19,876 Topics
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| | alignas (since C++11) alignof (since C++11) and and_eq asm auto(1) bitand bitor bool break case catch char char16_t(since C++11) char32_t(since C++11) class compl const constexpr(since C++11) const_cast continue decltype(since C++11) default(1) delete(1) do double dynamic_cast else enum explicit export extern false float for friend goto if inline int long mutable …  |
 | #include<stdio.h> #include<conio.h> main() { int a[5],priority[5],adj[5][5]={0},i,j,k; a[0]=3; a[1]=4; a[2]=5; a[3]=7; a[4]=10; adj[0][1]=1; adj[0][2]=1; adj[0][3]=1; adj[1][0]=1; adj[2][0]=1; adj[2][4]=1; adj[3][0]=1; adj[4][2]=1; /* the ads[4][4] represents the linking edges adj[4][4]= 0 1 1 1 0 1 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 1 …  |
 | Hello. I am having a tough time understanding the concept of double linked list. For now, i understand double linked list has 2 links, one forward and another one previous. data is in the middle. when inserting must check where to insert. if previous is equal to null, then can … |
| | can c connect with database like mysql,access or sql server ? |
| | Hello! I made a program in Dev c++ in windows that does several string functions.It works perfect in windows but when I tried to use it in Linux(ubuntu and CentOs), linux make the executable file which means it has no syntact error or something but when I try the several …  |
| | Im supposed to make a little game in which you're supposed to guess a letter in 6 tries. It reads the letters from a text file. I get a bunch of errors and dont really know what to do. Any suggestions? #define _CRT_SECURE_NO_DEPRECATE #include <stdio.h> #define MAXGUESSES 6 //this function …  |
 | Hey Guys! I wonder how to put a texture on a specific position in DirectX. for example: I want a function that allows to set a Texture on an 2D Position and set the width and height like this pseudo funktion: x y w h DrawTexture(pDevice, 25, 25, 200, 100); … |
 | in my exam, there was a question: what is linux/command which can't be ignored in any way? write the command to kill a process having id 1234 ? my answer was : SIGKILL and for second part i have written a C code function kill(1234,SIGKILL). now my teacher is saying … |
| | I am receiving this error markup.c: In function ‘GetPrice’: markup.c:16:23: error: ‘markup’ undeclared (first use in this function) markup.c:16:23: note: each undeclared identifier is reported only once for each function it appears in markup.c:17:1: error: ‘output’ undeclared (first use in this function) here is my codes // File: markup.c #include<stdio.h> …  |
| | #include <stdio.h> main() { char *s1, *s2; printf("Enter string 1 :"); scanf("%s", s1); printf("Enter String 2 :"); scanf("%s", s2); printf("%s\n%s", s1, s2); } The output of 1st string is right and the output of 2nd string is wrong (i.e. (null)) Can any 1 explain what is going behind? |
| | main() { printf("\nab"); printf("\bsi"); printf("\rha"); } output =hai could you please explain me how output came out to be "hai"?  |
| | Hey guys i am having a small problem with this calculation in bold: **amtwon = (pow(pbet,2) / pow(pbet,2-100 *pbet))** ; amtlost = ( 0.35 * pbet); totalwin = (amtwon - amtlost); this is the block of code.the problem is **amtwon** totalwin is supposed to return a value of 23.993.18 but … |
| | Hi, Please help me with home work: c# highest and lowest value of 6 inputs.  |
| | I've recently started college at Digipen, and have developed carpal tunnel already from all the writing/coding/etc... but fortunately for me, I'm learning to be a programmer, and have already made a few programs to assist with things like opening command prompt/bat files faster/without clicking, etc. Since clicking the mouse is … |
| | **Because it is a compile-time operator that, in order to calculate the size of an object, requires type information that is only available at compile-time. This doesn't hold for C++.** i have read this statement roght now when implementing one library function. why it doesn't hold for C++? secondly, i …  |
| | Basically the program is a database of student enrollments. I cannot get the the search delete/undelete and update functions to work and need help asap. Need to implement a bool field to the delete / undelete Please help #include <cstdlib> #include <iostream> #include <iomanip> #include <conio.h> #include <fstream> using namespace … |
| | Hi, I am writing code for connecting to an access database in my windows 7 machine. Am using visual studio 2010 with access 2007. While debugging the code am getting the exception **"The 'Microsoft.Jet.OLEDB.4,0' provider is not registered on the local machine"**. Below is my code, Try connection = New … |
| | hi i am a php developer. i am working as a beginner. but now i have got a project in C#. i have practice of writing sample code in C++ so i think C# will not be that tough. but i dont how to use it to make a desktop … |
| | I am trying to write a program to make a list of books using linked list. I am using C language. My program crashes as soon as I finish entering the list. It is supposed to print the list before exiting. Any ideas ? //Defining what libraries should be included. …  |
| | Hi friends i had a assignment to make this c++ program output f e d c b a e d c b a d c b a c b a b a a i have created this program using this code # include <iostream.h> # include <conio.h> void main(void) { … |
| | Guys I have to implement two algorithm using Pseudocodes in order to genarate formal concepts... but the implemented code doesn't give the expected results i want ...   These are the two algorithms i wanted to implement and the expected result is Concept - 1 [0,1,2,3,4] [] … |
| | Write a program to input a sentence until user presses esc or enter key. Calculate the number of spaces, small letters, capital letters and vowels. It should also print the length of the sentence. If user enter a character other than space or alphabet, it should not be displayed on … |
 | i want to take the 1st argument from commandline, ie argv[1] and assign it to a `char target[80]` i know im making some very stupid beginer mistakes... but just cant understand what :( this is my code: #include <stdio.h> #include <string.h> void converge(char *targ, char *src); int main(char *argc[],char *argv[]) … |
| | hi, actually I am learning C from past 1 year now and have learnt alot in C. I have read many many books and have solved alot problems in C. now, i am thinking so as to do some kind of project in C/C++. can anyone suggest me some kind … |
| | I'm required to write a packet sniffer in the C programming language and Identify the Packet as IP, ARP, or Broadcast and count how many packets of each. I'm able to get IP packets identified and counted, but don't seem to be seeing any ARP or Broadcasts correctly or count …  |
| | char c[]= "JOJO1993"; char *p =c; printf( "%s", p+p[3] -p [1]) ; this is a code snippet. p is a pointer and when it is used as *(p+3) means 4th character. but my question how can a char pointer can be used as pointer to first byte of any object … |
| | Hi I am trying to write a small C++ program using nested loops so that when the program executes I have the following output displayed [code]** **** ****** ******** ********** ************[/code] Here is the code I have written. I seem to be having a problem with proper loop execution. I … |
 | i wrote this program it c++ in response to this question "total amount of milk produced each morning and then calculates and outputs the number of cartons needed for this milk (which will need to be a value rounded up to the nearest integer), the cost of producing the milk … |
| | Hey guys, I'm really stuck on this problem. I think you have to do backward recursion, but don't know how to go about it. I just need help with the algorthim for the function "backtracking". Find the best cheapest way to get from city 1 to city 2. I have … |
 | I'm in a class where the professor has just thrown us into the world of C with no help at all. So I would really appreciate any help anyone can give. I know Java and Visual Basic pretty well, so I'm not completely new and lost, I just don't understand … |
| | Im getting double free error's from this? Why? 2d array standard implementation. any clues? int **m = malloc(5 * sizeof(int)); int i,j; for(i = 0; i < 5; i++) m[i] = malloc(5 * sizeof(int)); for(i = 0; i< 5; i++) free(m[i]); free(m); |
| | I am trying to write a program that converts a string of numerals to integers. The program I have written gives me an invalid output. Any ideas what I have done wrong ? //Defining what libraries should be included. #include <stdio.h> #include<math.h> int strIntegerTmp(char *string, int collect); int strInteger(char *string); … |
| | HI , I have a basic question to ask. how do i open a .txt file in C ? i am using the code shown below which is always telling that "file not found". #include <stdio.h> main() { FILE*fp ; fp = fopen ( "PR1.txt","r" ) ; if( fp == … |
| | i have a datetimepicker with format dd.MM.yyyy.. when i have, for example, date 14.02.2011, save it and then want to enter 31.12.2011 then datetimepicker validator doesnt allow me to enter 31 because of month 02 inside, so it set automatically 29 in the datetimepicker. in this case, i have to … |
| | # include<stdio.h> # include<conio.h> void main() { int s1[10],s2[10],s3[10],total[10],per[10],i; char name[20],pid[10]; clrscr(); printf("==================== Marksheet ======================"); printf("\n\n\n"); for(i=0;i<3;i++) { printf("\n Enter your name:"); scanf("%s",name[i]); printf("\n Enter your PID:"); scanf("%s",pid[i]); printf("\n Enter your Subject1:"); scanf("%d",&s1[i]); printf("\n Enter your Subject2:"); scanf("%d",&s2[i]); printf("\n Enter your Subject3:"); scanf("%d",&s3[i]); } printf(" \n ===================== RESULT OF MARKSHEET … |
| | Ok guys, I'm back with new code. I got help from my professor on the problem, but the USB drive I'm using deleted all of his work and I can't remember what he did to get it all to work. I need to get the file (titled lab2.dat): This is … |
| | Why is C++ on linux basically C? I've tried everything to avoid C on linux but it's simply near impossible. I've tried to stick directly to the standard library but I somehow find myself using dirent.h, types.h, etc.. Is there any other ways to do these other than using C … |
| | Does anyone know tutorials for link list to be able insert,delete,cout list,give id and time void list_insert( UINT time, UINT id, UINT event) { } void list_head_delete() { } UINT list_head_event() { work_ptr = list_head; if(work_ptr == NULL) { return 0; } else{ printf("Should print the list head \n"); return … |
| | Basically I am attempting a HW assignment for questions that a frequently asked in interviews. I am not sure if I am having problems with the coding or actually understanding what they question is asking for. Basically I am asked to find an element in a sorted array and that … |
| | i am trying to make a program where i have a server with multiple clients, where a client sends a message to the server and when the server replies to it, the server broadcasts the reply to all the clients. the code has some error and is not working. i … |
 | A program which displays the prime factors of a given number, all the 'hard' work is done by the [B]factorize()[/B] function: [CODE=c] /* Find out the prime factors * of a given number and print * them on the screen */ void factorize(int n) { int d = 2; if(n … |
| | struct node { int data; struct node **next; }; can we use like this??? |
| | Hey, so i'm having some problems with my message passing code. Ultimately, what i'm trying to do is use the msgget/snd/rcv commands to send the pid of the parent to the child, and visa versa. However, i'm getting an invalid argument error fr my msgsnd in the child process. My … |
| | Hey all, this is a pretty basic program that will take a use submitted array and call functions to find the max,min and then a function to reverse the array. I have the first two functions written and working but I am having trouble with the reverse array function. The … |
| | I've figured it out but I want to know HOW. When I do code I try and figure out the math behind it on the side so I know exactly what is going on. But this time has stumped me. I know what the code is suppose to be, so … |
| | Hi everyone just wanted to ask: 1) How to transmit captured data through the internet from point a(sender), then get it to point b(receiver) in steady but fast format? "probably simmilar to Http or voip and close to ATA voice adapter without to much coding and hardware involved" I think … |
| | //==============================================================================// // RPS (Rock Paper Scissors) // Author: SoulPour777 / Janrae Mendoza // A Simple C++ Game // =============================================================================// #include <iostream> #include <cstdlib> #include <ctime> using namespace std; string player; string player2; int wins; int loses; int roll; int draws; void error(); void gamePlay(); void Scene_Result_Display () { cout << …  |
 | Hey! So i have started learning c, quite refreshing when i normally code in Java :) I have this task where i need to store three int values in an unsinged int via bitwise operators. Its for a RGB picture where the colour is limited to 256. I have done … |
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