C++ - Страница 1254

I just started learning Windows Programming. I had a question that, what is the difference between using C vs C++ to make programs. What are the functionalities I can get in one and not the other, and what is a good resource to learn about the...

I am facing issues with Visual Studio Code auto-completion not properly working after latest update (February 2024). I am using MacOS (M1) Monteray

To fully illustrate the problem, acqually I was having this problem since the first time I used VS...

The code below is the module that is supposed to check if another game should be played. However, even when typing yes or no, it still detects newGame as false, thus causing the while loop to iterate indefinitely regardless of input. What is the...

Is there any optimal solution (better than O(n^2) to count sub-arrays have non-negative sum?

I've try by using prefix sum and set to count the number of the subarray but it meets TLE because time complexity of distance function is linear:...

I've broken my arm and am developing a one-handed keyboard application for Windows that mirrors the keyboard layout when the space bar is held down, allowing for one-handed typing. The mirroring function is operational using a timer, but this is not...

I am working with a C++ dynamic link library from xatlas that exports a function with the following signature: __declspec(dllexport) void xatlasSetPrint(xatlasPrintFunc print, bool verbose);. The xatlasPrintFunc is defined as typedef int...

I'm a C++ beginner and was trying to write a program that wrote variable amount of values to a file, before summing them and displaying the total. However, instead of summing the values, my program acts like they are a string and appends them...

I wrote this code in C++ with inline assembly _asm for square matrix multiplication.

#include using namespace std; int main() {     int n = 2;     int A = { {1, 2}, {3, 4} };     int B = { {5, 6}, {7, 8} };     int C = { {0, 0}, {0, 0} };     _asm...

I can send and receive data on different threads using the TCP protocol as demonstrated in the following code, how can I do the same using the UDP protocol?

#include #include #include using namespace std; // Function that receive data from client...

I try to run a code which has a random number generation algorythm as a part of it. However, it doesn't work and compiler warns: expected a ; where :: for input and output operands in inline assembler shall be. For similar function dealing not with...

Out of curiosity I executed that simple code:

#include int main() { const int cValue{32}; const int* pcValue = &cValue; int* pValue = const_cast(pcValue); *pValue = 16; assert(&cValue == pcValue); assert(&cValue == pValue); assert(*pcValue == 16);...

I'm working on a personal project, involving an ESP32-S2, OLED (SH1106) and generic button encoder. Right now I'm at a stage where I want to put together a simple menu system that's just 3 levels deep.

Main Menu Sub Menu 1 Preset1 Preset2 Preset3...

This is a part of my code, that tries to use OpenCV and MFC in Visual Studio 2022.

void CLicensePlateRecognitionDlg::OnBnClickedBtnLoadImage() { CString file_name = _T( D:/Image Processing/Test/1.jpg ); Mat src = imread( D:/Image...

I am currently working on a project involving property handlers, specifically targeting .txt files. As a newcomer to this field, I have encountered an issue that I'm struggling to resolve and would greatly appreciate your guidance.

My objective is...

I tried to imports ALGLIB to my QT creator C++ project which is probably big.

The .exe compiles fine both in release and debug mode and if I go to the debug and release directory these .exe run perfectly fine. I can also run the program in release...

I have two snippet of codes

for (int i = 0; i 0 && arr 0 && arr

Источник:

I am using OpenCV and camera Basler in my Qt widget project. This is first time I use basler canera.

after I finished install and add library in file .pro. I #include , when run the Qt send me error:C2872: 'ACCESS_MASK': ambiguous symbol,

This...

You are the coach of a basketball team with a maximum total player capacity of K. You have a list of player types of size N, where each player of one type contributes a certain number of points to the team's overall points, and the number of players...

Platform: Windows 10, Visual Studio VC142

I'm using Boost 1.80.0 in my project. I've built Boost and been using modules such as Container without issue , however I tried to use Boost.Serialization and I get a link error:

LINK : fatal error...

Let's say you have a table

Customer | Product Dave | Sneakers Martin | Tooth Brush Andrew | Shirt Dave | Tooth Brush In SQL, you can do

SELECT Customer, Product, DENSE_RANK() OVER (ORDER BY Customer) AS customer_id, DENSE_RANK() OVER (ORDER BY...

I wrote the following code that has two lambdas. One of them explicitly captures i while the other doesn't. Note i is constexpr so we don't need to capture it explicitly.

My question is why func(lambda2) doesn't compile while func(lambda) does?...

Please help me!

This is a part of my code, I try to use opencv and mfc in Visual Studio 2022.

void CLicensePlateRecognitionDlg::OnBnClickedBtnLoadImage() { CString file_name = _T( D:/Image Processing/Test/1.jpg ); Mat src = imread( D:/Image...

If we have a type T that is not copy-constructible but copy-assignable:

struct T { T() = default; ~T() = default; T(const T&) = delete; T(T&&) = default; T& operator=(const T&) = default; T& operator=(T&&) = default; }; then...

I have used the glfwgetwindowpos and glfwsetwindowpos with imgui's getmousedragdelta to try and move the parent glfw window using imgui. What I am trying to accomplish is to have an imgui window where I am able to drag on it, but rather than moving...

I'm having some troubles cross compiling Qt6 on Ubuntu 22.04 using mingw64 and CMake. The compilation process starts fine and all source files get compiled, but when I start looking for Qt components using

find_package(Qt6 REQUIRED COMPONENTS Core...