51,593 Topics
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| | Hello, I am new to C/C++ and I would like to make my first project something similar to torrent searcher and downloader and my first obstacle is how to add a search ability, I know how to add a "edit control" so that users can make a string what they … |
| | [CODE]#include <iostream> using namespace std; int main() { char a, b, c, d, e, f, max; cout << "enter a b c: "; cin >> a >> b >> c >> d >> e >> f; max = a; if(b>max) max = b; if (c>max) max = c; if (d>max) …  |
| | Hello all. I'm currently working on this project and I have this problem that I can't figure out. take a look at my codes and please give me some ideas. I'm kinda new to C++ by the way. thanks [CODE] #include <iostream> #include <cstdlib> #include <ctime> using namespace std ; … |
| | Ok, I have chosen my exact path in life and need to learn this: How would I program for Linux? I have only minute ammouts of windows programing so start from absalute basics (like after cout and cin and main() stuff, start at oh something like LinMain or whatever linux …  |
| | So here is my code for a sum function for a vector - using boolean success to just pretty much catch simple errors and what not However when I compile it says that success is undeclared in my int main() and I was just wondering how to properly declare it … |
| | The errors in the program say all the cases besdies the 1st ones inside the "woods" function are not within a switch statement, i think its something to do with the if statments i have inside the switches, any help to help me solve this would be great, thanks everyone. …  |
| | I keep getting an error saying that I am not using an object while calling a method, but I do not see how i this is the issue since I declare my class as a class... here is my code: [CODE]#ifndef __STACK_H #define __STACK_H #include <iostream> #include <cstdlib> using namespace … |
| | The input is in a text file and it being read by the code and stored in "line" by using getline. The input is just math operations.. 1*8+2 etc. Only * and +, nothing else. But the file can also contain invalid strings such as "1++" "1+2*+4" "2 + A … |
| | Is this possible? I need to read the data from a stack (and a queue), but I need to maintain the stack (and queue) so they can be used later. I have not found any useful information online. My only thought is loading the data into a parallel stack before … |
| | I have a question similar to this, [url]http://stackoverflow.com/questions/457050/how-to-display-text-in-system-tray-icon-with-win32-api[/url] I tried his solution but it's not working for me. I get a small 4x16 white image as the system icon instead of text and I can't understand why. I'm not using MFC/.NET just win32 api. [CODE] void UpdateIcon(HWND hWnd){ NOTIFYICONDATA nid; … |
| | Hello Everyone, I am working on a package delivery simulation. I believe I have a bug. Lines 47-53 give the user the option to choose a particular moment of time where they can see a snapshot of the system's status. The program seems to break down if I choose to … |
| | I am working on an assignment that requires me to read in a text file with text that looks like this [CODE]974 Headlight_LoBeam 6 12.87 5 3[/CODE] I am able to open the file successfully and just for testing purposes I am able to use getline() to get the first … |
| | Hello All, I am trying to return three integers from the load function below. Right now, the program only returns the throughput variable. How do I use this function so it returns all three? (I am trying to implement this in a larger project where I cannot call the load … |
| | I am trying to get the height of a BST using a stack. I was told that I should use preorder and measure find the largest size of the stack. However, this does not seem to work. Any ideas of what I am doing wrong. [CODE] int PBT::maxDepth() { if …  |
| | Ok so I played around with this for a while and it works..but I wana know the logic [CODE]#include <iostream> using namespace std; int main() { int number; int max = 0; cout << "enter number: "; cin >> number; while (number !=0) { if ((number % 10)> max) //rem … |
| | Can somebody please tell me what am I doing wrong? I have created a so called "game" and I have decided to add some random events. That's where I got this nasty error which I do not know how to dispose of. [CODE] #ifndef FUNC_H #define FUNC_H #include <iostream> #include …  |
| | Hello Everyone, I am getting the following error on line 12. "variable or field 'start' declared void" I have deleted quite a bit of code, in case your wondering what the program is supposed to do. I don't understand why the compiler would have a problem with this function being … |
| | Can someone please explain to me how the pointers were used in the line w/ the red font. I do not understand where the pointer pertains to and why there is still a need for that. Also why is it that a "+" sign was used to combine two array … |
| | hello everyone. i read about the functions abswrite() or absread() etc, but these fucntions are not supported in modern compilers. i would like to know what are the modern alternatives of these functions in c++?? btw i am using visual studio 2010 and rad studio xe. |
| | Hello all, I was trying this problem of checking if the input integers can be ordered using the STL implementation of the stack. The program reads from a file named "input.txt" which in its first line has the number of integers that follow in the second line. The second line … |
| | [CODE]#include<stdio.h> #include<conio.h> #include<stdlib.h> struct clink { int info; struct clink * next; }; struct clink * start; void create(); void display(); void main(); { [SHOWING ERROR IN THIS LINE "Declaration terminated incorrectly"] struct clink *p. *q. char ch; clrscr(); start=(struct clink *) malloc (size of(struct link)); printf("in ent the info;") … |
| | Hello there! I just start to learn the basic of C++ in/output functions. I wrote a program: [CODE]#include<iostream> using namespace std; int main() { int ptype; char options; char finops; do{ cout<<"Select a printer type: "; cout<<"\n1. HP printer"; cout<<"\n2. Dell printer"; cout<<"\n3. Brother printer"; cout<<"\nYour choice : "; cin>>ptype; … |
| | I have the following code: [CODE]HWND hwn= FindWindow(NULL,"CABAL"); HDC hdc = GetDC(hwn); COLORREF x; POINT m; m.x=50; m.y=50; ScreenToClient(hwn,&m); x=gp(hdc,m.x,m.y); if(x==CLR_INVALID) cout<<"CLR_INVALID\n"; cout<<"Red: "<<(int)GetRValue(x)<<"\n"<<"Green: "<<(int)GetGValue(x)<<"\n"<<"Blue: "<<(int)GetBValue(x)<<"\n"; [/CODE] The problem is gp( GetPixel ) always returns CLR_INVALID and white (255,255,255). Also, I find it strange that SetPixel works with any coordonates. … |
| | Hi Everyone, I'm new to C++ and developing something to enhance my skill, however I find it difficult on my knowledge right now, I want to write a program similar to SMS that everytime I input a character it will automatically increase my counter, and if i will press backspace, …  |
| | SORRY I TRIED TO INDENT THE CODE BUT IT DIDNT WORK OUT I am trying to make a binary tree for conversion of postfix to infix. the binary trees class is as follows WHAT I HAVE TO DO AND WHAT I AN HAVING TROUBLE WITH 1) READ A POSTFIX EXPRESSION … |
| | i have a program that reads in a file with shapes and numbers and tokenizes each line. after it tokenizes, it then calculates the shapes dimensions. what i need to do is make it so that this program reads in the file and stores every shape and its values into … |
| | I am required to compute all Lucas numbers up to a certain number. To keep track of a summation, more specifically, the summation of all Lucas numbers you have encountered up to that point. A small example: If the user inputs a bound of 23: Lucas numbers up to 23 …  |
| | Ok here is what I am asking: is there any simple way to use program to program communication in a console application. Like one asks for a number and the other displays it? |
| | Hello, I am working on a program where I need to be able to send a file over the network to another computer. I would like to have a sort of system setup where each computer that is running my program will show up in an "address book" of sorts, … |
| | [CODE]#include<iostream> #include<math.h> using namespace std; main() { int i; float j=1.00; cout<<"enter a no"<<endl; cin>>i; float k=(float)(log (i)/log(2)); k=k%j;//------------------error-------… "%" cann`t take float vlaue. if(k==0.00) cout<<"no "<<i<" is a power of 2"<<endl; else cout<<"sorry ! i am afraid "<<i<<" is not a power of 2"<<endl; } [/CODE] i tried this … |
| | Here is a task out of a book [quote]Your task is to write a C++ program to help you convert a number into roman numerals. Roman numerals are I for 1, V for 5, X for 10, L for 50, C for 100, D for 500, and M for 1000. … |
| | Hello, I am getting an error when I try to pass a linked list and an iterator to the printList function below. For some reason it does not recognize the printList function call. I get the following error on line 39. no matching function for call to 'printList(std::_List_iterator<Event, std::allocator<Event> >&' … |
| | Can someone send me a example of how to copy a file from a remote folder to other remote folder? For example: I am running MyProgram on MyComputer and this program has to copy a file from a folder inside OtherComputer. This folder need user and password to allow MyProgram … |
| | Hi, I'm writing a C++ script and part of it is to connect to an SQL Server. C++ is new to me so I'm still working my way around. Any help would be greatly appreciated. Many Thanks  |
| | Hey im just trying to get back into c++ and i cant seem to solve why this is happning? I know theres too many header files also, i just normally leave them there in practise things when im messing with colours etc. Could you also please explain why it is … |
| | I'm just starting to learn C++ and I need some help. I need to be able to read in a text file and pull out numbers from the file (like a news story, etc). I will need to be able to do other checks with the numbers as well, I'm … |
| | Hi friends, I need to convert this random number generator in C++ to C. Please help me. C++ code [CODE] #include <iostream> #include <ctime> using namespace std; //This class will give satisfy basic // random number considerations for // games an general apps. // WARNING: Not for Cryprographic use // … |
| | i wanna use the Sleep fucntion in a CLR vc++ app, if i include windows.h it gives a huge list of errors, if i use _sleep() then it dowsnot work at many systems since its obslete. what should i do? i am bound to use CLR bcoz my code uses … |
| | [code] #include <iostream> #include <cstdlib> #include <ctime> using namespace std; int main () { int guess; unsigned int seed = time (0); srand (seed); //different spot?// int upperBound; int lowerBound; int range; char c; bool done = false; do { bool found =false; upperBound = 101; lowerBound = 1; do …  |
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| | Who can teach me the purpose of stringStream, and how to use it, please. I have read some paper about this, but I still have something don't understand. |
| | Here is the assignmnent I need to complete: "Write a program to calculate and print the result of the following two operations: 1/1 + 1/2 + 1/3 + 1/4 + 1/5 + ... + 1/99999999 + 1/100000000 and 1/100000000 + 1/99999999 + 1/99999998 + 1/99999997 + ... + 1/3 + … |
| | Hello all, I am fairly new to c++ and I am completely lost right now. I am suppose to create two dynamic arrays that prompt the user to enter how big the arrays should be and it also asks the user to enter the numbers they want to store in … |
| | I tried to use the code on MSDN to create Rawinput but i kept getting this error: RAWINPUTDEVICE was not declared in this scope. I am writing in c++ and direct x and i am using Code Blocks [ICODE] void RawInput(void) { RAWINPUTDEVICE Rid[2]; //keyboard Rid[0] .usUsagePage = 1; Rid[0] …  |
| | I am writing a program that writes log entries to an external text file and returns them upon request. When called, the return function should output the log entries between two user- submitted dates or outputs the last 100kb of the file if that's what's requested. The logfile stores each … |
| | [code]#include <direct.h> int main(){ mkdir("C:\\Program Files\\Bacon"); }[/code] Creates a folder in the folder that the .exe file is in, and is called "Program FilesBacon". I think it's obvious what I wanted it to do. Help please? I'm using codeblocks if it matters. |
| | Someone gave me this challenge See how large a type is by storing powers of 2 in this list of types: float, double, long double. To determine if a number will fit, start with 1.0, double it, then divide by 2 to see if you get the previous number. For … |
| | hello, i started programming again after a while and i made this just to pass time/relearn the basics and stuff there is a weird issue that i can't figure out, when i input row 0 column 2 or row 1 column 2 it will fill the spot for both the … |
| | Hello everyone! I have been working on a sudoku generator. My main aim is to create a completed 9x9 grid that follows the rules of sudoku. The grid should display unique numbers every time it is run i.e the numbers have to be randomised. My logic in tackling the problem … |
| | I'm try to make a program that will ask a user to input a string then the string gets masked (by asterisks) and later, guess every letter (character) of the masked word until the string is fully unmasked (a la Hangman). But my problem is, after the first unmasking, the …  |
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