49,766 Topics
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| | hi i want some good question c/c++ for practice can anyone suggest me some website or any good book |
| | Hi all, I want to make a string like this: [QUOTE]SELECT * FROM "Alexander de Groot"[/QUOTE]. So i can later execute that sql statment. Im only having a problem creating the string. Let me show you: [CODE]string sTableName; char *SqlTableName; sTableName = DBLookupComboBox1->Text.c_str(); SqlTableName = new char[sTableName.size()+ 20]; strcpy(SqlTableName,"SELECT * … |
 | How, in C++, can i convert a video from 1 format to another? Currently the only way i know how is by using an external exe called FFmpeg and using the function [code=c++]system("ffmpeg -i file.avi file.mp4");[/code]  |
| | hello to all, i am learning c++ and while looking at some code, i came upon this: *(float*) and *(DWORD*). for example [ICODE]#define adress_1 0x00AA8B20 *(float*) adress_1 = 5000000; [/ICODE] so can you explain what the *(float*) and *(DWORD*) do. and i did try and search on google but didnt … |
| | hi please help me.i wrote a program for student now i want rewrite with classes but i dont know how. :( my program: [code] #include<iostream.h> #include<string.h> struct student { char fname[30]; char lname[30]; long ID; float avg; };typedef struct student t1; void getinfo(t1 s[],int n) { int i; for(i=0;i<n;i++) { … |
| | Hi, I am new to this website (and C++) so pls forgive any newb errors / convention mistakes. I have a project that contains both a normal source file (PB.cpp), associated header (PB.h) and a windows form (GUI.h). I'm trying to pass a variable from the form to a function … |
| | Hi, I want to perform find and replace (like the one in MS word) on a group of files. Can somebody guide me on how to do that using regular expressions?is there any tool available to automate such task for any number of files? Thanks in advance. |
| | I am going some exercises and just want to make sure I am doing it right. It says for the following...Assume StackType is sent to int and STACK_CAPACITY is set to 5. Give the values of myTop and the contents of the array referred to by myArray in the stack … |
| | I'm trying to create a menu using ncurses, I found some useful code and help online, but the code has errors in it. And I can't figure out why I'm generating this error. On top of all this, theres no way I'll be able to use the information I've found … |
| | I'm almost done making a 2D game (and yes I'm sorta a newb) and I still haven't figured out how to delete an entity. Instead, as a place holder, I set the texture path to "" and all the variables to 0. I am using a class and here is … |
| | hi all, I'm trying to make a C++ application that visualizes the computer structure (drivers, folders and subfolders, ...) in a 3D tree. I want to access my hard disk to get its structure and use it. How can I do so?? Is there a look-up table or something that … |
| | I've been doing research on how processes communicate for the past like 4 months and I still can not answer this very simple question, how do most present day applications communicate within their own framework? Which tends to get me asking another question, do application programmers still program using C++? … |
| | This is as much of a question about algorithm as it is about code. I’m training monkeys to input data into a keyboard in the form of a table. I have created a special keyboard with nothing on it but numbers 0 - 9, a period, tab key and a … |
| | Hi everyone, How do I make sure that user input is of integer data type. not char nor alphanumeric..? when the user inputs character string or alphanumerics it should output "Please enter an integer" Is there sopme wayh to do this? Thanks. |
| | Consider all the sequences with length (0 < N < 44), containing only the elements 0 and 1, and no two ones are adjacent (110 is not a valid sequence of length 3, 0101 is a valid sequence of length 4). Write a program which finds the sequence, which is … |
| | Hi guys, Well, I am currently taking a C++ course focusing on learning about object-oriented design concepts, including polymorphism. The assignment I am currently working on involves the creation of a point-of-sale system. The details of the problem are quite involved and challenging (for me, at least!). I am determined … |
| | I've been trying to use member functions from a class (prototypes define in counter.h) in my main file. The class implementation is in file counter.cpp and i am trying to compile countertest.cpp. The error message is : g++ countertest.cpp Undefined symbols: "counter::counter()", referenced from: _main in ccmTnGJX.o _main in ccmTnGJX.o …  |
| | I know that the .txt file is being opened correctly, however, I don't know why the getline function is not storing the first line and outputting it correctly. [CODE]//Joseph Yong //CSC2430 //Homework 7 //Main File #include <iostream> #include <fstream> #include <string> #include <iomanip> #include "Customer.h" using namespace std; Customer cust; … |
| | Hi, I have code as follows wherein I pass a 2D array to a function and want to receive this array with its contents tripled. [CODE]#include <iostream> #include <cstdio> using namespace std; int** test2 (int arr2[][4],int mul){ for (int i=0;i<2;i++){ for(int j=0;j<4;j++){ arr2[i][j]=arr2[i][j]*mul; } } return arr2;//sending back the address … |
| | I'm trying to teach myself classes. I decided to create a class to represent a date. It's more for me to learn than to actually be useful. When I have the variables month, day, and year under private setting, the program will not compile (I am using Dev C++). When … |
| | Hi guys, I'm having a few problems with my code. I run the program and input 10 users for my account system, but when I try to recall the values for any account, I can only call the first balance I entered. I've been looking at the code, trying to … |
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| | The queue class needs to inherit protectedly from the list class My code won't compile because of this line towards the bottom listPtr = &myqueue; if i comment out this line, it compiles and runs, but without this line i can't do what i want. I need this line to … |
| | My Question: I have created a text file named it kashif.txt and i have placed this file in the same folder where .exe and .ccp of this program is placed but file is not opening. My code is as under. #include <fstream.h> #include<iostream.h> main() { char name[100]; char sal[100]; char … |
| | I need a Huffman code can run.Thank You a lot I need a Huffman code can run. I was looking on google but my English is limited and can not find exactly. |
| | hi this is a program to perform insertions and deletion in doubly link list... |
| | i am currently new to c++ coding and i have been working on this code for a class, i am suppose to get emails from a .txt file and the program reads each line of the file analyzing each and every char of every line to see if it is … |
| | Mucking about (should say practising what I've learn't), and made my version of the rabbits practice program. It's not totally finished but it's my first draft and it's working. Before continueing, I'd like a code review please to tell me whats not correctly done or how I could improve my … |
| | I have my class in 2 different files(header and source-file) and i have 2 variables which is a const but the only way to give the const variable a value is to do it trough an constructor initializer. But how do i implement an constructor initializer in my class ? … |
| | hi i want to give my sprites some weapons- one a gun and the other a sword but i have no idea what i am doing, can anyone help me do this please? i've included my main.cpp, player.cpp and player.h if it helps.. im using visual c++ and SDL and … |
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