it is taking around 10 min to get the data on the localhost. And when I am running the same code on the live server it …

Hi! I'm new to C and I'm having some problems in my program. It opens a .txt file then copies this to another .txt file but replaces a certain word with another word. It uses command line arguments. Example: //inside text.txt love is patient love is kind ... ./change love …

I am trying to write a function that compares two text files (test1.txt and test2.txt) word by word, the function is supposed to print "files are equal", "files differ: word %d" (if word 13 then past 12 words were equal), and "EOF on [filename]" (the files were equal word by …

Hey guys, I'm new in Linux/Unix and just whant to figure out one simple thing: So lets say I wrote my c program in vi in Linux, and whant it to be on the unix server. When I'm trying to just copy and paste text from vi. It apperas in …

Analyze, design, and document a simple program that utilizes a good design process and incorporates sequential, selection and repetitive programming statements as well as at least one function call and the use of at least one array. Each of these items (sequential code, at least one selection statement, at least …

[CODE] FILE *ranch; FILE *myfile; char line[500]; case 1: ranch=fopen("garrudaRanch.txt ","w+"); if(ranch != NULL) { printf("Enter amount of Corral: \n"); scanf("%d",&corral); fprintf(ranch,"%d\n",corral); printf("Enter size of Corral: \n"); scanf("%d",&corrals); fprintf(ranch,"%d\n",corrals); } fclose(ranch); break; case 2: myfile=fopen("garrudaRanch.txt ","r+"); if(myfile != NULL) { //fscanf(myfile,"%s",line[1]); printf("Number of Corral: %s",line[1]); printf("Size of Corral: %s",line[2]); } …

Hello, I have one dataset as one arraylist. In that the columns values are in string as high, low, medium.. so how i display that values as string in c or java? pl reply me

Hi there, I tried binary addition. It seems to work fine. Could someone tell me if there's a better way of doin this or any bugs that could be uncovered in the code below? I appreciate your time. Thanks, Tina [code=c] #include <stdio.h> void binaryAdd(char *, char *); int main() …

I have problem with printing the binary tree.After i put the numbers it is just closing.Can't find the problem,somehow it ignores the function called "printukas". [CODE]#include <stdio.h> #include <stdlib.h> struct tree { int data; struct tree *rajt; struct tree *left; }; typedef struct tree node; int main() { init(); } …

how to perform a 64-bit addition in c? but the following code fails? why? I have taken this code from stack overflow. But this doesnot works. Pls help me. I need to perform 64-bit addition in c. I am using 32-bit compiler. :chomp: :chomp: /* break up the 64bit number …

I'm current trying to write codes that will read a .txt file and count the words and sentences. Right now im currently just trying to count words. So far my code is counting all multi-letter words but not single letter words. I know i can hard code in 'a' and …

hi, i m doing a program now. in which i need to get ascii values like SOH, NUL etc from the serial port. i m getting the values as string. i don know how to process the ascii values to obtain the original values back. example my data is SOH …

From what I have read, command line arguments are only char* separated by space. However feel compelled to ask if anyone knows of a way to get a pointer across to an executable in any fashion? The goal is to pass int *pointers for reasons of inter process communication across …

Ok so I am working on a hash map but I ran into trouble with reading in the input. I need to be able to read in the input from a file if specified if not from the console. Thats not a problem but when it comes to reading it …