19,876 Topics
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| | I have some programs that use the D-Flat Library. This is a DOS based library. I am looking for help with porting this library to Linux command line environment. I need pointers to documentation on how to replace the low level keyboard, mouse, video functions to the Linux command line …  |
| | hi, I want to run lkdemo.c which comes as a sample of open cv. Actually i am interested in using algorthim of optical flow in order to track movement of an object for my project but it gives error which says segmentation fault.my operating system is linux .it is showing … |
| | The conditions for the question 1. you dont have any head ptr 2. you cant traverse as you dont have head ptr 3. its a singly link list 4. each node is dynamically allocated You only have a pointer to the node which you have to delete, and that is …  |
| | Hi all, I am currently extending a large C project with an own extension and I am stuck in a pointer/array/struct problem: The project offers a struct of this structure [CODE]struct ip_addr{ unsigned int af; /* address family: AF_INET6 or AF_INET */ unsigned int len; /* address len, 16 or … |
| | //include files #include<stdio.h> #include<conio.h> #include<stdlib.h> #include"c:/includes.h" //stores the structures of master and index file #include"c:/function.cpp" //stores all the functions for the file primitive /* The main function input: none output:none calleed by: OS. calls: ADD_RECORD,DELETE_RECORD,MODIFY_RECORD,SEARCH_RECORD,DISPLAY_RECORD */ void main(void) { int choice; int status; int roll_no; char ch; clrscr(); printf("Enter the … |
| | { char user[]={'\0'}; char* animal_holder[12]={"Ant","Bear","Cat","D… printf("You have to guess what %c%c%c%c stands for.\n",animal_holder[a][0],animal_holde… printf("Enter your guess:"); scanf("%s",user); if(user==*animal_holder) printf("Your choice is %s",user); } What are the errors?  |
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| | In the code below I am attempting to establish a method of inputing a year with digits (only digits) into the character array of year. It works, but now if the inputed non-digits are 4 or more (i.e. "abcd") the program runs the printf command more than once. I recommend … |
| | Hi my PC has no sound and the 'C-Media AC97 Audio Device' in the device manager has a yellow exclamation mark next to it. I have tried un-installing and re-installing it but this does nothing. Can anybody tell me how to fix this or how to aquire a working device …  |
| | Ok, this is my 3rd time asking a question so far I can see that people here are very helpful and I appreciate it :) today I have a question if something like this is possible [CODE]#include<stdio.h> #include<stdlib.h> int difficulty() { char difficulty; printf("Level of difficulty? (l-Low,h-High) - "); scanf("%c",&difficulty); … |
| | [CODE]struct marks{ int p:3; int c:3; int m:2; }; void main() { struct marks s={2,-6,5}; printf("%d %d %d",s.p,s.c,s.m); }[/CODE] Output 2 2 1 |
 | My code for the calculator is: calculator.h [CODE]#ifndef CALCULATOR_H #define CALCULATOR_H #include <QWidget> #include <QGridLayout> #include <QLineEdit> #include <QLabel> #include <QPushButton> #include <QLCDNumber> #include <QString> #include <QMessageBox> #include <QErrorMessage> class Calculator : public QWidget { Q_OBJECT public: //constructor Calculator(); public slots: //function to add the two numbers that the user … |
| | char animal_holder[12]={'A','B','C','D','E','… char* animal_master[12]= {"Ant","Bear","Cat","Dog","Eagle","Gan… I've used the srand and rand function to get randomly a letter from the animal_holder array. Now if the program inputs ABCD....ABCD should be equivalent to ant bear cat dog from the string animal master....HOW TO DO THAT???? |
| | I have to write a code that accepts 5 grades and sorts them from smallest to greatest using linked list.This is what I have so far using examples from the book. #include <iostream> using namespace std; struct List { int value; List *next; }; int main() { int num, num1,num2,num3,num4; … |
| | I am looking to learn best practices for working with strings. Two issues that I have with strncat are that it is difficult to calculate how much space to allow, and that there may not be a null character in the string after the procedure. So if I have two … |
| | When dealing with pointers, the "&" sign is called the address-of urinary operator. Knowing it's name sure helps to understand when to use it. Is "*" a urinary operator as well, and if so, what is its name? If it is not an operator, then what is it? Thanks. |
| | using c++ program perform a cash egister process having an inputted money and the total amount purchase in a store ex. item1:___ item2:___ item3:___ ... up to item n:___ money =___ total purchases:__ change:___ anyone can help me with this program?? thanks BIG HELP .. |
| | Hi i saw a post about this program already. im new to c++ and im lost... completely lost... im not even sure im posting this in the right place. anyways. the program i got is working correctly until i make it an OOP which is what my teacher wants us …  |
| | Dear Sir, I am student I want to research in image processing . So please give me some information about this and how to write program. Also plesae send the code for image segmentation and how tojoin the image. with regards Pradeep Kumar Mallick IIMT, Bhubaneswar |
| | [CODE]************** TURN 1 **************** | | | | | | a | b | c j | k | l r | s | t __ |___| __ __ |___| __ __ |___| __ | | | | | | d | e | f m | W | n …  |
| | Ok, I need to make a program that randomly generates 4 random letters from 12 random letter and it cannot reapeat the same letter. for example you can only pick from a,b,c,d,e,f,g,h,i,j,k,l and the program can randomly generate a,b,c,d or b,c,d,e but should not generate a,a,b,b or something that repeats.Another … |
| | Hi, I would like to print star pattern in the following way - **** *** ** * main() int i; clrscr(); for(i=4;i<=4;i++) { printf("*"); getch(); } It prints starts like **** I don't know how to complete the program. Can anyone please do the complete program for this so that … |
| | [CODE]main(){ char cChoice, cMarker1; printf("****************************************\n\n"); printf(" FLIP!-TAC-TOE 3D \n\n"); printf(" Enter S to start the game or \n\n"); printf(" E to exit! \n\n"); printf(" Choice: \n\n ", cChoice); printf("****************************************\n\n"); scanf("%c", &cChoice); system("CLS");[/CODE] this is the task:Display a simple introduction screen at the beginning of the game. After making a choice … |
| | Hi there! I am creating a game! [code] #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <SDL.h> #include <string> #include "font.h" #include "SDL_rotozoom.h" SDL_Surface *back; SDL_Surface *image; SDL_Surface *screen; SDLFont * font1; int y = 750; char * string = "Made by Weliaz @ http://weliaz.me"; int xpos=512,ypos=384; double opos = 180; … |
| | Hey very simple problem. I've been searching the site to see if I did anything wrong and I had to fail because I still get the wrong results (semantic error). Problem #1: Every time I use fopen with the "w" (or write) mode the file with whatever name given is … |
| | Hi folks, I want to count the number of times elements in the array 'store' occurs. I have gone this far. What I want is to count the number of times the elements occurs like if 2 is occurring then it will begin with one, if again 2 is occurring, …  |
| | When printing an int to stdout, the %d type is used. Why "d"? The other types (s for string, c for char, f for float) all make mnemonic sense, but I cannot figure out why "d" for int. It's not short for "double" or "decimal" I think.  |
| | HI All How can we generate a sine wave without using the sin() function. Thanks pretu |
| | Im trying to write a program that will get 10 different houses information about those houses will be price square feet and rooms. I have to use an infile about the information and then have it sort by selection or bubble sort also use a header file, can anyone help … |
| | Mike_2000_17 and Narue Just a thought: You should write a beginner's tutorial on C++0x for Daniweb. That will be a great way to promote this site. I can also contribute on some easier topics!!.  |
| | hi all, I am trying to pass an array to a function. an array is like char game[4] = {'S', 'R', 'D'}; i wanna pass the entire array to a function which accept. like this void name(char *game) How to do this..? |
| | I have two different ways to traverse a tree adt that essentially do the same thing except one is a recursive function and the other is iterative. How could I compare the efficiency between them? RECURSIVE [CODE]inorder(node) if node.left ≠ null then inorder(node.left) print node.value if node.right ≠ null then … |
| | Aside from using switch statements, do-while loops, and if-else trees, is there a good way to complete error checking after a user input from the keyboard? |
| | hi all, i am trying to make a prog. which will read the first line of a text file and put the first line into an array and pass the entire array to a function. Here is my code: [CODE]#include <stdio.h> #include <conio.h> #include <string.h> #include <string.h> void exe(char cmd) … |
 | I need to know a bit about this "default int" thing in C. What I mean is, is this actually ok and with what version of C is it ok? [code] main() { return 0; } [/code] As far as I knew this was standard modern C (i.e., no retarded … |
| | [CODE]#include <stdio.h> #include <conio.h> main() { int i; char full; char array[10]="ABCD"; for (i=0;i<=6;i++) full = array[i]; printf("%c",full); } [/CODE] I wanna convert an array to a full character .So that i can print the character like this line printf("%c",full); This program unable to print the character?? Whats wrong in … |
| | using c++ program,enter students record and perform the following activity: save search delete view edit print |
| | Hi there Everbody, I am using Borland c++ 5.02 for my C projects but a funny thing happens at run time.Though the source code compiles minus errors, I can't get to see my output because the command prompt just appears and disappears straight away.What could be causing this? |
 | hi, i am just wondering how to open a picture of a normal format. I know that you cant do it in the console. And i am using the compiler DEV-C++. Thanks |
| | Hi guys here is my problem.I am trying to send ICMP packets to a HOST using WINSOK.So here is my code: [CODE]#define WIN32_LEAN_AND_MEAN #include <winsock2.h> #include <ws2tcpip.h> #include <stdio.h> #include <stdlib.h> #define IP_RECORD_ROUTE 0x7 // // IP header structure // typedef struct _iphdr { unsigned int h_len:4; // Length of … |
| | Hello! I am making a program which does many computations for a Photovoltaic system. The problem is that i get a strange segmentation fault error when I run the program. Here is where it crushes (at for-loop of calculation S5) : [CODE] commands..... ... ... /******************** WIRING *******************************/ Ni = … |
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| | Im still noob on C Programming. And I just want to ask can you help me understand this codes. Like share some link about this topic and is there other way on doing it? The output of this is like: When I type HELLO the output will be URYYB (Rot13 …  |
| | Hi all, I have a simple code below [CODE]#include <stdio.h> #include <string.h> typedef struct { int apn_in_use; } bts_pdn_con_t; typedef struct _bts_pdn_con_list_t_slot { bts_pdn_con_t conn; struct _bts_pdn_con_list_t_slot *next, *prev; } bts_pdn_con_list_t_slot; typedef struct { bts_pdn_con_list_t_slot *head, *tail; } bts_pdn_con_list_t; typedef struct { int umsi; bts_pdn_con_list_t connections; } bts_ue_t; int funct(bts_ue_t … |
 | Ok, first of all, I'm not sure if this belongs to C section. Since WinAPI is written in C, I'll post here. I'm using OpenGL with Win32 windows (not sure how to call that). I can't switch to fullscreen mode after creating the window. I'm using Windows 7 (64-bits) and … |
| | char=l; string='hello'; This is my input,The particular character present in the string to change lower letter to upper letter. Output: heLLo Please anybody help me; |
| | Whenever I try to compile my code for this function my compiler keeps throwing projectB.c:31:15: error: conflicting types for ‘returnDegree’ projectB.c:19:17: note: previous implicit declaration of ‘returnDegree’ was here [CODE] #include <stdio.h> #include<math.h> int main(){ double sanantonioLat; sanantonioLat = returnDegree(29.0,25.0,51.0); printf("blah %f\n" , sanantonioLat); return 0; } static double returnDegree(double … |
| | I keep getting errors and i dont know what im doing wrong.I've included just pieces of these three files. The compiler is giving me errors and i dont know what's wrong. this is my header file List.h not all but some of it. [CODE]#include <iostream> using namespace std; #ifndef INTEGERLIST_H …  |
| | hi, i want to compile a file through the makefile command.Once i type make example it says that it is up to date but when i try to run it (correct me if I'm wrong ./example) it says that permission was denied..does anybody have any clue about that? |
| | If I have the following code [CODE]#include <stdio.h> #include <ctype.h> #include <string.h> int main(void) { char prose[] = "to be or not to be that is the question"; int i, len; len = strlen(prose); puts (prose); return 0; }[/CODE] where would I insert the function Cap to capitalize the first … |
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