51,593 Topics
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| | 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; … |
 | Hello, I'm trying to write a function for a DLL in c++ what would check if a website is online or not and return either a error or the status code returned from the server, is there are any clever people out there, your help would be awesome, thanks. i …  |
| | Are there any O(n) algorithms to check if a 2d array is symmetric?  |
| | How can I start doing a program using pop-up menus in C++? with the choices which are clickable? which code I should use?thank you. |
| | 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 …  |
| | hi guys.. i am new to c++ and i am having a problem running it couz it usually says: [CODE]11 C:\Dev-Cpp\conio_test1.cpp `cout' undeclared (first use this function) [/CODE] this is my code and please try to help me! [CODE] #include<iostream> #include<conio.h> int main() { int a =0; while(!kbhit()) { printf("%a … |
| | I have a homework question that simply shows a linked list of 3 elements (each one with a character in it, 'A', 'B', and 'C' respectively), with the 'head' pointer pointing at the first value of the list, and a 'current' pointer set to null. The question wants me to … |
| | Hello, I'm supposed to write a programming project that reads 2 files and then organizes the numbers into an output file in order from smallest to largest. The input files are as they appear: 1 4 5 and also 2 3 6 Right now I'm having trouble with the output …  |
| | Hi, I have a problem with L-systems recursion, I tried a lot of ways to figure out how to make my fuction recure but I have no luck at all. What the program must do is the Koch system or rather the replacement rule, where by everytime the fuction recurs, … |
| | 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 |
| | I am trying to create a very large 3D array. I am currently using a psuedo-3D array with a 1D array. Here is what I have so far: [CODE]#include "stdafx.h" #include <iostream> #include <iomanip> #include <fstream> #include <istream> #include <string> #include <vector> #include <numeric> using namespace std; const int depth … |
| | I'm reading a big csv file into a data structure defined as such: [CODE]struct PriceInfo { double Open; double High; double Low; double Close; unsigned int Volume; unsigned int Time; std::string Date; };[/CODE] So somewhere in my main function, I have this line: // read contents of datafile by overloading … |
| | hey guys i am planning to program a website and a software that connects to the website and get information from the website..the web part is easy and i made it but for the program, is c++ good for such a program?? and if yes, which library do i need … |
| | I am confused! [code] void AnimationEngine::AddAnimationSet(Animation* animations) { AnimationSet* newSet = new AnimationSet(); for(int i = 0; i < (sizeof(animations) / sizeof(Animation)); i++) { for(int n = 0; n < animations[i].AnimationConditions.size(); n++) { //newSet->conditions is of type std::vector<std::vector<myType>> //animations[i].AnimationConditions is of type std::vector<myType> newSet->conditions[i] = animations[i].AnimationConditions; } } //Stuff unrelated … |
 | Hi, I have asked StackOverflow, compared my code to multiple different online sources, but I still cannot get the page status from the server. The library I am using is Wininet, and the function failing to retrieve the correct data is HttpQueryInfo. I am linking against wininet. Code: [CODE] int … |
| | Hello everyone, congratulations for the good job. The last 5 days i search for a comprehensible and simple, CPM algorithm and i can't find one. I want to make a program (in C++) that it will calculate the critical path of a given number of nodes..Any ideas? thanks for reading, … |
| | I need help with my distance formula. pow is apparently not in cmath or math.h. Since I am a beginner in C++, I need some help with the distance. I did the floaters and everything, well I used a book. Beginning Math and Physics for Game Programmers by Wendy Stahler. … |
| | Hi I am writing a football tournament sim and cannot get the main of my program to deal with the structures which are defined in the header. Here is the relevent code: header file [CODE] #include <math.h> #include <iostream> #include <array> #include <string> using namespace std; struct team{ string name; …  |
| | How can i display the pcm wavform by using BCB. Just like "Gold Wave" and "CoolEdit". I have tried to use Tchart and some other vcl components but they store data in memory. So when displaying huge data, the system will run out of memory. I don'n know how to …  |
| | hey! I have some questions regarding exceptions. concerning this code: [CODE]try 15 { 16 cout << " Function throwException throws an exception\n"; 17 throw exception(); // generate exception 18 } // end try 19 catch ( exception & ) // handle exception 20 { 21 cout << " Exception handled … |
| | Hi there, I'm currently working on a small broject which is about providing flexible download service. Basically, I read the info from a csv file and put it in the futurelist, then depending on the length of the file I will put it either in currentlist or delayedlist and after … |
| | How to print ascii values from 0 to 255 in C++ ? i have seen many programs regarding this but didnt understand them ...so plz give expalnation also. |
| | I am trying to create a 3D vector and then populate it with values. Firstly I want to create a 3D vector of size 100 with all initial values set to zero. I know that to do this in the 1D case the code would read as follows: [CODE]vector<float> vec … |
| | I'm not really sure what the correct way to initialize a 3d array is. [CODE]float array3D[100][100][100] = {0};[/CODE] Is this correct? When I try to compile I get problems. |
| | 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 … |
| | Normal buttons look Rectangular and I was trying to figure out how to round the edges of it and found myself with a headache.. How do those pro designers do it? How do they get the custom GUI's and the buttons rounded or even custom buttons in any shape? Kind …  |
| | I am having problems using the accumulate to find the sum of all elements in a vector. Here is what I have: [CODE]#include "stdafx.h" #include <iostream> #include <iomanip> #include <fstream> #include <istream> #include <string> #include <vector> #include <numeric> using namespace std; int main() { vector<float> energy; for(int i = 0; … |
| | Hey,guys I want to print a word in the center of a CMD's window If I can get the size of it,I could calculate the position where I put the word. Anybody who can help me? Much Thanks |
| | Hi I want to know : 1 how to add a persons name to the end of a dynamic array? 2 how to check if the array is full, and if so to print a constant string? 3 how to search in a dynamic array for a specific name and … |
| | I've made a shape base class along with a bunch of derived classes. I have an object array of derived objects and a loop to do the function but am getting this error: error LNK2001: unresolved external symbol "public: virtual void __thiscall Shape::drawObject(void)" (?drawObject@Shape@@UAEXXZ) Thought it might be a problem … |
| | Here is what I have so far: [CODE]#include "stdafx.h" #include <iostream> #include <iomanip> #include <fstream> #include <istream> #include <string> #include <vector> using namespace std; class dm_energy_vec { public: vector<float> m_energy_dep; }; int main() { const int phantom_size = 50; int energy_index; vector<float> xpos; vector<float> energy; vector<float> energy_dep (0, phantom_size); vector<dm_energy_vec> … |
| | 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!!.  |
 | I recently stumbled upon a boost installer (which I think is awesome), here [url]http://www.boostpro.com/download/[/url] and I was wondering if there is anything similar for QT and Visual Studio 2010? On the QT Website I found this page, but no VS2010 installer. Will the 2008 one work ? [url]http://qt.nokia.com/downloads[/url] I suppose … |
| | 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..? |
| | 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) … |
| | Hi guys, I am stuck in one of my code to count the number of occurrence of each element in an array. Can someone please nudge me towards where I am going wrong. [CODE]for(int i=0;i<r;i++){ for(int j=0;j<r;j++){ if(store[i]==store[j])//array where I need to count the no. of occurrence of elements { …  |
| | hey guys.. i have problem compiling this code.. i am new to c++ by the way. this is my code. [CODE]// Project.cpp : Defines the entry point for the console application. // Doodle Program #include"stdafx.h" #include<iostream> #include<conio.h> #include<random> using namespace std; int main(){ randomize(); cout<<"Doodler! Press I/J/K/M to move, Q … |
| | I have a shape class with each shape having a coordinate for where its located. I have overloaded the - operator to calculate distance but it doesnt return the correct value. Any clues? [CODE]//Main file with figure pointer to the derived class functions #include <iostream> #include "shape.h" #include "rectangle.h" #include … |
| | Hello, I am making a program that will draw a ramps for a bike game. It does that by making many lines which form a ramp or other figures. For one of the ramps I have a small problem. In the game if something is too smooth, it will slip … |
| | I keep getting this error while trying to make my football tournament simulator, anyone know how I can solve it? or even just what it means! ------ Build started: Project: world cup sim, Configuration: Debug Win32 ------ main.obj : error LNK2019: unresolved external symbol "void __cdecl teamstructure(void)" (?teamstructure@@YAXXZ) referenced in … |
| | using c++ program,enter students record and perform the following activity: save search delete view edit print |
| | [B]Beginner's Guide to C++0x: The Big Five - Implementing a Resource-holding RAII Class[/B] This tutorial will show how to implement a [I]resource-holding class[/I] showing practical use of [I]C++0x features[/I]. A resource-holding class is any class which holds, with its data members, a resource which could include: [LIST] [*]dynamically allocated memory … |
| | Hey guys, I want to know one thing, for instance I am having a character array like this: [@@123124123123125@@@] where 123, 124 and 125 are one three-digit numbers and are NOT separate like 1,2 and 3. I want to know the number of times 123, 124 and 125 have occurred. …  |
 | 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 |
| | Not sure why this moderator or admin or whatever deleted my previous thread because it wasn't anything malicious.. My problem is that getfileattribute doesn't work for me.. and my code below is just a snippet of my entire program which is below that.. Dear Mod: I think you deleted it …  |
| | Hi All, I have a simple question, I hope. Here's the overview of the problem: "There is a board game with 9 squares on it (three rows of 3 squares). Each square has a coin on it. The coins can be either heads or tails side up. You can only … |
| | Well, I define a function gotoxy(). [CODE]void gotoxy(int x, int y) //定位到第y行的第x列 { HANDLE hOutput; COORD loc; loc.X = x; loc.Y=y; hOutput = GetStdHandle(STD_OUTPUT_HANDLE); SetConsoleCursorPosition(hOutput, loc); return; }[/CODE] However,whenever I use it.There is a flashing cursor which is ugly to see. I want to get rid of it.But I don't … |
| | A couple questions I have for anyone that knows WINAPI as Im trying to learn it right now.. I usually program in .Net Managed and the basic console stuff. [B]First:[/B] Is there a designer for WinAPI like there is in Visual Studio Form App Editor? Or is it just outright …  |
| | What is the easiest way to check if a vector is empty? [CODE]#include <iostream> #include <vector> using namespace std; typedef std::vector<double> Vec; typedef std::vector<Vec> Mat; int main(){ Vec v; // this is what i consider to be an "empty" v if( /*check if v is empty here*/ ) cout<< "v … |
| | hi guys i am planning to create a website for my school(i am a high school student) that saves the students marks and then gives too many out puts. i am doing it for the science fair after 2 months. that is not my problem, my problem is i need … |
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