49,757 Topics
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 | The default copy constructor should work for the Polynomial class below because it does not contain any dynamic data types. However, when I create a new Polynomial via the copy constructor, it prints 0 for the value of each coefficient. How can I fix this? [CODE]#include <iostream> #include <vector> class …  |
| | Hey. What's better, i++ or ++i? Well ++i returns the value after it's incremented, but which is faster? (not necessarily for int, user-defined types with operator++ overloaded too.) |
| | #include<iostream> using namespace std; int main() { int i,N=5,j; for (i=1; i<=N; i++) { for (j=1; j<= N-i; j++) { cout << " "; } for (j=1; j<=2*i-1; j++) { cout << j ; } cout << endl; } return 0; } the display i want is 1 121 12321 …  |
| | i have a dialog based application with a combo box that stores the names of a set of cameras.what i want to do is, play the video from the corresponding camera when i select a name from the combo box.the video has to be played in a vlc player.i use … |
 | Hi, I have done some reading and searching without finding how subclasses relate to friend classes. Here is a little scenario: [code] class Dog; class Cat{ public: int getAge(){return age}; protected: friend class Dog; int age; }; class Dog{ public: Boolean foo(){return True}; protected: friend class Cat; }; class Puppy … |
| | Does anyone know how to solve this question............ An election is contested by 5 candidates.They are numbered 1-5 and the voting is done by marking the candidate number and the ballot paper.Write a programme to read the ballots and count the votes cast for each candidate using an array variable …  |
 | What do you think of this? [url]http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml[/url]  |
| | Is it possible to store * and # in an array? I thought I could do this through the data type char. On top of that I was wondering if I could check the array elements to see if the element equaled that character, but I don't think that's possible. … |
| | I have got a C++ program that accepts a string and gives output as a string now what I need do is take the string input from the textbox on a webpage and then submit the result to a database? Submitting to database is a later case but first tell … |
| | How would I go about deleting all '' characters from a string? [B]I am using the command line to pass parameters with parenthesis, so anyone who uses my program will need to use '\(', '\), '\[', '\]', etc.[/B] |
| | I have an assignment for my class that asks to modify my previous assignment to include a function for both A and B. The function for A should have the quantity of numbers passed in as a parameter and needs to return the largest number. The function for B should … |
| | Hello, I'm embarrassed for asking this question but for the life of me I cannot find an answer. This ultra simple code is giving this error as well as any other function that I'm trying to write. [CODE]a function-definition is not allowed here before '{' token expected `,' or `;' … |
| | a mouse is trapped in a labyrinth.. and he has to find the cheese! the input is W and H (height and width), and a graph like this one: [CODE] ##...# C###.. ...... .####. .....M [/CODE] i'm supposed to calculate the shortest amount of steps he needs to make to … |
 | Hey guys, I come over from C, wanting to learn C++. I have a nice little book but figured I could use a project to get me going. So I magicly crafted code, and ran into this problem: [icode]C:\Code\Rapture\World.h|7|error: ISO C++ forbids declaration of `Breeture' with no type|[/icode] With this … |
| | Hello! All Well its a problem i have no idea about it ... check dis : i created a small graphics program.. like which draw a circle on screen.. it works very fine.. on other hand when i shift that code into my bigger program where i have used structers …  |
 | Menu.RC [CODE]POPUP "File" } MENUITEM "New", CM_NEW MENUITEM SEPERATOR MENUITEM "Save", CM_SAVE MENUITEM "Save As", CM_SAVEAS MENUITEM SEPERATOR MENUITEM "Exit", CM_EXIT { }[/CODE] I have another file with the definitions to CM_NEW, Etc. |
| | Hello everyone!!! I just want to ask if is it possible to create a chat program that send and receive message, audio and video for Local Area Network... I want to create a program similar to yahoo messenger that includes the future of voice and video but the difference is … |
| | hi i have an icon with atransparent background that i want to assign to an MFC dialog based application but the problem is that this icon appears to have a white background .... how to make it transparent ...... pleeease help |
| | I have a template function as follows: template <typename T> int my_func(T& arg) T is expected to be of type map<T1, T2>. T1 is expected to be of a basic type (int, long, etc.) and T2 is expected to be of type vector<T1>/list<T1>/etc. I want to iterate over the contents … |
| | The following code is a minimal example of what I am trying to do. When I compiled it with Visual C++ 2008 Express, I got the error: main.cpp(62) : error C2677: binary '*' : no global operator found which takes type 'Point<T>' (or there is no acceptable conversion) 1> with … |
| | I'm using Microsoft Visual C++ 2008. How would i play a sound file? Either .wav, .mp3, or .midi hopefully.  |
| | Hi there: I defined several variables and assigned them values (nonzero) on a form. But I always got zero values of them when I cite them from another form. I am using BCB and never met this problem before even when I was doing the similar things. Can somebody give … |
| | pleeeeeease can i get the full file path from specified file name (.exe) an arbitrary file (.exe) |
 | I need to find the number of elements in an array passed into a function. The problem is in this case, sizeof() returns the size of the pointer itself. It only does this when passed through to a function. So here is that function: [CODE=c++] bool matchWord(TWORD *wordList, TWORD *word, … |
| | I want to make a bot for Counter-Strike called Counter-Bot. Does anyone want to help? A disassembler would be good, too. |
| | Hello all. I am new to the board and hope to build great relationships with other forum members. I am working on a program for class that is supposed to show the GCD. I used a text editor to make it, but when i put it in Visual express 2008, … |
 | hello all i dont know what is the problem ....... a very simple change in the order of functions make the program goes in infinite loop this code works will [CODE=cpp]#include <iostream> using namespace std; int main() { int i; while(true) { cout << "\nEnter Intger:"; cin >> i; if … |
| | Objective The objective of this assignment is to provide hands on experience of using Classes and Objects Dynamic Memory Allocation in C/C++ Friend Functions Program Write a C++ program that contains a class named Student having following data members: 1. stdId 2. stdName 3. stdAge 4. stdProgram 5. noOfSubjects. The …  |
| | When I try to compile g++-4.2 memJpegDecoder.cpp I get these errors. [code] /usr/lib/gcc/x86_64-linux-gnu/4.2.1/../../../../lib/crt1.o: In function `_start': (.text+0x20): undefined reference to `main' /tmp/cci2IOXX.o: In function `memJpegDecoder::decompress()': memJpegDecoder.cpp:(.text+0x5b5): undefined reference to `jpeg_calc_output_dimensions' memJpegDecoder.cpp:(.text+0x68a): undefined reference to `jpeg_start_decompress' memJpegDecoder.cpp:(.text+0x6ac): undefined reference to `jpeg_read_scanlines' memJpegDecoder.cpp:(.text+0x730): undefined reference to `jpeg_finish_decompress' memJpegDecoder.cpp:(.text+0x739): undefined reference to `jpeg_destroy_decompress' … |
| | If I declare a struct node, is the following legal in C++? [icode]node nodes_array[vector.size()];[/icode] I know this is not legal in C. However, my C++ compiler does not complain. Is this only in recent versions of C++, or has this always been legal in C++? |
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