49,766 Topics
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| | Metro supermarket is a new supermarket opening in Riyadh. It offers attractive discounts for its customers. Write a program that will display to the user his new total price after discount. The program should read the total price from the user, calculate and display the new total price based on … |
 | Mmm, I just love these error messages, I don't understand them what-so-ever and I can't interpret them. (Unsure where the post should be in the forum) I'm getting this error message at build time (Using VC++): [code=cpp]1>Linking... 1>main.obj : error LNK2019: unresolved external symbol _DirectDrawCreate@12 referenced in function "long __cdecl …  |
| | I've been trying to solve this problem for a while now with no luck. I want to monitor an input buffer(cin) for a keypress. The catch is, I don't want it to hang if the buffer is empty. [INLINECODE]getch()[/INLINECODE] and [INLINECODE]peek()[/INLINECODE] won't work because one waits for a keypress and … |
 | Hello again all!!! I just have two quick questions... 1.) Is it possible for one to run a program through the "system(command)" and have the output come out on top of an SDL program? Like if I had a background of some sort and typed "system(echo "Hello!")" could I have … |
| | well i'm trying to get my shuffler to work but i keep getting one. any ideas? #include <cstdlib> #include <string> #include <ctime> #include <iostream> using namespace std; const int number_of_cards = 52; void shuffle(int list[], int size) { srand(time(0)); for (int i = 0; i < size; i++) { int … |
| | Good time of the day for you) I've got a simple question, but just unable to find an answer.. How to make dialogue item (button/scrollbar) visible/invisible? I've tryed ShOwWindow, but i can't point it to my button. Please help |
| | Hi I am new to java and need help . Whats the C++ map equivalent in Java. In C++ i can use map for three purposes like i) Sorting while insertion into it ( efficient ) ii) Key ,value iii and for storing unique item. I came to know there …  |
| | [U][B]Question detail as show as below:[/B][/U] How to design a simple grading system which able read data of a group of students. The data includes students’ names, nations, and marks of four subjects. This data is stored in a text file created by a text editor (notepad etc.). The system …  |
| | I have class: [code=c++]template <class T> class Graph; And I have a function: template <class T> void Graph<T>::erase_greater(T needle) { if(TEMPLATE TYPE IS "STRING" OR "CHAR") { do nothing; } else { if(TEMPLATE TYPE IS ONE OF THE INT TYPES) { if(strlen(var1) > strlen(var2)) { USE Var2; } else { …  |
| | Hi there, Say I have the following while loop, that loops on the condition that a lne (a string) is received from a file: [CODE]while ( getline( inData2, line ) ) // Increment rows till none left { if ( !line ) { cout << "No data entered. Please enter …  |
| | i have written my code and feel exhausted. when my code finds in error on a given input text file, it does a great job in finding the mismatched symbols. what can i add to show there is no error when no error is found. i attempted adding another else …  |
| | Hey Guys, I am new to the concept of Arrays and I need a little help. I have included the instructions for the problem as well as the code that I have so far. Can you help me with what I am doing wrong? Thanks! Write a program that asks …  |
| | Hi guys, I'm getting " SingletonMain.C:18: undefined reference to `Singleton<MyClass>::instance()' " compiling error. It doesn't make sense to me because MyClass inherits instance() from Singleton, doesn't it ? If someone could shed some light on it, I will be grateful. SingletonMain.C #include <iostream> #include "Singleton.h" using namespace std; [CODE]class MyClass … |
| | Hello I need to create an array of pointers for class dog is one class and showDog is the derived class. I need to input from a data file and store the variables to these classes. In the file there is a D for dog or S for showDog between … |
| | Hello everyone, as you can see I am new to this forum, I have had, not huge experience, but a bit of experience with c++. So I decidedt to make a keylogger. I know there are other ways to make this code shorter but for now i would like to …  |
| | Hi, i'm having some problems with my inheritance homework. It consists on writing a progrma that mimics the String lib by overloading different operands and then create two derive classes that will revert a string and that will change the cases to lower and upper. This is as far as … |
| | /* Write a program the nested for loops that display the output below. 0 0 1 0 1 2 0 1 2 3 0 1 2 3 4 0 1 2 3 4 5 */ [code=cplusplus] #include <iostream> #include <cmath> #include <cstdlib> #include <iomanip> using namespace std; int main () … |
| | Hello everyone I'm having a little difficulty, hopefully you guys can help or point me to the right direction. I'm trying to get a pointer from a class point to another pointer from another class. Naturally it doesn't work because the assignment operator doesn't allow us to do this so … |
| | Hi, I have completed a C++ application.It is about 3.5 mb in size. I need to create a demo version of this application,The application should not work after 30 days of installing and using it.. Is there something any software that allows you to create demo versions or what steps … |
| | Okay, here's the challenge, I know its probably pretty easy, but i'm just starting to learn and I have the challenge problem that I can't figure out, any help/guidance would be appreciated! This program will accept two numbers from the user and display the sum of the square roots of … |
| | I am getting a segmentation fault when i run the follwing program. This program takes in a const char* and returns the integer format. I also need advice on converting a C++ Octal or Hexadecimal Notationed string to an integer. Here is the code [CODE=C++] #include <iostream> #include <cstring> int …  |
| | Hey all. First time user here :) Im making a Windows XP C++ console application with Code Blocks (GNU GCC Compiler). This program is written to control another program that is missing some features i need (read input from external source). Last thing im missing from my program is little … |
| | I'm writing a simple number generator program and I'm trying to find an easier way to get a random number, store it then display it. The catch is I don't want duplicated numbers (each need to be different). here is what I have so far, it does work but I'll … |
| | Hi, I am having a problem with the following function: [CODE]void calcEnergy( vector< vector<double> > &Energy, vector< vector<double> > &Data, const double Constant ) { double Time = 6; // store the change in time double energy ; // Temp variable to store energy double v1,v2; for ( size_t i … |
| | Hi there, I have an array of strings defined in the following way; [code] string wordbank[]={"yes", "no", "hello", "goodbye"}; [/code] My problem is I would like to create a seperate array of characters for each element of that array. Something of the form; char *word_0[]={'y','e','s'} The things I have tried … |
| | Hi, I wish to know that the cause of the following error when i run the program : a) Is memory leak in the program B) The system on which i am running the program has insufficient memory. [ICODE] terminate called after throwing an instance of 'St9bad_alloc' what(): St9bad_alloc[/ICODE] Thanks |
| | In the following program, implement the function a. int *biggest(int *a, int count); This finds the largest element in an array of integers. #include <stdio.h> #define SIZE 16 int* biggest(int *a, int count); int main(void) { int values[16] = { 47, 17, 38, 91, 33, 24, 99, 35, 42, 10, … |
| | I tried searching the forum, but I couldn't find any threads that really dealt with what I'm trying to do here. I have a struct set up with three fields (shown below). [code] struct StudentInfo { char id[10]; double mark; char grade; }; [/code] [I]Note that the id MUST be … |
| | can someone teach me from the basics how to use and become comfortable with graphics.h???plz i need it badly for my project at school and out of my interestto complete my project within august.im unable to continue without graphics.h and dos.h |
| | This is my first year of BIT and im doing C++ for first year atm. Now i have this assignment which is i have to generate random number, and prompt the user to quess the number. when they quest it right i have to prompt that they are right and …  |
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