Category "c++"

How to get characters from a file and display on console?

I got this code from notes about file handling. From what I understand about this code, I want to get characters till x is reached in the file using this code.

Issue with the return type of the `get_mpz_t` function of GNU MP

The GNU MP manual specifies the declaration of the function get_mpz_t: Function: mpz_t mpz_class::get_mpz_t () So I was expecting a mpz_t return type. But runn

How to properly use glTexImage2D to render an object each frame?

This is the code for a ground object that gets rendered every frame in a game I'm making with c++ and openGl. Ground::Ground() { this->loadedObject = loa

select a screen section ffmpeg c++ on macos

I am trying to record the screen on macos, with ffmpeg. I would like to be able to select a section of the screen instead of the whole desktop. I tried to set s

How to interpret the explicit cast operator

As we can invoke the explicit cast operator, using static_cast, a C-style cast, or a constructor style cast. I am confusing how exactly the operator interpret t

MCUxpresso imr rt - Position Independent Code result in mem fault on free rtos task activation

I have a dev board (imx rt 1024) from nxp, which I write software for using MCUxpresso (nxp's IDE). For my project, I am asked to introduce position independent

Why is C++ getline() non-blocking when program is called from python subprocess?

I have a C++ program that waits for some text input with getline(), and it works well from the command line. However, I would like to call it from Python - send

Datetime parse and format in C++

I'm using time_point the first time. I want to parse datetime from string and found a difference when returning back to string from 1 hour. std::chrono::system_

How do I avoid printing the first node in my linked list?

I'm trying to create a linked list that has 2 data types and a function that inserts nodes. But in order to insert nodes, I have to create at least 1 empty node

strange error in main and incorrect reading of a vector [closed]

hi I was writing a code where near the vectors it returns true if they are placed in ascending order otherwise false, when I try to start the

DocuSign JSON SOAP Request

I am trying to understand how to send SOAP requests with JSON formatted data to docusign. Following this guide is only for pdfs: https://developers.docusign.com

I made my own strcpy function, but it is not working. How to fix it?

I attempted to make my own mystrcpy() function, which takes the same arguments as the standard function. It is not responding. The array does not get copied. si

Is a constructor a function and is it possible to call a constructor

I came across this where one of the user comment says: A constructor cannot be called, it is not a function. It is invoked automatically when a new object is c

How to convert YOLOv5 PyTorch model to OpenCV DNN compatible format

Could anybody please help me to convert YOLOv5 PyTorch model to ONNX or TensorFlow format to be able to use it with OpenCV C++ inference? I used this tutorial t

Compilation Failing for xalan-c in Ubuntu

I am trying to build xalan-c (version 1.12) with icu in Ubuntu but it fails. Could anyone help me with this. Environment : Ubuntu 20.04 Steps to reproduce : Cl

I just can't get it. What is wrong in this?

Please see the error and help me. Its showing error. I just can't understand where is the problem?? I have resolved all the errors that could be solved but stil

Double stack linked list segmentation fault

So I've been asked to make a C++ program Double stack with linked list. I can't find any tutorial or example on Google, most of them use Array to do it. so I ha

Initialize array based on C++ version and compiler

In C++11 or higher regardless of compiler int myArray[10] = { 0 }; would initialize to all elements to zero. The question is would this also work in C++98 and c

Auto-filling the HTML input field with a C++ QString value

I am finding the 'Sign in' text on the QWebEnginePage and then auto filling in the emailId in the input field if the correct page is displayed. The value of ema

Optional node still visited in OR-tools vehicle routing problem

In a simple vehicle routing problem solved by Google OR-tools library, two nodes (2, 3) are marked as optional with visiting penalty set to 0. The shortest path