51,593 Topics
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| | Hi I having trouble to export DLL which would contain one fucntion. The function would create an MFC dialog object, then the object is instantiated and then run method is invoked. The user input from the dialog would be the return value to the function and also it would the …  |
| | Hi I am considering to use C++/CLI because of .NET. My aim is to create DLLs where these would be used by some language. Would I be getting any problems if I decided to export DLL containing managed code? Any portability issues? Thanks in advance |
 | Hi I am developing using C/C++ window application using winapi. I will be using some standard STL containers and some win api functions provided by windows.h. I would like use the app on different windows versions such as windows 7 and 10. The apps will be builded for x86 architecture. … |
 | The program needs to get loan amount, loan term, and loan interest rate from the user and then use those same numbers to create a function that calculates the monthly payment of the loan using monthlyPayment = principal * rate / ( 1.0 – pow(rate + 1, -term)); I've come … |
| | Hey everyone of the c++ world. I am a little stuck. Here is what i am suppose to be doing. Write the program as an object-oriented C++ program that calculates and displays the mortgage payment amount from user input of the amount of the mortgage, the term of the mortgage, … |
| | I'm trying to add insert functionality to a textbook code example. I have an "off by one" error and I can't think of a way to fix it. Here's my attempt below: template< class NODETYPE > void List< NODETYPE >::insertMiddle( const NODETYPE &value, int position ) { ListNode< NODETYPE > … |
| | I should go to this program mentioned below. make a double loop (do ... while) to suppress an incorrect daily calculation!note :::: work with a char variable "error" for erroneous daily calculation. In contrast to the origin program, deposit and payout data should be requested again for a result of …  |
| | So, I have created a text file containing the following: 10001 General Electronics 500 20001 fACEBOOK 700 10002 Twitter 400 The records are stored in a struct containing an integer id, string company and integer number of shares variables. I want the user to enter a Id, say 20001, and … |
| | I am updating a C++ program, part of which copies arrays of doubles by iterating through each array (copies elements of array wa2 into array X): for (j = 0; j < N; ++j) { X[j] = wa2[j]; } // End for j I would like to use the built-in …  |
 | the question seems simple, but isn't. think that i have the functions list and it's parameters and the variables on vectors(inclued it's types.. it's a structure). now see these string(yes i have the words\operators count): function1 ( function2 ( ) , function3 ( parameter1 ) , parameter3 ) the count, … |
| | i want to write code in data structure using c++. my topic is online voting system. |
 | Hello! I am interested in the issue of protecting the code from hacking. Do you protect your code from decompiling and hacking? Why did the question arise? I worked in a team that developed games for Android. They all used obfuscators! So almost no one could hack their application. Now … |
| | I am working on a equation balancer for my 12th class computer science project.But somehow i am not able to balance the chemical equation.Please if anyone can provide me the source code it will be a great help.Urgently needed! |
| | i create the read(...) function for read to variables. but i need too the read()(without arguments) for press enter before continue\exit. void read() { //wait if the enter key is pressed: cin.ignore(); cin.get(); } template<typename first_t, typename... rest_t> void read(first_t &first, rest_t... rest) { std::cin >> first; read(rest...); //function is … |
| | i'm trying using the GNU compiler with command lines( using the ShellExecuteEx()). when i do: string FileName1="C:\\Program Files\\mingw-w64\\x86_64-7.2.0-win32-seh-rt_v5-rev1\\mingw64\\bin\\x86_64-w64-mingw32-g++.exe"; run(FileName1,"-c \"C:\\Users\\Cambalinho\\Documents\\CB\\testfolder\\bin\\Debug\\test2.cpp\""); the object file is created. these line creates the exe: run(FileName1,"-o C:\\Users\\Cambalinho\\Documents\\CB\\testfolder\\bin\\Debug\\test2.exe C:\\Users\\Cambalinho\\Documents\\CB\\testfolder\\bin\\Debug\\test2.o"); (tested) but the exe have some dependencies... so seen the Code Blocks: x86_64-w64-mingw32-g++.exe -Wall -g -std=c++14 -c … |
 | Hi all, I'm having a little problem with array and some "unqualified-id" problem. I've created gazillions (okay, maybe 80) arrays before but I had never encountered such problem. Especially with static arrays. [CODE] #include <stdio.h> #include <cstdlib> using namespace std; int main() { // with addition of buffers for 3x3 … |
 | Create a text file (w/o using any C++ program) containing the names of students and their marks in the following format: **Ajay 350 Vijay 340** where name and marks are separated by either a space or a tab and end of line is a record separator. Write a program to … |
 | hi so i am studying programming and i want to extract from an inputted string values in the left right and middle. i have only begun learning a few months ago so i dont know anything about pointer how to i build a funtion to extract the mid left and … |
| | and im working on Archery, bow hunting, bow sling, paracord, backcountry gear, tree stand, my sling-a-ling ,jakt gear, total archery challenge, hunting accessories, bowhunting accessories, bowhunting gear, bow hunting, 3D archery, archery tournaments, hunting season, archery sling, archery accessories much more .Im new in this forum I need lots of …  |
 | hello. how can i print out in textbox a void * value ? here is the code: uintptr_t offsetFromBuffer = (uintptr_t)internalAddress - (uintptr_t)&buffer; void * healthDecAddress = (void*)(currentChunk + offsetFromBuffer); richTextBox1->Text = healthDecAddress; // how can i do it right ? |
| | Ok so I have been trying to do project euler problem 1 which finding the sum of all the multiples of 3 and 5 that are less than a thousand. i dont know why my program is not working. here's my program - [code=c++] #include <cstdlib> #include <iostream> using namespace …  |
| | Hello, friends. I did the fourth challenge on Project Euler and I'd like to know what I can do to improve the efficiency of my code. Right now it takes 1.562s to run and the source code is as follows: #include <iostream> #include <string.h> using namespace std; int Number = … |
| | What are general considerations when choosing an open source library |
 | #include <iostream> #include <cstdlib> #include <fstream> #include <ctime> using namespace std; void array(int arr[], int arrSize); void add(int arr[], int arrSize, int newElem); bool edit(int arr[], int arrSize, int index, int newVal); bool delEm(int arr[], int arrSize, int elem); bool search(int arr[], int arrSize, int elem); bool PunoNa(int arr[], int … |
| | heres my actual code for find\search a folder: string FindDirectory(std::string FindDirectoryName[2], std::string StartDirectory="C:") { WIN32_FIND_DATA file={0}; string str=StartDirectory+ "\\*"; HANDLE search_handle = FindFirstFile(str.c_str(), &file); static bool blnFindDirectoryName=false; static string strFolderName =""; //testing if the folder is valid: if (search_handle != INVALID_HANDLE_VALUE) { do { //if the folder was founded, then … |
 | Hi, I have a C++ program : // ConsoleApplication14.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> #include <list> #include <queue> #include <vector> #include <string> using namespace std; class RectangularVectors { public: static std::vector<std::vector<int>> ReturnRectangularIntVector(int size1, int size2) { std::vector<std::vector<int>> newVector(size1); for (int vector1 …  |
| | Hi I am trying to get windows positioned in specific order as show below  but I am unable to get and get always this  the code below is shown HDWP cmdWnds; cmdWnds = BeginDeferWindowPos(col.size()); for (int i = 0; i < col.size(); i++) { if (i == 0) … |
| | I know an AVL Tree guarantees a time of log(n), but what is the time cost of the actual re balancing of the tree and why is this ignored? |
| | I am a beginner in C++ coding. Now I am making a little text based game and i need to do a loading screen. I've kind of made one but i want to fill it with this shape ■. What i know is that the ascii code for it is … |
| | When I try to display the address of a char type variable, I don't get the normal hexidecimal address, but some strange symbols. I don't have the same problem with int or string, etc.. Example: char x='#'; cout << &x; The output of this is: #( ( What's the explanation? |
 | Pretty neat text-based RPG that I made. Currently my first game. |
| | I trying to write a code that reads a set of integers and then finds and prints the sum of the even and odd integers. The numbers will be read in from the user via the cin statement. You do not know how many numbers the user may enter. When … |
 | Hello, have the following program code: #include <stdio.h> #include <stdlib.h> #include <ctype.h> int main (void) { char c; while( (c = getchar()) != '\n') { putchar(c); } putchar ('\n'); return EXIT_SUCCESS; } At the moment he reads in entered characters and outputs them again. I should [write](https://prowritingservice.com/write-my-essay/) it so that …  |
| | write a C++ program to find the volume of a cube. The program should provide setting and gettng the values of cube( height, length and breadth). show how encapsulation and abstraction is implimented in your programme. you must use a class concept and the main function. |
 | I'm having a difficulty to write this program in c++ please help me First generate 100 random numbers in the range [11, 25] and store them in a file named “random.txt”. Write just one number in each row. Then open and read data from the file “random.txt”. Calculate the average … |
| | Hello, this is my first post. I need help with this assignment here, dont know where to begin! maybe I should use strstr()? The output needs to be what is shown at the bottom. I cant use the string class, only c-style functions. Any hints would be welcome thank you! … |
 | So I have a poker type program where it should shuffle and deal a deck of cards using arrays of pointers. I have to write a function that uses a pointer(s) to determine if the hand contains an Ace. If I can understand this one, I'd be able to do …  |
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| | Hi, I would like to ask a question about returning the column value(s) returned by stored procedure in c#. I have created the code but somehow I encountered an error saying: ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ An unhandled exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll Additional information: Subquery returned more than 1 value. This … |
| | I want to create a game that computer guesses the number that i think between 0-500 but i am a beginner and i do not know what to do could you help me please ? |
| | program buys internet packages with credit (pulsa) with do while loop . Dev c++ |
 | I have some problems when working with Win32 api. 1. Changing the text and background color of a button doesn't take effect. My code: case WM_CTLCOLORBTN: COLORREF colorref; colorref = RGB(0,0,255); HBRUSH hBrushBtn; hBrushBtn = CreateSolidBrush(colorref); return ((LRESULT)hBrushBtn); break; 2. How do I create selectable text. My code: text = … |
 | Algorithm 1) Choose the time quantum and assign it for each process. 2) Allocate the CPU to the process according to the FCFS scheduling. 3) If (burst time of the process < time quantum).{Allocate the CPU to that process till it terminates.}Else {The process will occupy the CPU till the … |
 | Hey, I don't know if this is the right place, but my issue is taking an output from a software SPI and using it in another function for temperature. The code below is marked with my issue, however it's not the full code. The full code is for a lab … |
| | I'm trying to setup mongoos server in a Winndows app. The server code needs to be in an infinite loop, so does the windows main loop. I put the server code and win loop on 2 threads, the problem is, the program hangs when executed. Is there a way to … |
| | Question: I have to do a program on alternating sums using vectors. I am not sure how to start this program. I thought about using an array and every even index add the value and every odd index subtract the value. Does that sound right? Any ideas?  |
 | I am using PySide2 for GUI. I have a "Rename Project" QAction. The function must be like this: 1. set enable to false if tab name is "*Untitled" or file is unsaved. 2. set enable to True if file is loaded. How to do this? 3. Whenever switching to tab, … |
| | How can I make this to continue until the user presses N? I've tried using while(1), while( option == 'y' || option == 'Y') but it kept giving an error for that, and if/else statements but no luck. So I decided to try a do while statement and same results, … |
 | Hi All, In this program I have these 2 matrices . It will compare each element in each row of matrix[4][4] to 3 . If that value <= 3 then store the characters in the first row of matrix m_c[25][32] in an 2D char array (char clusters[40][40]). For example 3 … |
 | //How to change cin and cout to printf and scanf??? #include <iostream> using namespace std; char square[10] = {'o','1','2','3','4','5','6','7','8','9'}; int checkwin(); void board(); int main() { int player = 1,i,choice; char mark; do { board(); player=(player%2)?1:2; cout << "Player " << player << ", enter a number: "; cin >> … |
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