51,593 Topics
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| | Hello guys, This class creates aDie object by using aRandomNumberGenerator and the concept of composition. The program works if the member object aRandomNumberGenerator is not declared static. Otherwise I receive the error "undefined reference to aDie::gen." I do not understand why this happens, isn't gen within the class scope? Even … |
 | I can't figure it out. [CODE] #include <iostream> #include "GameMenu.h" #include "PlayerInfo.h" using namespace std; GameMenu::GameMenu() { } void GameMenu::display() { cout << "-----------------------------------------------------------------" << endl; cout << "Welcome to \"Hot or Cold\"" << endl; cout << "-----------------------------------------------------------------" << endl; cout << "OBJECTIVE:\t\tGuess the number in fewest number of guesses." …  |
| | I was wondering how one would go about creating a structure that cannot be used by itself, i.e. only through a wrapper class. My question is what would be the syntax for this construct? I'm currently on a personal project to make simple tests from old tests, all the questions … |
| | So i did tons of research for bout 2 hours on google and finally figured out how bit-level works when using XOR, but most of the time, the vars were already declared I wanted to know how to declare them but by user input. This is just an example i … |
| | [code]#include <iostream> #include <string.h> #include <fstream> #include "class.h" using namespace std; translator a[100]; int d,b,c; int n; int m; int x; int z; void translator::add() { ofstream iFile("singular.bin", ios::binary | ios::app); ofstream dFile("definition.bin", ios::binary | ios::app); ofstream pFile("plural.bin", ios::binary | ios::app); ofstream aFile("articol.bin", ios::binary | ios::app); ifstream gFile("nr.bin", ios::binary); gFile …  |
| | Hi I am trying to do a homework problem but this is about as far as i have gotten. need some help if you will. also am a complete novice so would like it if you explained in baby terms :) Sorry... am trying to solve this problem... You have … |
 | Hi buddies, I have a project that I need to be plugin based. I have never done that before and I have intermediate C++ knowledge. I have googled and found a lot of links including [URL="http://www.abstraction.net/ViewArticle.aspx?articleID=67"]this one[/URL]. It is helpful and I don't know if I understand well. Here is … |
| | hello, i have some simple questions but i don't know why my code is not correct see these questons: 1-Write an algorithm to accept three numbers and display the largest one? this is my code [CODE]int num1,num2,num3; cout <<"Please enter three numbers:"; cin >> num1 >> num2 >> num3; if(num1 … |
| | My daily text editing question.... I'm traversing a text file line by line adjusting the text so that the file eventually will match the syntax required to be run on a MIPS simulator (MARS). My issue is that whenever I see a line with the string "blezl" in it, I … |
| | how to add a stop watch with a pause button in my mfc application |
 | Ok so I dont think I have installed ANY compiler for C++ on my Windows Vista system. So I would need info about that as well. Anyhow. Just like java can be run using javac and then java w/e w/e... how do I run my .cpp notepad files via the … |
| | Guys, Why do we have these unresolved externals? This is the second time I am meeting them, and I'm sure it is a common problem. I've defined all the constructors including a void constructor just for the sake of (I don't actually need it). Pray tell where the error is: … |
| | How do I add a capital 'N' to the end of my loop so if the user clicks N or n then we will not continue?: [CODE] do{ }while (con!='n'); [/CODE] |
| | Would anyone have a C++ program that will prompt the user to enter the number of students and subjects that have been marked, the user should be able to enter the names of the students and subjects and the user should also enter the associated exam results. The program should … |
| | hi.. i'm trying to load a file with .pgm extension on picture box ... i really need help .. so .. any help here??!! :( |
 | Hello, i have a question to the people who already have read chapter 7-4 in this book. This example is driving me crazy! :x [CODE]typedef vector<string> Rule; typedef vector<Rule> Rule_collection; typedef map<string, Rule_collection> Grammar;[/CODE] So, this would without typedef be like this: [CODE]map<string, vector< <vector<string> > > >;[/CODE] But, why …  |
| | I am trying to make a program that lets the user create objects of a class UNIT which are then stored in a list. I was able to get that to work, but now I want the user to be able to find a specific UNIT in the list by … |
| | Hello friends, I am working on a problem where i need to dump huge amount of data from a file into a tree for analysis. The data in the file would be in specific format something like given below: node1 child1 child2 child1 child3 child4 child2 child5 child6 Since there …  |
| | I'm using a cross-compiler that generates MIPS binaries from c++ (mipseb-linux-g++). What I want to do is tell the compiler to use a specific ISA (namely MIPS I). From what I can tell this is a machine option that should be easily configurable. I've tried changing the option in my … |
| | Hello everyone! I wrote a basic c++ program using classes and pointers. Although it compiles without any errors, it will not run, saying "This program has stopped working". I am assuming that this issue may have been created by a memory leak, but I made sure to delete all dynamically … |
| | Hey All. I'm trying to figure out how to search for a string within my file and if the string exists, I want to get whatever follows it. Here's an example: HighScores.txt ---------------------------- Devin: 202 Corey: 185 Nick: 315 Patrick: 112 ---------------------------- If my program opens the file, I'd like … |
| | Hi all, I am trying to link to an external library (the boost regex library) under gcc. I am ashamed to admit that what I know about linking external libraries comes soley from modified snipets from online forums. My problem is as follows; I use to keep all my source … |
| | Hello, I am trying to calculate the value of pi (just for fun, I know it's already done for millions of decimal places), the program I made works fine, but the problem is that, it is constrained by the accuracy of [I]double[/I] values. Is there anyway to create 'extendable' floating … |
| | Hey, I have the following codes: [CODE] // In Form1.h protected: ItemGroup^ History; ItemGroup^ Favourites; [/CODE] [CODE] // In Form1(void) History = (gcnew ItemGroup()); Favourites = (gcnew ItemGroup()); [/CODE] [CODE] // ItemGroup public: ItemGroup(void); int Length() { return _length; } Item^ Items(int _index) { return _items[_index]; }; void Add(String^ _text) … |
| | Hey guys and girls, I am extremely new to coding, and I would appreciate some help. I am trying to write a code in which someone inputs a number, which is part of a file name, then I do stuff with the filename. Here is the part that I am … |
| | Hey guys i seem to be having an issue with the following code: [CODE]// show solution to variable scope problem using "the heap" // a block of memory controlled by the programmer #include<iostream> using namespace std; double* Function() { double* dLocalVar = new double; return dLocalVar; // give address of … |
| | I'm still interested if someone read this book since it's based upon standard C++?! Can one learn C++ over Visual... I mean what's difference anyway, except M$ is involved in Visual ?! |
| | I have this problem that I can't figure out, I can't figure out the line statement that needs to go in. Here's the problem [code=c] struct NodeType { int data; NodeType* p; }; NodeType* p; NodeType* q; p = new NodeType; p->data = 18; q = new NodeType; q->data = …  |
| | Hi, i'm one of those annoying students here to ask questions :) this is what is asked for my assignment >(Invoice Class) Create a class called Invoice that a hardware store might use to represent an invoice for an item sold at the store. An Invoice should include four pieces … |
| | Okay, so I'm basically trying to create a C++ program that determines the case of the letter. The program will basically ask for a letter input, uppercase or lowercase and then the program will say whether that letter the user inputted is an uppercase or a lowercase letter. Help is … |
| | please help! ineed a C++ program that will read and print the contents of a text file one character at the same time.. please please.. thank you..  |
| | #include <iostream.h> void main () { int i,j,temp,smallest; int list [10]; for (i=0;i<10;i++) { cout<<"enter a number\n"; cin>>list[i]; } for (i=0;i<10;i++) { smallest=i; for (j=i+1;j<10;j++) { if(list[j]<list[smallest]) smallest=j; } temp=list[smallest]; list[smallest]=list[i] list[i]=temp; { for(i=0;i<10;i++) cout<<list[i]<<endl; getch(); } |
| | hey guys! i decided to make my own programing language. it is called tempestX. the beta is not ready yet but when it is, i will provide a link for any one who wants to try it. here is a brief explanation: i was used to programing in windows batch, … |
| | i realize the topic isnt much descriptive but i thought that my code was a bit strange so i hope dw can give me a bit of info this is the most random thing ive ever made. on windows it produces quite a bit of ruckus in the console but … |
| | I'm doing this simple program that checks for number validation and I have an infinite loop in it. I can't figure out how to stop it. It's supposed to check for numeric digits only, but when it finds something other than the above, it hangs up in the loop. Could … |
| | Hi, I need help in converting a number which is written in scientific notation into the int. For example I have this number: 6.538e-5 and its format is string. Any suggestion how can I convert it to the integer? |
| | I have several strings in a text file and I want to search each string for a word starting with "<" and ending with ">". I then want to replace everything from < to > with a new string. So here's a couple lines I want to convert: [CODE] 400110: … |
| | i am using boost library.....and when compiling i am getting an error Error 1 fatal error LNK1104: cannot open file 'libboost_thread-vc90-mt-gd-1_43.lib' I have installed boost libraries.... any Help please. |
| | Hi, I'm writing a code that takes a file name from user and opens it if it exist and if it doesn't asks for another file name. What i wrote is this: [CODE] #include <iostream> #include <string.h> #include <string> #include <stdlib.h> using namespace std; int mani() { string input; cout<<"please … |
| | I have written up a c++ program that will read from a file. The file consists of only numbers ( from 1 to 50) and spaces with no other special characters. The main aim of the program is to tell me how many times the numbers appeared in the file …  |
| | I have an assignment for a class that wants me to read lines from a file and output a count of the vowels and whitespaces per line, and also count a total of characters in the entire document so I can calculate a % of vowels used overall. I did … |
| | Hey, I apologise for the noobishness of this question, but I am unable to move the form. [CODE] if (Screen::PrimaryScreen->Bounds.Top != Screen::PrimaryScreen->WorkingArea.Top) { this->Left = Screen::PrimaryScreen->Bounds.Right - this->Width; this->Top = Screen::PrimaryScreen->WorkingArea.Top; } else if (Screen::PrimaryScreen->Bounds.Left != Screen::PrimaryScreen->WorkingArea.Left) { this->Left = Screen::PrimaryScreen->WorkingArea.Left; this->Top = Screen::PrimaryScreen->WorkingArea.Bottom - this->Height; } else { this->Left … |
| | I'm took an fundamental of C++ . Here is my code, could you please help me to point out the error . Thanks [CODE]#include <iostream> #include <cstdlib> #include <iomanip> #include <string> using std::cout; using std::cin; using std::endl; using std::string; using std::fixed; using std::setprecision; int main() { int unit_of_desks = 0; … |
| | Hello everyone I post last night with this same code, and I got a lot of advice. But there are 3 more errors that persist after I changed the code a bit. Anyone know whats wrong? Here are the errors: 1>------ Build started: Project: circle, Configuration: Debug Win32 ------ 1>Compiling... … |
| | I've run into linking problems before, so I thought I had them figured out. This one I'm using every tool I have, but I can't seem to identify what the issue is. Did a build from the yaml site yesterday, I keep getting this linking error at runtime. I set … |
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 | Hi ladies and gentelmen Merge sort program has 3 function . 1-func that sorts first array ascending 2-func that sorts other array descending 3-func that merges these arrays together I wrote it by Borland 5.02 . Good Luck! |
| | I'm creating a text-based rpg and I'm having some trouble... What I would like to do is implement a room type that would store description and among other things, have a navigation system (I.E. GO NORTH). Since I'm using c++, I've gone ahead and created a rooms class.. but that's … |
| | Hello is there any open source can i use for OCR !! or any one have a tutorial to start a handwriting ocr detection thanks |
| | Does Anybody know how to use C++ to get information from a database? I have this assignment due but , I do no know to incorporate a database into my program. My program is to allow a user to choose from NFL football teams,when the user picks the team , … |
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