19,876 Topics
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| | im writing a chat server in c and am need help. my server can write to a socket, the client can read from the socket. How do i have the client write to the socket and have the server read from the client socket? server.c [CODE] #include <stdio.h> #include <unistd.h> … |
| | Dear All, I have a function with input parameter as const u_char *p. So when I write like this printf("\n\n Char value p : %.2x",(unsigned int)p[1]). It gives me a hex value. How to print the whole p value which method is best to use. I need to analyse it … |
| | Hi guys, I'm trying to develop a card program, which seems to be working fine, with the exception of the dealing part. The deck is initialised, shuffled, then is supposed to deal out 5 cards without duplicates. However I keep seeing duplicates when I deal. I've ran though it countless …  |
| | Hi, I have a task to perform which all to do with the smurfs, reading from a file and doing some simple stuff to it. The last part I need to do is print out a list of all smurfs and their corresponding role in alphabetical order. I am hoping … |
| | for example, i want to combine two number 6 and 8 and it will equal 68. is this possible in C? [ICODE]int a = 6, b = 8,c; c=ab; [/ICODE] and c will = 68. |
| | Hello; For the below program, I am trying to create a procnanny program which will monitor the processes according to the specification said in a configuration file. The parent process will create fork() child processes each for monitoring a process as specified in the configuration file. The configuration file is … |
| | [CODE]void merge() { if(start==NULL) { start=start2; } else { temp=start; while(temp->next!=NULL) { temp=temp->next; } temp->next=start2; } temp=start; if(start==NULL) printf("\nList is empty"); else { printf("\nElements of the list:\n"); while(temp!=NULL) { printf("%d\t",temp->info); temp=temp->next; } } system("pause"); system("cls"); main(); }[/CODE] the following code is use to merge two linked list into one and …  |
| | [URL="http://www.herongyang.com/C-Sharp/"]C# Tutorials[/URL] This free book is a collection of notes and sample codes written by the author while he was learning Flash. Topics include C#, C Sharp, data types, float, expression, literal, loop, .NET, performance Table of Contents About This Book Introduction of C# (C Sharp) What Is C#? Installing … |
 | Hello. i was trying to solve this problem: [B]You’re given an array containing both positive and negative integers and required to find the subarray with the largest sum (O(N)). Write a routine in C for the above. [/B] i was able to find the largest sum. However,i had little trouble … |
| | My application is testing devices connectivity using ping (ICMP) functionality. It is working fine for all devices but for a particular device that is CISCO wireless controller it is not able to ping the device. I am able to ping the device through command prompt but when i debug my … |
| | I have this code: Note: boom.ok[1][0] has the character "a" while boom.ok[[tempr[0]][0] contains the string "ay". [CODE]if ( strcmp(&boom.ok[1][0],&boom.ok[[tempr[0]][0]) == 1) printf("Hello"); if ( strcmp(&boom.ok[1][0],&boom.ok[[tempr[0]][0]) == 0) printf("Hello");[/CODE] None of these statement prints hello. Why? |
| | Hello, all. I am receiving an error that I hope you all can help me with. After running a while or quite a few reports, I get the message " The maximum report processing jobs limit configured by your system administrator has been reached." I know this is because I … |
| | C program to replace all the letters of a string with all 26 alphabets and to do permutations to all the substituted ones and finally store the resulted strings in a file.. please help me out in fixing this situation.. To be clear. let me quote an example: If i … |
| | i m having trouble with updating the fie. every time the code is executed, the variables are not retrieved from the file and start from the scratch. moreover, the file is not updated. plz reply |
| | Hi, so I have this assignment to create a scheduling algorithm, I tried looking everywhere for help on how to create one and the closest one was here, where I found a great source code, yet I tried to modify it with my assignment variables and I created some nasty … |
| | [CODE]void alternate(char wordWord[][MAX],char wordVar[],int word[],int i,int j, int k, int l) { char ang[4],si[3],ni[3],ay[3],sa[3],kay[4]; int X,Y,Z1,Z2; strcpy(ang,"ang"); strcpy(si,"si"); strcpy(ni,"ni"); strcpy(ay,"ay"); strcpy(sa,"sa"); strcpy(kay,"kay"); tokenize(wordWord,wordVar,word,i,j,k,l); if(wordWord[j][k] == ang[4] || wordWord[j][k] == si[3]) X = wordWord[j][k]; else if(wordWord[j][k] == ni[3]) Z1 = wordWord[j][k]; else if(wordWord[j][k] == ay[3]) Y= wordWord[j][k]; else if(wordWord[j][k] == sa[3] … |
 | I have errors for the template can any1 see anything wrong??? //Array.h [CODE]//Header file for Array.cpp. class Array { private: //Template for use with the Array's data type. //Member Variables. int size; int grow_size; int num_elements; public: //Functions. template<class Datatype> int m_size; Datatype* m_array; //Consturctor. Array( int p_size) { m_array= …  |
| | [CODE]#include <stdio.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <termios.h> int main() { int fd; int wd=0; unsigned char buff[] = { 0x02, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x23, 0x01, 0x21, 0x03}; fd = open("/dev/ttyS0", O_RDONLY | O_NOCTTY | O_NDELAY ); if (fd == -1) … |
| | Hello can anyone help me with sorting this struct by name and surname? Ive done like this and it doesn't sort it. Thanks Code: [CODE]#include <iostream> #include <string> #include <vector> using namespace std; struct student { int st_studenta; string vpisna; string ime; string priimek; }; student vpis(int st_studenta) { student … |
 | why this code not produce any reaction on any command [CODE]#include<stdio.h> #include<unistd.h> #include<fcntl.h> #include<stdlib.h> void count(char c,char *fn) { int lc=0,wc=0,cc=0,handle; char ch; if(handle=open(fn,O_RDONLY)==-1) { printf("File %s fail to open",fn); return; } while(read(handle,&ch,1)!=0) { if(ch==' '||ch=='\n') { wc++; }else cc++; } if(ch=='\n') { lc++; } close(handle); switch(c) { case 'c': … |
| | Hello! Im having trouble with reversing string in this program: [CODE]#include <iostream> #include <string> using namespace std; int numChars(string besedilo[]) { int znaki=0; int vrstica=0; for(int a=0;a<10;a++) { vrstica=besedilo[a].length(); znaki=znaki+vrstica; } return znaki; } int numWords(string besedilo[]) { int besede=0; string vrsta; for(int a=0;a<1;a++) { vrsta=besedilo[a]; for(int b=0;b<besedilo[a].length();b++) { if(vrsta[b]==' … |
| | I want to write this function integerPower(base, exponent) that return the value of base^[I]exponent[/I] For instance integerPower(3, 4) = 3*3*3*3 The function has two parameters my question is how can I use the for loop to control the calculation? It's not that hard to use the for loop when the … |
| | So I'm fairly sure I have everything in the correct order, it compiles correctly, but when I try to run I just crash after the first Employee ID input. I've tried all i can think and have searched the web yet can't figure out why it crashes. [CODE] #include <stdio.h> …  |
| | i am working on a program to find the factorial of a number of any length. i have used an integer array to store the digits of the result. the problem is that i am unable to store more than 32000 digits in the array. if i give a larger …  |
| | in test function the for loop work fine but printf(num[0])is getting 0. does any one know why? [CODE] int main(void) { char num[20]; num[0] = '3'; num[1] = 'a'; void test(num); } void test(char num[]) { for(a = 0; a < 20; a++) { printf("%c",num); } printf("%c",num[0]); } [/CODE]  |
| | does any one know why my for loop work fine but printf("%c",num[0]); get me 0? [CODE] void test(char[]); void test2(char[]); int main(void) { char num[10]; test(num); test2(num); } void test() { num[0] = '1'; num[1] = '2' } void test2(int num[]) { for(a = 0; a < 10; a++) { … |
| | I have an integer called: int pID = 0; Inside my while loop I'm using pID++; to increment it. Sometimes the pID doesn't get incremented and sometimes it will. My sample output would be. 0 1 2 2 2 3 4 5 5 6 7 Does anyone have an idea … |
| | I want to change chars in string like this: if i input DaniWeb it will change it to EbojZfc I've come so far: But this changes to z at the end :S Please any help... [CODE]#include <iostream> #include <string> #include <algorithm> using namespace std; int numChars(string besedilo); int numWords(string besedilo); … |
| | What is meaning of "nature of entity"? e.g. kind of function, global variable? Is there any code to check it? Also, how to detect the memory section in memory map? e.g. environment, command line arguments, code/, global initialized data, global uninitialized data, stack, heap etc. Is there any code to …  |
| | serial port problem is occuring,,, pls guide on the same as i new to this,,, [CODE]#include <stdio.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <termios.h> int main() { int fd; int wd=0; unsigned char buff[] = { 0x02, 0xFA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x23, 0x01, … |
| | I need help finishing this assignment. I am really confused! [CODE] //Game of Life //Dylan Metz #include <iostream> #include <string> #include <fstream> #include <cstring> using namespace std; //function(s) void GetFile(); //Get filename char MakeArray(); //Make 2d array char ChgArray(); //change the array char GameBoard(); //Game Board //Global Variables const int … |
 | hi all can i know how to find greatest of two numbers? the condition is we should not use any comparision operators.. thanks in advance |
| | Hi,im making a console application,i would like certain printf:("") to have different colour than the others,is that possible? |
| | I am having a problem displaying random numbers, I'm trying to make a dice game where you play against the computer and the first one to 100 wins. However, my random number is never random, it always comes out as the same number. From what I understand to simply display …  |
| | [CODE]#include <stdio.h> #include <stdlib.h> int main () { int i,n,big; int * pData; printf ("Amount of numbers to be entered: "); scanf ("%d",&i); pData = (int*) calloc (i,sizeof(int)); if (pData==NULL) exit (1); for (n=0;n<i;n++) { printf ("Enter number #%d: ",n); scanf ("%d",&pData[n]); } big=pdata[0]; for(n=0;n<i;n++) { if(big>pdata[n]) { big=pdata[n]; } …  |
| | what is the use of malloc,calloc,realloc ?? i studied i didnt get proper knowledge .why instead of this why cant we use array??? |
| | I'm currently working on a dictionary library in C and would like to start using struct's for easy assignment. Now, I have several functions that need to be a member in said struct's. I have it working well using pointers, but my only problem is that I would like to …  |
| | hi there im wondering about the difference between: int nr; if(!((nr--)%5)){...} if(!((nr--)%5)){...} and: int nr; if(!(--nr)%5)){...} if(!(--nr)%5)){...} is it right that in case 1 nr will be decremented after true/false comparison and in case 2 in advance? assuming nr=123456; in case 1 it would be true for second if.... and … |
| | [CODE]#include<stdio.h> struct rec { int i; float PI; char A; }; int main() { struct rec *ptr_one; ptr_one =(struct rec *) malloc (sizeof(struct rec)); ptr_one->i = 10; ptr_one->PI = 3.14; ptr_one->A = 'a'; printf("First value: %d\n", ptr_one->i); printf("Second value: %f\n", ptr_one->PI); printf("Third value: %c\n", ptr_one->A); free(ptr_one); return 0; } [/CODE] … |
| | Hi, When writing a little code for showing ASCII characters in C++ and C, the only difference is when I do it in C++ I print until char ( or integer ) reaches value of 127, and in C I print until it reaches 255. Why it's like that? Thanks! |
| | hi guys,i was trying to make user able to make selection again when they make an invalid input, but when i run this code,it just doesnt work that way,it goes printing the same line like crazy...did i do something wrong? [CODE] int main (void) { //Local Declarations int menu; //Statements … |
| | While it is true that the inorder traversal of a binary search tree produces a sorted output, is the converse also true, i.e., if the inorder traversal of a binary tree is sorted, then is it necessarily a binary search tree? |
| | [CODE]#include<stdio.h> #include<conio.h> void main(){ char x; int result,a,b; printf("type the first number\n"); scanf("%d",&a); printf("enter the operand\n"); scanf("%d",&x); printf("type the second number\n"); scanf("%d",&b); switch(x){ case '+': result=a+b; printf("value is:%d",result); break; case '-': result=a-b; printf("value is:%d",result); break; case '*': result=a*b; printf("value is:%d",result); break; case '/': result=a/b; printf("value is:%d",result); break; case '%': result=a%b; … |
| | I wanna convert an integer to a character then i will store it later to the index of a c-string...... something like... int res=123 then it will be putted in.... var[0] = 123 where in var is a cstring, and here 123 is now a char type..... here is what … |
| | I'm writing a tcp server and client program in C on linux. It compiles and works under linux, but when I try to compile it using terminal under mac I get errors. If somebody knows why I would appreciate telling me. Any way I have most of the program done, … |
| | Hi, I'm trying to create a thread for running some tasks. I copied the code from an old console application (which compiles fine), but can't figure out why it's not working now. I have searched for the error code and came across this suggestion: "Are you passing the name of … |
| | This is my code: it works,but when the user answers correctly until question 7,the question 8, 9 , 10 will be skipped and goes to result instantly,can someone tell me whats wrong?i been looking it trhough for hours >.< thanks [CODE]void hangman (void) { int wrong =0; int answer; char … |
| | hi guys,im trying to create a menu which allow user to select their choice. When a choice is selected, a function designed for that choice will be called. However,it seems that i cant use 'if else' to call them, is there anyway to solve it?im sure i did it wrongly...if … |
| | Alright, I understand some of the basics of big O notation, but I have a test coming up in a few days and I need a bit of help. I understand that if you have a loop that iterates i*=2 then it would run lg(n+1) as log base 2 and … |
| | Hey, I have a problem taking input from the terminal. I need to read an integer first, then a string. But when I press enter after entering the integer, the string doesn't take any input. Yes, I did try using a fflush(stdin) between the 2 inputs, still doesn't work. I … |
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