19,876 Topics
 | |
| | i want to know half duplex communication using c.so please help me on that topic.  |
| | Hi !!!!! I have to filter the input for a geniric string with some operations. for example : [CODE] char buf [] ="25+2;44+1;8-2." char op1[20]; char op2[20]; char operazione[20]; char en[20];//in this varible i put ";" for the next operation , I put "." becouse the operations are end sscanf(buf,"%[0-9] … |
| | This is a fragment of a program for finding palindrome numbers.Every checked number is a string which is reversed...and I'm using array of strings which isn't done right. Any help will be greatly appreciated. [CODE]#include <stdio.h> #include <string.h> void isPalindrome(char *str1[],int l){ int str1size = strlen(str1[l]); int n; int misMatch … |
| | int c; while ((c = getchar()) != EOF) In the above code, why it is prefereble to use variable 'c' as integer datatype rather than character datatype eventhough we are assigning characters to 'c' ? Can any one explain clearly?? |
| | I'm currently working on this course assignment and I'm trying to set up code to search within a database file (really its just a text file named a1.db). I hear we can use the popen function to implement shell code within a C program so here's what I tried: ---------------- … |
| | |
| | Hey guys , I need some help in writing a C code for a calendar problem. I need to write a code to find the day of the week if the month and year are entered by the user. Not able to get the logic for it. I need this …  |
| | This is a program for getting the sum of prime numbers of given range. The problem is that it would take hours if the limit is about 1000000. I've read about the sieve of Eratosten but having difficulties with implementing it. Could someone help to make this piece of code …  |
| | I want to parse through a root folder which is entered by the user by using multi threading and multi processing at different versions.But how can I distinguish while I am parsing through a root folder whether the next is a folder or a file?To summarize I want to learn … |
| | |
| | #include<stdio.h> main() { int a=10; printf("%d %d %d\n",a=10,a=20,a=30); } o/p: 10 10 10. Here, the latest value is updated and printed as the expression statements separated by commas in funtions are evaluted from right to left. But, in below program by using global variable or static variable why the updated … |
| | hi, im a beginner. i hav an assignment on Pascal's triangle. i saw some post over the topic but couldnt get it to work with my code. heres what i have done so far.... [code=c] #include<stdio.h> #include<conio.h> void main() { int a[10][10]; int i,j,c,n; clrscr(); printf("Enter how many lines do … |
| | There is a code snippet [CODE]Int matchstar( char c, char *regexp, char *text) { Do { /* do sth */ } while (*text != ‘\0’ && { ‘text++ == c|| c == ‘.’}); Return 0; } [/CODE] I do not understand how does the logic in while work, in specific, … |
| | hello all, following is the code that fetches required columns from r.csv and makes a new file. now i want to ignore first line of r.csv while fetching defined column . what should be done? [CODE] #include <stdio.h> #include <stdlib.h> int main() { FILE *in, *out; char ch; char *rdf,*wdf; … |
| | hello, what book will you suggest me to read if i want to learn gui using c language.? |
| | |
| | I have a question here.. i have 2 files with me list of usernames and a list of passwords i need to write a program to check each user name with the list of passwords. Then need to go to a website and see if it logs in. I am … |
| | Hey hombres. I feel a bit embarassed to ask something so simple,but i need help with qsort. As you will understand,im trying to sort my table made of "catPage" structs,which are read from keyboard,comparing the lName strings. First i print the struct array unsorted,then sorted,but what i see printed is … |
| | so I want to take the totalPoints divide it by 850 then multiply it by 100 giving me a whole number, my problem is when i use my printf to display the new total it comes out at 0 or a number that i wasnt expecting. [CODE]totalPoints=grade1+grade2+grade3+grade4+midterm+attendence; printf("total points so … |
| | How can i read some number from a text file and then go back to read some other information? All i know, is read it from the beginning to the end, but even when i check something for ex if(fgetc(in)!=...) goes forward one character, and all this messes up my … |
| | Hello, I'm new with C and I've almost finished this little program but something is wrong. The program reads in a list of names from the file names.txt that I put right in C:, and prints the list to an out file called trans.txt (which it creates on its own) … |
| | I'm trying to write a program which allows a person to enter the number of days they have worked. Their hypothetical salary is 0.01$ per day and doubles everyday (0.02$ on the 2nd and 0.04$ on the 3rd day etc...). For each day, the day number, pay for the day, …  |
| | Hey can someone help me with a code to mask password. To print * when the user enter a value and when they hit backspace it takes back a *. Im having trouble figuring out the code |
| | Here the val should print the max number but its printing some address. When i tried to print while in loop, it printed the largest number but in the next line it again printed the address. please tell me whats wrong. Thanks [code=c]#include<stdio.h> #include<conio.h> int main() { int arr[5][5]={ 2,4,8,11,15, … |
| | im really stuck with this program as i was sick when this unit was covered and havent a clue on how to write it *crys* and i dont get it done iv been told i cant do the course for next year dispite passing everything else. level 1 1. get …  |
| | I need some help with the toupper code. [code] int main() { char pick; printf("A. Local needs\n"); printf("B. Local Service\n"); scanf("%d",& pick); switch (pick) { case 'a': printf("Hello World"); case 'b': printf("Hello Nation"); } getch() return 0; } [/code] How would i implement the toupper code so i could change … |
| | I am trying to learn C++ by myself using a book and want to work through everything it says. I am on a program that you have to write kinda like a cash register program that tells you how many 5's, 1's, quarters, dimes, nickles, and pennies you should get … |
| | [B]I've tried out suggestions from several posts related to BGI Error (on daniweb n innumerable sites)but it just doesnt get solved.. Whenever i try to execute (after compiling successfully) a graphics program it either exits out of C and into DOS mode or it gives an error "The NTVDM comp … |
| | Hi Friends, -The current connector for accepting request to our existing system is written in C language,we had build a ".so" file by compiling c program using MF cobol. -Cobol application calls this ".so" files and passes the required buffer.The current data structure in our application is simple string. -Now … |
| | Hi All, Just starting my online C programming class and my textbook states "In a computer language, a token is the smallest unit of the language that has a unique meaning. Thus, the reserved words, programmer-created identifiers, and all special mathematical symbols, such as + and -, are considered tokens … |
| | I got the first function tagReader to work, but how do I get the program to read the other functions such as getEmployee, paycheck, repeater, valid, and header. Here is all I get for the output: Results from tags1.txt : Cylinder: bsharkdata 1782 12.00 82.90 Cylinder: ftmyersfeb 7150 11.00 32.89 … |
| | |
| | Hey, i just start working with string and i am totally noob =). So i would like to ask you if you can help me... I have some programs to write, but i have a little problems to get the code working... Ok first question is, how do i make … |
| | How to write a structure that set a countdown of days at 30. After which the days have expired, produces an indicator?  |
| | Can somebody please help me with the c code for monitoring System power,that is how to check if a pc or laptop is running on power or battery |
| | I do not know how to write a function for this. I have written just the base line of the code, but I do not know how to finish it. Here is the description. A void Function tagReader inputs the data collected by the cylinders; it has two parameters: the … |
| | I am trying to make a program that will read in a text file and count the number of words that have a certain length from 1 to 20. So it should count the words that have a length of one, two, etc., and print it out. I have been … |
| | hEy pLz sOlve this pRobLem pls?. .Enter the grade of ten students and will display the number of students who passed and failed granting a passing score of 75 and above. |
| | |
| | To be honest i really don't know where to start or what should I. The problem states, "Given the vertex pairs associated to the edges of an undirected graph, find the degree of each vertex." I.e. (A square has 4 vertex then the degree of each vertex is 2.) It …  |
| | when i create an empty project...my compiler is saying _TCHAR* is undefined...what file do i need to include to fix this problem? [code]#include <iostream> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { //blah blah blah return 0; }[/code] |
 | Hi, When we define any integer array like int a[3]={1,2,3}; then it will assign the values as a[0]=1, a[1]=2, and a[2]=3 But, when we define any character array as char a[3]={'a','b'}; then compiler here automatically consider '\0' null character to represent the end of the string So, my question here …  |
 | [COLOR="Red"][B]The flowchart is on the attachment. Please check it out[/B][/COLOR] [COLOR="Red"][B]I also get this error: error: cannot convert `__gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >' to `char' in assignment|[/B][/COLOR] [CODE]/*************************************************** The following program will take user's input and check whether it is in the following language: <S> ---> a <B> | …  |
| | Hi Guys, I was wondering how one would write a C program that calculates the value of a cosine function without using any library functions from <math.h> I need the outputs to turn out like this Case 1: cos(-1.000) = 0.540302303792 Case 2: cos(1.000) = 0.540302303792 Case 3: cos(1.500) = …  |
| | I am really trying to pass this class, and am simply struggling majorly with C, I need help with these 3 problems that are due today by midnight, please help, will appreciate it greatly, and even pay if thats what it takes. I did problem 1, but used math.h, which … |
| | [CODE]#include<stdio.h> #include<string.h> #include<conio.h> struct menuItemType { char menuItem[15]; double menuPrice; } menuList[]= {"Plain Egg",2.50, "Bacon and Egg",3.45, "Muffin",2.20, "French Toast",2.95, "Fruit Basket",3.45, "Cereal",0.70, "Coffee",1.50, "Tea",1.80 },order[10]; void getData(struct menuItemType[],struct menuItemType[],int*); void showMenu(struct menuItemType[],int); void printCheck(struct menuItemType[],int ); int main() { int items = 0; printf("Welcome to HiFi's Restaurant\n"); printf("\n"); printf("******* … |
| | [CODE=c] int main(int argc, char *argv[]) { ifstream inHandle; Assembler obj; if(argc!=2) { cout<<"InvalidInput ERROR"; } else { inHandle.open("test.asm"); if(inHandle==0) cout<<"FileNotFound ERROR"; else obj.pass1(inHandle); } inHandle.close(); return 0; } [/CODE] this is my code for the main() function, i have tried entering the filename in every possible format but the …  |
| | |
| | I'm trying to compare two DateTime objects, but I am receiving the following error. error C2664: 'System:: DateTime::Compare' : cannot convert parameter 1 from 'System:: DateTime ^' to 'System:: DateTime' I'm just trying to use the DateTime 'Compare' method to perform the check. Below is an example to illustrate what …  |
| | How can one write a c password program that accepts only 3 attempts of password input |
The End.