49,766 Topics
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| | If I wanted to access a function that is in a derived class from it's base class, what would be the best way of doing so? I have experimented with functions like [icode]Interact( char *pCommand, char **pArgs )[/icode] which is inside the base class, and can be overidden by the …  |
| | Ok so I am a total newbie, and for our last programing assignment in my class we are going over Binary Search Trees. Out assignment is to take an older program and make it into a binary search tree. I am using Visual Studio and I have gotten past all … |
| | Hi! I just upgraded to win 7 64 bit. I have tryed it both on cygwin compiler and MinGW compiler (toolchain) Working on eclipse. My code works perfect in Linux/ubuntu environment but running in win 7 environment I have the following problem. My last cin does not work. The input … |
| | [CODE] using namespace std; int main(int argc, char *argv[]) { int item_weight; // ITEM WEIGHT IN GRAMS double item_unit_price; //ITEM UNIT PRICE ($) int quantity_required; // QUANTITY REQUIRED //ENTER ITEM WEIGHT IN GRAMS----------------------------------------------------- cout << "ENTER ITEM WEIGHT IN GRAMS: "; // prompt for input item_weight cin >> item_weight; // … |
| | Im have trouble complete on what i have. Looking for some idea's I'm getting a exit error and don't know what to do? Please Help [CODE]// This is a program that is an ATM. #include <iostream> #include <cstdlib> #include <iomanip> using namespace std; void welcome(); void menu(); void amountDeposit (); …  |
| | I'm having difficulties understanding and printing the max value of a size_t type. Apparantly the size_t is typedefed to a unsigned long int on my system. Is this safe to assume its the same on all c++ compilers? The 'sizeof' function returns the number of bytes(size char), used to represent …  |
| | I am trying to write a racing game but i need some winning conditions. Im not sure where to start, any pointers would help. Im using Visual C++ |
| | I'm towards the end of my problem. I just need assistance when comparing classes. I'm trying to compare the two Grade point averages, and whoever has the highest, I would like to be announced or displayed. Any help or hint is appreciated... [code] #include<string> #include<iostream> using namespace std; //class of … |
| | - I've Implemented a very simple non repeated random generator and I want to share it for anyone .. - I want Your Opinions Please , and any comments about my code - Anyone notice any fault in the result (any repeated numbers), please report me - Thank You Very … |
| | Hi, I've just joined this website for help with some C++ problems. I am new to C++ and face the task of reading from a text file and outputing the result in another text file using the[B][COLOR="Red"] istream& operator >>(istream& stream, storage &s)[/COLOR][/B] it looks like something underneath: istream& operator … |
| | Ok so i have to print a table of data like so.. SURNAME LAST NAME ADDRESS POSTCODE right? but the problem is the text won't align to the appropriate heading. so when i try to use tabs if someone has a longer surname or whatever this happens. [CODE]SURNAME\t LAST NAME\t … |
| | I need clues for making a programe suppose there is sample data set in file sp13Input.txt. A 555-1234 B 555-1111 C 555-2222 D 555-3333 E 555-4444 F 555-5555 G 555-4321 z 000-0000 we have to make linear search,by giving the number and it will display the name of the person … |
| | I am trying to get music to loop in the background of a game. However im really not sure how to do this. Can anyone give me a starting point please? I am using Visual C++ btw. |
 | Hey all I have been writing my own implementation of a BigInt class and I think I have most of it down. I am using a vector<int> container for my number. I'm curious to what you guys think about. This is my first program using 1000+ lines of code. Please … |
| | I am using MS SAPI (5.1 or 5.3) to read a script using a call like this (in MS VC++): [CODE]Voice -> Speak(script.AllocSysString(), SPF_DEFAULT, NULL);[/CODE] I want to be able to limit the total duration of the time spent reading the text to length X (hard limit). Is there a … |
| | Hi, I want to ask you, how can I do a program, which will be read characters from a keyboard in random time. I mean it, that if I write some characters on a keyboard in every time, when I come to the PC, it save it to txt and …  |
| | So I have this assignment in which I need to use Selection and Projection operators on n-ary relations. The book really doesn't cover it in a way I understand and doesn't explain it in terms of c++, so could someone help me out. Could someone give me a "c++ code … |
| | Hi, I've been working on this one problem in C++ for hours, starting last night. I haven't been able to figure it out completely but have been able to complete 3 of the 6 functions required for the program. I'm in the process of completing the fourth and have run … |
| | Hello guys, I've a class with a cpp and .h files. It's a part of a large program. I would like to create an array of structs and use it wherever in the same class, i.e. I want to initialize it in a specific function and use it in other … |
| | In my code my "ndeps" is not being declared in my "setdepends" function and i dont know why. Can anyone help me figure out why? [CODE] #include <iostream> #include <fstream> #include <cstdlib> #include <cstring> using namespace std; class Object{ private: Object **depends; int ndepends; public: Object(); char *id; enum Color …  |
 | I got some linker error, couldnt find the mistake. What is wrong? [CODE]#include "myStack.h" //Imports the Stack header file containing the declaration of the member functions myStack::myStack() /*The stack is initialized as empty */ { count=0; } //end of Stack::Stack constructor Error_code myStack::push(const Stack_entry &item) /*If the stack is full … |
| | Hello fellow daniwebians. Consider the following constructor: [CODE=C++] Vector3f::Vector3f(float* f) { x = *f; f++; y = *f; f++; z = *f; } [/CODE] Now let's create an object of the Vector3f class [CODE=C++] //Create an object of Vector3f Float f[] = {13,3,7}; Vector3f myVector(f); [/CODE] All is well right … |
| | Hi, I have a special question about banners that usually is possible to put on a webpage with HTML code. The HTML code holds some addresses to this specific banner in form a http:// addresses. As C++ can call addresses like this my quesiton is this: Is there any possibility … |
| | Hey, before everything, sorry about my english, i will do my best I'm really new at this, i just want to know where i should start learning about security, control of ports, control the sockets already initialized for other program, viruses, spywares, hack, nukes, etc.. I'm just asking for sources(i … |
| | Hi, CPP : How do i call a function in another program? the main function is in one program and i want this main function to call a function in another program. Can anyone please give me the sample code for this? Thanks in advance |
| | Hello all, I am trying to find a way to graph the [URL="http://en.wikipedia.org/wiki/Fresnel_integral"]Fresnel integrals[/URL] for a Numerical Analysis class. We have to use Romberg Integration to do this, and I suppose I am confused as to how I can graph this (I am confused when it comes to integrals.) I … |
| | So far I have this as my main [CODE]#include <string> #include <iostream> # include <fstream> #include "money.h" using namespace std; int main () { ifstream infile; ifstream outfile; infile.open ("transaction.dat"); int precision = 6; int width = 20; if (infile.fail ()) { cout << "Opening input failed" << endl; } … |
| | Hi; I have a Q/A based game which randomly selects questions that are stored in access file table. I have define a vector and a stdstream that takes no of questions as input. The no of records are 300 and I want the program to select only 30 questions but … |
| | trying to make a tictactoe (in class) c++ program but i cant seem to get the board printed when i enter the 2nd set of numbers. if you see nay other mistakes please let me know ..... thanks in advance first time here :) [// [CODE]#include<iostream> using namespace std; const … |
 | I am currently writing a program called Encoding and Decoding strings with the Enigma Class. This was a class assignment, but it already has been turned in, and I would like help (I am not looking for the work to be done for me) so I may learn from my … |
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