49,766 Topics
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 | I'm new to C++ and here's a simple assignment. I'm not sure how to pull this off... ANY help will be appreciated . Here's the code for the assignment... You have to implement a function called approachPi that takes no parameters, and has the return type double. This function returns …  |
| | Which of the following are valid function prototypes? x one(int a, int b); int thisone(char x); char another(int a, b); double yetanother; void thelastone(); void (function1) void; void function2(void) void function3(n, x, a, b); x void finction4(int n, float, char c); x void function5(int, a, int n); Which of the …  |
 | I typically make a Types.h to define all of my types in and then include that in all of my project files. I haven't ever seen this anywhere though, so I assume it is "bad/wrong". The situation is often like this: Consider a class Gardener that needs to know type …  |
| | Hello, I have been tasked with writing a test application to convert between geographic coordinate systems. Now math is not my strong suit but I was assured I wouldn't actually have to do any of the calculations since the formulas are provided. The trouble is trying to get the lengthy … |
| | I have a large data base that looks like the following: Energy position 5.639792 1.36 4.844813 1.89 4.809105 2.33 3.954150 2.69 2.924234 3.42 1.532669 4.50 0.000000 5.63 The actual data contains thousands of rows. The first column of the data is the particle energy and second column is the particle …  |
| | hi, im creating a simple image editor/drawer and im having problems with flicker when the canvas is refreshd on draw. ive got [CODE]frmPMain->DoubleBuffered = true;[/CODE] on my form, but im still getting bad flicker when i run my draw shape code such as [CODE]void Pixie_Draw::DragSquare( int X, int Y, int … |
| | Hello, Ive been working on learning opencv by example and have learned lots but have some confusions/confusion in some parts, and would appreciate if you guys could help me out.. First off I have 5 matrices, and I want to combine them into one big matrix.. for this reason I … |
| | Hi Acctualy i have a cinema project that i don't know how to start it and write it. If it is possible, please help me. I should write a project that show a cinema with 320 sits and some of them is for premiere, Twin, Gold and Economy. This is … |
| | Here is some question i get from my friend recently ,it's a C++ programming question ,and i only managed to do some of it . So i hope can discuss these question over here , the way to do it.Thanks. Q1 . REQUEST FOR PROPOSAL When government ,military ,or commercial … |
| | Hi, i need some pointers on how to approach my assignment. Dont want you to write me the code, just please point me in the right direction. I need to create a C++ program that requires the user to enter 10 student id numbers and the grade they received in … |
| | Hi, Can anybody explain me how to create a sealed class on c++. thanks in advance, kedar |
| | I have a hardware controller that I purchased from a vendor that provided a SDK in VB6. The primary reason I chose their controller was the class and SDK that I could get started with immediately. In the meantime, the vendor decided that dot net VS6 was best developed and … |
| | Hi guys. At work we have lots of certificates to sign/encrypt/decrypt different kinds of documents/data and lately there's been a few occasions where we almost forgot to renew them before they expired. I am currently working on a small monitoring tool, that will notify us of certificates expiring soon. Trouble … |
 | hi, i am trying to make a calculator and i have this code [CODE]#include<iostream> #include<sstream> using namespace std; int main (char argc) { int l = 1; for(l = l; l > 0; l--) { int q = -2; string n1 = "1+5"; int n; int e; stringstream(n1[q=q+2]) >> n; … |
| | I have a long stream of numbers that I need to be able to input all at once (basically copy and paste) into an array somehow. I need to do this so I can make every pair of those numbers to correspond to a letter. For example, I need to … |
| | I am trying to change assign the pointer "c" to the pointer "a" below using the function "change()", but I am doing something incorrectly, not exactly sure. The direct assignment within the main() function works (ie a = c), but does not work using the change function. [CODE] void change(float … |
| | I want to make a Program that takes two inputs one initial number and one final number for example if I input 1 as the beginning number and 13 as the final, I would like the program to output the Fibonacci sequence: 1,1,2,3,5,8,13.. I hope someone understands it.. Pleease i … |
| | The objective: take an integer (e.g. 1000000), and by using recursion, ultimately return this string: 1,000,000. Can anyone figure out how this problem could be solved specifically by taking an integer and returning a string? string addCommas(int n) { // ??? } Thanks for any help or direction  |
| | Hello, for my assignment, I have to implement 2D Gaussian convolution using 1D Gaussian masks. I have two pgm files. I know the theory but I do not know where to start and how to deal with pixels. can anybody help me? |
| | I am building a library of matrix and vector operations. As my library has grown bigger, I have found that there are MANY by element operations which I need to program. For example, if the user wants to multiply each element in the matrix by 2, or if the user … |
| | In C# if you want the thread to pause you would use: [CODE]System.Threading.Thread.Sleep(300);[/CODE] However, I cannot seem to find a C++ equivalent to this? How would I do this, or is it just not possible? Any help is appreciated. |
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| | (Business Accounting) CS Bank Limited updates its customers’ accounts at the end of each month. The bank offers two types of accounts: savings accounts (s) and checking accounts (c). Every customer must maintain a minimum balance. If a customer’s balance falls below the minimum balance, there is a service charge …  |
| | Hello, my programming project requires me to write an overloaded function max that takes two or three parameters and returns the largest of them. I'm having trouble with the program outputting the largest number, with my code below it just says the largest number is 0 no matter what numbers …  |
| | Good day to all of you. I'm looking for advice for my code below. My code was intend to print out a set of asterisk base on the rows and columns in my array(cinema[20][23]). The code works fine and i was trying to print out numbers (which is from 1 … |
| | * How does stringstream work? Someone kind of explained it like, in cout it sends it to "standard out stream" or something, and using stringstream, you stream it into that instead. [CODE]stringstream a; int b=12; a << b;[/CODE] * How can it convert characters into int and such? [CODE] char …  |
 | [CODE=c++] #include <QtGui> class MaskedLabel : public QLabel { protected: void resizeEvent(QResizeEvent* event) { QLabel::resizeEvent(event); QPixmap pixmap(size()); pixmap.fill(Qt::transparent); QPainter::setRedirected(this, &pixmap); QPaintEvent pe(rect()); paintEvent(&pe); QPainter::restoreRedirected(this); setMask(pixmap.mask()); } }; int main(int argc, char* argv[]) { QApplication a(argc, argv); QLabel* label = new MaskedLabel(); label->setText("Qt Centre!"); QFont font = label->font(); font.setPointSize(72); label->setFont(font); label->show(); … |
| | Dear friends: I run my C++ programm in opensuse linux, after it sucessfully run, the system give me the following feedback.Could you please tell me what wrong with my program. [CODE]*** glibc detected *** ./flowingheat: double free or corruption (!prev): 0x00000000007e28b0 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x733b6)[0x7f9b6dc2c3b6] /lib64/libc.so.6(cfree+0x6c)[0x7f9b6dc312dc] ./flowingheat[0x411cde] ./flowingheat[0x40e9fe] ./flowingheat[0x40af3b] … |
| | Dear friends: I have a txt file to read. I only need the number of ELEMENTS and the ENTITIY NAME. which function should i use to read in these two values. Regards [CODE]GROUP: 2 ELEMENTS: 4 NODES: 2 GEOMETRY: 0 TYPE: 0 ENTITY NAME: WALL_LEFT 33 16 10 34 20 … |
| | Looking for a good manual on c++. Anyone know where i can get one? Thanks Jeffrey Revell Reade  |
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