49,765 Topics
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 | I saw this example while i am searching about vectors.. [CODE] vector<double> student_marks; // no size specified: vector contains // no elements int num_students; cout << "Number of students: " << flush; cin >> num_students; student_marks.resize (num_students); for (vector<double>::size_type i = 0; i < num_students; i++) { cout << "Enter … |
| | Hello all. I have a question with no code because i'm a beginner at mfc and find it very confusing. I can see that there is a message loop in mfc. From what i understand it is like an event in windows form applications. In my mfc application i want …  |
| | The below code is what I have.. It's a custom type I made called Points that stores co-ordinates on the screen.. The problem is in the PointsArray Struct. When I declare one like so: [CODE] PointArray P; Point A(10, 5); for (int I = 0; I < 5; I++) { … |
| | Please help me its urgent... I have a MSDN Queue class, I need your suggestion can I make a message class and enqueue its objects as an element. [CODE]// new.cpp : main project file. #include "stdafx.h" #include "message.h" using namespace System; using namespace System::Collections; void PrintValues( IEnumerable^ myCollection ); void … |
| | I'm an absolute c++ beginner so please be patient. [CODE]#include <iostream> using namespace std; double array_of_5[5] = {1,2,3,4,5}; double sum(double a , double b ); double a= array_of_5[2]; double b= array_of_5[2]; int main () { cout<<"The sum of two members of the array is: " <<sum<< endl; return 0; } … |
| | Hi every one this is vivek.I want a projent in oops which should be different it should be totally object oriented and i am getting confused what to do for my project.Please its urgent.Please give me some idea note:- only c++ should be used for coding  |
| | Read 10 numbers in an array. Each number must be between 10 and 100. As each number is read, print it only if it is not a duplicate of a number already entered.  |
| | i saw that we should not use the combination of new operator and free for allocating and deallocating memory in c++.. Is this right? is there any reason other than saying that the combination is calloc/free and new/delete? please help me.. thanks in advance |
| | Hiya: I have tried to reproduce this equation to simple reflect a ball after colliding with a paddle (or screen bounds) R = V – (2 * V[dot]N) N I don't want to take the easy rout of just negating the velocity but is my first time trying to implement … |
| | Hi, I'm having a problem with taking the user input from a richtextbox in Unicode and writing it to a Unicode text file. I'm able to read a different Unicode file and write it to the new file, but when it comes to writing the contents of the richtextbox to … |
| | Hello I'm new here and I've been up two night's trying to figure out how to write a program that will convert numbers to word. If anyone can help please respond to the post. here is what I sort of figured out so far. As you can tell I'm still … |
| | Alright. I am (attempting) to use this [URL="http://sites.google.com/site/rcorcs/download/systemsoftware"]http://sites.google.com/site/rcorcs/download/systemsoftware[/URL] simple database library in VC++ 2008 Express. I admit that I am a newbie to C++, since Ive used only "light" programming languages like python, php, java. To use it I have the header files, and as "lib" folder I have a …  |
| | How can I forward declare a struct/custom type in my include? I'm trying to write an include but it keeps telling me incomplete type or type not declared.. I do not have a .CPP to go with it.. I wrote everything in here as I have never written an include … |
| | so i have a char array that can hold up to 1000 items.. but it might not be filled up completely. How can i prevent the program from printing garbage on the screen after printing the real values from the array. btw i am reading from a file, sorting by …  |
| | the program wont compile because it found and error with ReadFromFile class method in the main.cpp file. Any help would be appreciated. class inventory deceleration in "Inventory.h" file [CODE]#ifndef INVENTORYDEF #define INVENTORYDEF #include <iostream> #include <fstream> int const MAXNAME=30; int const SIZE=2; class Inventory { private: int quantity[SIZE]; float unitcost[SIZE]; … |
| | I'm writing a program to convert Decimal numbers to binary, hexadecimal, and BCD as a refresher before i start getting code assignments in school. I'm almost done, but i have a seg_fault (compiler says decToHex function) in 1 function and i am hoping for some feedback on the others. I'll … |
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| | Hi, I'm new here so I'm not sure if this is the right place to ask for homework help. Sorry if it's not proper :) This is from my Data Structures class. I'm just about done with the assignment but it's giving me memory leaks and I'm not sure what's …  |
| | I have the following input and my program is not running: 1 3 2 1 3 7 8 [CODE] #include<iostream> #include <cstdlib> using namespace std; int main() { int arr[7], min, i=0, j=0; for(int i=0; i<7; i++) { cout<<"Enter value at arr["<<i<<"]: "; cin>>arr[i]; } min = arr[j]; for(; i<7; … |
| | I got a problem regarding searching for a string in a file.txt. Program takes input from user and searches for the string and outputs the first string that finds. Ex: user enters NIW and program should output the string DANIWEB(DA'NIW'EB) I can get the input from user and I dont … |
 | [CODE]#include<conio.h> #include<iostream.h> void main() { clrscr(); long input,negaAr[10],posiAr[10]; for (int x=0;x<10;x++) { cout<<"enter:"; cin>>input; if (input<-1) negaAr[x]; else if(input>=0) posiAr[x]; } cout<<"positive:"<<posiAr[x]; cout<<"negative:"<<negaAr[x]; getch(); }[/CODE] i dont whats thee problem of this, ihave to input 10 integers and display the number of positive and negative. |
| | can we pass condition of if statement as an argument in any language????????? [CODE]class Matrix { static void loop(char a,char b,char c) { int a[][]=new int[3][3] ; byte i,j ; for(i=0;i<3;i++) { for(j=0;j<3;j++) { if(a b c) System.out.print(a[i][j]+"\t"); else System.out.print(" "+"\t"); } } public static void main(String ar[]) { loop('i','>','j'); …  |
| | I have a project that requires us to perform matrix multiplication via multi-threading, using the Windows API. I've got the basic code running and everything is well under sane/ideal conditions. But if my input matrices go beyond 10x10 the program ends up failing on WaitOnMultipleObjects(...) and runs the main thread … |
| | I'm learning linked lists in C++. In an exercise I have to duplicate H time a give item. So I thought in this method: [CODE]void duplicaNodo(int item, int &H, Pnodo &L){ //duplica un nodo H volte, scorrendo tutta la lista Pnodo Temp, Temp2; if(L!=NULL){ if(L->info==item){ for(int i=0; i<H; i++){ creaNodo(item, … |
| | So, I am fairly new to C++ programming, so if you can help me, please try to keep it simple...I'm still learning. What I'm trying to do is assign a score to a grade letter (A,B,C,D,F) and then display it. This is what I'm have: [CODE]string lettergrade1; string lettergrade2; if … |
| | I am unable to figure out how to check to see if there is more data in the file. I have a input file, where the last two lines are just new lines with new data. When I run my code, I get the last line of data in the … |
| | Hello, I am having trouble going about taking a text file with a bunch of entries, like A43 A32 B45 A35 B23 etc, and having the numbers with A infront stored in one vector and the numbers with B infront stored in another. Anyone have hints for me? so far …  |
| | I am a beginner to computer graphics and I have to add animations to the image of my national flag which look like [URL="http://4.bp.blogspot.com/_R_714JbVSys/SbJm90IMkpI/AAAAAAAAAEo/IQQ_YyvV2_M/s320/indian+national+flag.jpg"]this[/URL]. I have designed the flag alright.But I don't know what kinds of animations are possible and how. Could someone please guide me how to add animations …  |
| | I'm writing a program to add two hex numbers of up to ten digits, and I'm recieving an "assertion failure," and I can't figure out why. Any help would be greatly appreciated. Thank you for you time! [CODE] // hex addition.cpp : Defines the entry point for the console application. … |
| | Hi guys, I'm looking for a little help with Apache Xerces. I am currently trying to use Xerces-C++, but I'll soon be using Xerces-Java. As I look the the C++ programming guide and the DOM programming guide, a lot of my questions remain unanswered. The sample codes lack comments on … |
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