49,766 Topics
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| | So, I'm back once again. This week I'm having issues with efficiency in a Radix Sort Algorithm. From what I understand this is the foundation of this algorithm. What operations might be costing me? For the basics I suppose I do understand push_ back being costly having to copy the … |
 | I am getting an access violation. Can anyone see why this might occur in the following code fragment from a GUID generator? [CODE] // here is a code fragment fro a GUID creation routine. // it is crashing with an Access violation #include <iostream> #include <fstream> #include <string> #include <stdio.h> …  |
| | I am interested in changing my major in college and also making a career switch, I would like some advice if anyone can provide it, I'm not super smart nor do i know too much about computers but i work with them as an AutoCAD Tech for an engineering firm … |
| | So im using the source code off a tutorial to learn and add a feature to drop a block. Ive learned so much so fra but now ive come to a dead end! You move with the arrow keys- works You press space to show the block- doesnt work heres … |
| | So the function: [CODE]glLoadIdentity();[/CODE] resets the matrix, so for instance we do this: [CODE]glMatrixMode(GL_PROJECTION); glLoadIdentity();[/CODE] how exactly does this work, it seems that we set the matrix and then just return it to the way it used to be.  |
| | Hello guys! I am new to this forum and would like to start off by saying hello to all of you! I have wanted to start learning C++ for a while now but I have never found a way to get on my feet when programming C++. I need to … |
| | I know that the colon is used for inheritance. [CODE] class x { public: long y; } class Z : X { public: virtual void ret_value(y); }[/CODE] but what does this mean? [CODE]int offset:16;[/CODE] i cannot find he answer to this anywhere. |
| | I have a programming assignment I've been having a lot of trouble with. Here is the question. Its long, I know. Design and write an object-oriented program for managing inventory bins in a warehouse. To do this you will use tow classes: InvBin and BinManager. The InvBin class holds information … |
| | I recently started using Code::Blocks and have written a small program to read in from a file. I think the problem i am having is the file not being found. Where does the IDE search for the file and how would i change this? Can i just input the whole … |
| | Hi Can anyone please help me understand and so possibly illustrate with an example why and how a function cant return or evaluate more than one value ?  |
 | Hey guys! I've got a small problem that I can't figure out. I have 2D arrays of arbitrary sizes, and they contain different characters representing different stuff (like 'a', 'b', 'c' etc.). Now, the problem is, I need to find horizontal and vertical lines of same characters and make new … |
| | [CODE] #include<iostream> using namespace std; void comparison(char arr2[], char arr3[],int& i,int j) { int abc=1; for(j=0;j<5;j++) { if((arr2[j]==arr3[j])||(arr2[0]!=arr3[0])) { j++; } i=i+1; j=5; } } int main() { char arr[5]={'a','b','c','d','e'}; char arr1[5]={'a','b','c','d','e'}; int refr=0, iteratorr=0; comparison(arr,arr1,refr,iteratorr); for(iteratorr=0;(iteratorr<5&&refr==1) ;iteratorr++) { cout<<arr1[iteratorr]<<endl; } return 0; } [/CODE] //Can anyone help me figure … |
| | I've been racking my brain on this for hours. The goal of the program is to estimate the value of pi using three different formulas. My arithmetic is fine, I've tested it, and if it is wrong, I can correct that easy. The problem is that my if statements don't … |
| | i'm new in C++ programming 1 problem comes in fuction .it's result is correct but it return the value 0 also,if i'm not use return 0; in functionin it print any value plz check this .and correct.thanx[code] #include<conio.h> #include<iostream.h> #include<iomanip.h> int mul1(int x[][3],int y[][3]) { int i,j,k,sum,z[3][3]; for(i=0;i< 3;i++) { … |
| | Hi all. I am trying to build a Binary Linked Trie but fail in basic pointer operations.Following code can be built but in debug or run mode, it breaks and outputs the error. [ICODE]typedef struct node { char ch; node *next; }; struct node *root = NULL; void add(struct node … |
| | Hi! :) I want to print all different elements of sorting array. input: 10 10 5 4 output: 10 5 4 :-/ Thank you!  |
| | Hello. First, here is my code: [CODE] class BankAccount { private: int accountNum; double balance; public: bool setAccountNum(int num); int getAccountNum() const; double getBalance() const; void depositMoney(double money); bool withdrawMoney(double money); void displayAccount() const; BankAccount(); }; class SavingsAccount: public BankAccount { private: int accountNum; double sBalance, rate; public: void setInterest(double …  |
| | Hi, I need to sort a string of symbols and numbers in to two different strings, first one with numbers, second with symbols. I have written the following code, but it only passes the first type into its string and gives random characters for the second type. Example: if i … |
| | [B]Note: see lines 26-28 in ResistorMain.cpp file this is pertaining to my question[/B] Note: driver file ResistorMain.cpp was given to me as well as some of the functions in Resisitor.cpp. I keep running around this and cannot seem to get this one part to compile correctly. This code requires a … |
 | hi i am new to [B]socket programming[/B] and we have to do a project in a month. can u suggest some good project objectives which will look on CV. any help is highly appreciated. |
| | I have mentioned the code for checker board made on visual studio .I dont know whats the problem with this code .. it just draw only one row of checker board on the drawing window :( help me //#include <windows.h> // use as needed for your system //#include <gl/Gl.h> #include<stdlib.h> … |
 | Hello all! I have exactly the same problem as in stackoverflow: [url]http://stackoverflow.com/questions/6442550/problem-with-makefile-and-gtkmm[/url] There they don't find any solution, so I hope you can help me. The problem is that when I compile in my terminal with: g++ main.cpp -o output `pkg-config --cflags --libs gtkmm-2.4` The compilation goes fine. When I … |
| | hi please I need help how to sort int line by line & get number of int in each line I have Input 4 2 32 8 6 10 7 9 21 2 3 14 1 5 Output must be 2 4 6 8 32 count = 5 2 3 … |
| | I made a snake game using only its native language...I use the _getch() function to get whatever the user pressed and I used also the system("cls") to clear whenver the head of the snake moved. I actually made it move by the use of 2dim arrays but I have a … |
| | Hello all. I am working with windows forms in c++/cli. I am trying to use a tabpage control. When i have a background image behind my tabs, the tabs will flicker when i click on them. I have read about using this in my forms main constructor. [CODE] this->DoubleBuffered = … |
| | I Want To Make A Utility Like The Old DOS Command "rdisk" In C++. The Things I Want It To Be Able To Do Are: WIN: Be Able To Specify The Drive Letter (Like rdisk's /:Z) UNIX: Be Able To Specify The Mount Point (/mnt/rdisk or /media/somthing, etc) BOTH: Make … |
| | how can i check if the number is positive or not by using switch statement please who know the answer help me and answer the question |
| | what I'm pretty sure I learned in school and what like every website said when I tried to look this up online was that the C++ code for generating a random number with floor: 1 and ceiling 100 (err I guess 101) is: [CODE]int number = rand() % 100 + … |
| | A black-hat cracker attacked to your computer and he took a very important sequence from it. Also, he replaced this sequence with five mutations of the sequence. The sequence has length of N and it's content are numbers between 1 and N (all the numbers one time) in a random … |
| | Hello! I have created a ChatClient in Visual C++ 2010 Express, cmd console only. Now I want to make it in Windows Form Application. I have come a long way but the thread function to start a new thread is a bit of a problem.. I get these errors: error … |
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