51,593 Topics
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 | I have the following collision detection function that checks the collision between the line defined by lstart -> lend and the triangle defined by points a,b and c with a normal of nvec. I want to know if it will work and what to put into the missing part. (it … |
 | I am loading an extension dll from my mfc client application, when click on the menu first time the dll dialog is being loade and after i exit or close the dialog, and again clicking on the menu to load again it's giving error that "A required resource was unavailable". … |
| | [URL="http://www.herongyang.com/C-Sharp/"]C# Tutorials[/URL] This free book is a collection of notes and sample codes written by the author while he was learning Flash. Topics include C#, C Sharp, data types, float, expression, literal, loop, .NET, performance Table of Contents About This Book Introduction of C# (C Sharp) What Is C#? Installing …  |
| | Ok, so basically the program runs, compiles and everything. But, after you run it, u will see the problem. When i run it it I cannot display the original entered information. I am new to this and I have tried a few things, but everything I try seems to mess …  |
| | Hi I'm wondering how you would write a function that could iterate through any stl container so it didn't matter what you were using e.g list, vector, deque and found an item that matched in that list so the function declaration would look something like this [CODE] template <class TypeList, … |
| | I'll get straight to the point as it's very difficult to do since I haven't found the answer on google or anywhere else. [CODE] Class ArrayOfTypes { vector<MyType> P; &MyType operator [](int I) = (MyType& PT) { if (P[I] != PT) { P[I] = PT; } return P[I]; } } … |
| | Hello, I'm trying to overload an indexing operator and I'm running into issues with a vector (3 dimensions). Here is what it should do: [CODE]operator[] The indexing operator should be overloaded to provide accessor methods for the class. Subscript 0 should provide access to the x component value of the … |
| | Hello all. I am having difficulty getting my program to output data correctly. I have a class member function that is supposed to return the value of a specific member of a struct element based on identification with its (the struct element's) other members. [code] float MatrixType::valueAt(int i, int j) … |
 | in coding, how do you actually track down the bug??? example this code where we want to find the quartile.... ignore the "odd" part, not done on there yet, but the even part just successfully running but produce no result after input (0, random huge number, and another 0) [CODE]#include …  |
| | The puzzle The original puzzle is in Java [url]http://wouter.coekaerts.be/2012/puzzle-clowns[/url], so I tried to write it in C++ and post it here for your, so that you solve it and having some thing to think:-) There almost aren’t any rules; any cheating inside your code is allowed; it is the whole … |
| | Is it Dangerous to Derive from STD? Specifically std::string. Why I'm asking? I want to write a class that extends the functionality of std::string and a couple other std structs/classes.. So that when I do something like: String M = ""; M.Explode(........) it'll do the functionality in my class below. … |
| | I would like the user to be able to see the sales total for any given month when they input a valid month. Everything works other than what I stated above. I am completely stumped on how to store the salesTotal values inputted by the user into an array (monthSalesTotal). …  |
| | Is there any way to use standard C++ to wait for user input? And by input I don't mean just the enter key, I mean ANY key will continue executing code. I know about the conio.h and Windows.h libraries but those aren't standard C++ and I really want to get …  |
| | [COLOR="green"][B]I already have counting the number of elements programmed, which was fairly easy, but now I am confused with the comparisons. how exactly would I program this exactly? please help me understand what exactly to do bc the wording is really confusing me[/B].[/COLOR] Problem Statement In order to compute the … |
| | #include <iostream> #include <string.h> #include <ctype.h> using namespace std; int main() { char clear[200]; char cipher[200]; int x,i; cout<<" Enter a string:"; cin.getline(clear,sizeof(clear)); x = strlen(clear); for(i=0;i<=x-1;i++) { cipher[i] = clear[i]+3; } cipher[x] = '\0'; cout<<" Encrypted:" << cipher << endl; system("pause"); return 0; } Hey Guy i'm new to … |
| | How can I get a variable amount of arguments in a function without providing how many arguments will be passed? For example, when you use a VA List, the first parameter must be the amount of arguments passed.. I don't want that. I want to just start passing any amount …  |
| | I have: [CODE] private: Void GoBtn_Click(Object^ sender, EventArgs^ e) { ((WebBrowser)MultiTab->SelectedTab->Controls[0]).Navigate(SearchBar->Text); } [/CODE] But it keeps giving me an error at Controls[0] and telling me that no operator [] matches.. Control::Collection^ [int] <--- No clue what that line means.. Next it tells me that I cannot cast TabControl to (WebBrowser) … |
| | Howdy all. I'm having an issue tackling my assignment. my givens are I have an int pointer, which is supposed to point to an array of values. This pointer is in a private part of my class. However, I have a specific set of values I want to pass in, … |
 | Hi everybody.. I have this error messages: linking... LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16 Debug/calendarType.exe : fatal error LNK1120: unresolved externals Error executing link.exe. I do not know what to do please help!!! thnx.. |
| | Hello, all. I am receiving an error that I hope you all can help me with. After running a while or quite a few reports, I get the message " The maximum report processing jobs limit configured by your system administrator has been reached." I know this is because I … |
| | How can I do the following? I read up on Variable Arguments last time I asked this question (Mike pointed me in the right direction).. but it still does not let me define any number of them.. I Do not want to specify the first parameter and if I do, … |
| | C program to replace all the letters of a string with all 26 alphabets and to do permutations to all the substituted ones and finally store the resulted strings in a file.. please help me out in fixing this situation.. To be clear. let me quote an example: If i … |
| | I've got an assignment due very soon that I can't for the life of me figure out. the basic idea is to create a program that allows the user to paint with large dots. If the R key is down the dot should be red, if the B key is … |
 | I got a warning from vs2010 at compile time (C4172 returning local variable or temp) [CODE] int foo(){ int* bar = Bar() } int* Bar(){ int array[2]; array[0] = 1; array[1] = 2; return array; } [/CODE] if I understand the reason for this correctly, that the array 'array' in … |
| | Hello all, I've just started to learn C++ since I have a bit of time on my hands. I was doing an exercise, learning functions and built a multiplier (very basic, enter 2 numbers and here is the result) strange thing, if the numbers you enter are very high, I …  |
| | Hi All. I am working on a program where I need help to convert a managed strinf type to unamanaged string to send as argument to function. Any help would be highly appreciated. |
| | I am trying to extract all the images in a PDF and then convert them into DIB format using an Acrobat plugin. First part is easy. I extract all the contents in the PDF, then iterate through them and whenever I find a PDEImage, I put them in an array. … |
 | I need to generate a random binary number (or decimal and convert it), and store that number in an array, needless to say im lost and would appreciate any help. Thx |
| | I am trying to create a statusBar in the dialog but it's returning false. not creating the status bar please tell me whats going wrong in this. Thanks for any help. I am creating the status bar in the OnInitDialog() function [code] CStatusBar m_wndStatusBar; // member variable in the dialog … |
| | I have been looking around the internet all day looking for a way to stop my program from entering an infinite loop when the user enters anything except a number when I cin an int. For example: [CODE] while(blah blah) { int x; cin >> x; if(x == 4) break; … |
 | I have errors for the template can any1 see anything wrong??? //Array.h [CODE]//Header file for Array.cpp. class Array { private: //Template for use with the Array's data type. //Member Variables. int size; int grow_size; int num_elements; public: //Functions. template<class Datatype> int m_size; Datatype* m_array; //Consturctor. Array( int p_size) { m_array= … |
| | i have a text file "test.txt" with "This is a secret file" in it. I want to read in the whole sentence in with white spaces and manipulate each character. How can i do this? My current method leaves out white spaces. [CODE]const int SIZE = 17; char string2[SIZE]; ifstream … |
| | Attached is my code for my homework for my C++ class. My problem comes from when I run the program. It returns a value of 1 every single time for the output of the "is it a leap year or not" part of my program. Then, when it outputs the … |
 | Ok, The problem is that when I execute this program (C++) what ever numbers I put into the answer slot it is given me the answer to the numbers of what ever I choose whether it would be Add, Subtract, Multiply or Divide as a Sum and not Difference or … |
| | I am trying to complete an assignment, but first need to get the program to run. I get a debug error, "numberArray being used without being initialized. Am I'm missing something? I am using three functions. one to get the highest number in an array, second to get the lowest … |
| | Hello can anyone help me with sorting this struct by name and surname? Ive done like this and it doesn't sort it. Thanks Code: [CODE]#include <iostream> #include <string> #include <vector> using namespace std; struct student { int st_studenta; string vpisna; string ime; string priimek; }; student vpis(int st_studenta) { student … |
| | Write a program that finds the factorial value of a given number as shown. Display an appropriate error message if the number entered is negative, or too big for the answer to be correctly calculated. Enter a non-negative integer : 5 5 x 4 x 3 x 2 x 1 … |
| | Hello! Im having trouble with reversing string in this program: [CODE]#include <iostream> #include <string> using namespace std; int numChars(string besedilo[]) { int znaki=0; int vrstica=0; for(int a=0;a<10;a++) { vrstica=besedilo[a].length(); znaki=znaki+vrstica; } return znaki; } int numWords(string besedilo[]) { int besede=0; string vrsta; for(int a=0;a<1;a++) { vrsta=besedilo[a]; for(int b=0;b<besedilo[a].length();b++) { if(vrsta[b]==' … |
| | Hi everyone, I'm a moderate-level C++ programmer who is a little rusty at the moment. I've got an object question which is driving me nuts. I'm sure this is a C++ 101 level question, but for the life of me, I can't recall the solution. Basically, I've got one object … |
| | I have a simple query, I am using code for "QUEUE IMPLEMENTATION USING SINGLE LINKED LIST" [url]http://ds4beginners.wordpress.com/2006/12/17/queue-implementation-using-single-linked-list/[/url] for my program but having an issue if you pleas help me. [CODE]public class queue { gcroot<message^> msg; queue* next; public: queue(); queue* enqueue(queue*,message^); queue* dequeue(queue*); void queue_display(queue*); void setbinding(String^); String^ getbinding(void); }object, … |
| | I saw the movie from the link[URL="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style"]http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Keynote-Bjarne-Stroustrup-Cpp11-Style[/URL] Could I find something like std::async from boost?Thanks a lot |
| | Recently I made a little program that could open files/exes/links. (facebook, vs 2012, ect ect) But it was in the command prompt. Worked perfect. I decided to make a forms application to do just the same, except through buttons instead of user input. But I keep running across this problem... … |
| | hey, today my teacher told us to use pipe and fork to write a program without teaching us anyway... if any would recommend some good tutorials would be great~!! and what does fork a child mean really mean(example would be great), and how write to a pipe? everything is done … |
 | Hello everyone, i am a current PHP programmer. I am wanting to start C++, is there any good websites i could start to learn? Or is there any tips for programming with C++? Also what is C++, what is it used fore etc.. Thanks, Marais |
| | I am creating a view in the dialog. when i am instantiating the dialog like this CMyDialog dlg(NULL, L"filename.txt"); dlg.DoModal(); CMyDialog constructor I overloaded so that it takes a file name. Now in the OnInitDialog() function I an intializing the view pointer m_pView and creating the view, toolbar , everything. … |
| | How we Comparing the text in the edit box and the tree item in Visual c++ Mfc |
| | What is the best way to change the following program into functions? Can someone show me as a good programming style? [CODE] #include <iostream> #include <string> #include <ctime> using namespace std; // Variables char R, playing, again; int roll, roll1, roll2, roll3, round, money, wager, win, loss, initial; string name; … |
| | header1.h [CODE] #include <iostream> #include <string> #include <cmath> #include <math.h> #include <algorithm> #include <Windows.h> #include <conio.h> using namespace std; int gotoxy_object(int x, int y) // your object { HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE); COORD point; point.X = x-1; point.Y = y-1; SetConsoleCursorPosition(hConsole, point); return SetConsoleCursorPosition(hConsole, point); } int gotoxy1(int x, int … |
| | First question here, so bear with me. I have been trying to create a view on a QMainWindow using a QDeclarativeView as the canvas, but whenever I try to switch the source of the QDeclarativeView my program segfaults and I frankly have no idea why, or how to fix it. … |
| | I am using CodeBlocks IDE with Digital Mars compiler, although my program is compiling and there are no errors, when I try to build my program, i get this error and the program isn't running. [CODE]OPTLINK (R) for Win32 Release 8.00.5 Copyright (C) Digital Mars 1989-2009 All rights reserved. http://www.digitalmars.com/ctg/optlink.html …  |
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