Tag: WebDev

I've recently been backporting some Qt software to build against Qt 5.9, which (among other things) meant finding a solution for the fact that Q_DISABLE_MOVE(class) and the combined anti-copy+move macro were introduced in Qt 5.13 only. I understand the benefits of these mechanisms in helping prevent coding errors, but those are largely moot when you're backporting by adding #ifdef/#else constructions to support earlier versions of, in this case, Qt. The project in question has a lot of headerfiles that use QDISABLE_COPY_MOVE so the easiest and quickest way to get them to compile is via a conditional compiler argument: -DQ_DISABLE_COPY_MOVE=Q_DISABLE_COPY . With that, the code builds and runs. My question is if there are other benefits to disabling the move ctor and related operators, in terms of performance, memory usage or binary file size? The missing macros are easy and small enough to add, it just requires

I'm building a carousel for testimonials fetching records from a mysql database with php and showing them in a bootstrap carousel. The bootstrap carousel requires that the first record (testimonial) is set as 'active' <div class="carousel-item active"> Here is the code I am using to get the records from the database. <?php include_once("site/config/config.php"); include_once("site/config/functions.php"); $connection = mysqli_connect($host,$usr,$pwd,$db); //Output any connection error if ($connection->connect_error) { die('Error : ('. $connection->connect_errno .') '. $connection->connect_error); } //MySqli Select Query $results = $connection->query("SELECT id, sender_name, submission_date,comments,source FROM testimonials WHERE is_live='checked' order by RAND() DESC LIMIT 8"); if($results->num_rows > 0) { while($row = $results->fetch_assoc()) { $sender_na

In this code I'm facing a challenge of error: expected unqualified -id before "if" error: expected unqualified-id before else //Lab_01: Task_01: iCircle: #include<iostream> #include<math.h> using namespace std; int main(){ cout<<"\t\tC++ program to calculate the area of a circle"; //Define the variables float R, Area, Circumference; cout<<"Please enter the radius of the circle"; cin>>R; } //if condition applied if(R>0){ Area = 3.14*R*R; //Area of the circle. Circumference = 2*3.14*R; //Circumference of the circle. cout<<"Area of the circle"<<Area<<endl; //Print the area of the circle. cout<<"Perimeter of the circle"<<Perimeter<<endl; //Print the perimeter of the circle. } else{ cout<<"negative numbers cannot be applied"<<endl; system("pause");

I have a custom PlayerComponent based ExoPlayer. It makes the whole application not responsive when it is playing. I thought that the issue is about too frequent position state updates, but when I made update period longer (1 sec) pretty much nothing changed. I guess the issue might be due to too many events handled in pointerInput lambda. Also I was suggested to substitute Canvas with a Slider, but that doesn't suite my case because I nee to draw more complex timebar in the future. Can you help me out? What has the most sugnificant impact on performance? @Composable internal fun PlayerControls( modifier: Modifier = Modifier, isPlaying: Boolean, position: Long, duration: Long, onPlay: () -> Unit, onPause: () -> Unit, onSeek: (Long) -> Unit, onSeekBack: () -> Unit, onSeekForward: () -> Unit, isFull

I just cannot get this corerct: I have a class with @SpringBootApplication(scanBasePackages = "hu.xyz.spring") @Command(group = "DeToX base commands") @ShellComponent Typical code to start: SpringApplication application = new SpringApplication(any); context = application.run(args); Later private static void addPackage(String pkg) { ConfigurableApplicationContext cac = (ConfigurableApplicationContext) Main.ctx(); BeanDefinitionRegistry registry = (BeanDefinitionRegistry) cac.getBeanFactory(); ClassPathBeanDefinitionScanner scanner = new ClassPathBeanDefinitionScanner(registry); scanner.scan(pkg); } In the pkg there is a bean called "xy" and that needs beans that are defined in the same package in a @Configuration If I add the scanBasePackages to include the pkg, then it all works The

I'm trying to understand Combine's subscription lifecycle and why PassthroughSubject drops values when they are sent synchronously inside handleEvents(receiveSubscription:). import Combine import XCTest class CombineSubscriptionTest: XCTestCase { var cancellable: AnyCancellable? func testSendingInReceiveSubscription() { let value = 1 let subject = PassthroughSubject<Int, Never>() let handler = subject.handleEvents(receiveSubscription: { _ in // Send value synchronously subject.send(value) subject.send(completion: .finished) }) let expectation = expectation(description: "test") var collectedValues = [Int]() cancellable = handler .sink { completion in expectation.fulfill() } receiveValue: { value in collectedValues.append(value)

I'm generating a CSV file with Azerbaijani text using Java and UTF-8 encoding with BOM. The file opens correctly in WPS Office, but when opened in MS Excel, Azerbaijani characters appear as garbled symbols. Expected text: Riskli vergi ödəyicilərinin axtarışı What appears in Excel: Riskli vergi ödÉ™yicilÉ™rinin axtarışı My Code: public void writeCsvForInformationalServiceDetailed( List<InformationalServiceDetailedExcelItem> items, LocalDateTime periodStart, LocalDateTime periodEnd, HttpServletResponse response) { response.setContentType("text/csv; charset=UTF-8"); response.setHeader( "Content-Disposition", "attachment; filename=informational_service_detailed.csv" ); try (ServletOutputStream out = respons

When I try to play audio from a YouTube URL it doesn't play anything and outputs: [2026-02-06 22:11:21,663] {player.py:233} INFO - ffmpeg process 7252 successfully terminated with return code of 3436169992. into the server console. What is wrong with it? @commands.command() async def play(self, ctx, *, arg): FFMPEG_OPTIONS = { "before_options": "-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5 -probesize 200M", "options": "-vn", } ydl_opts = { 'format': 'bestaudio/best', 'outtmpl': '%(extractor)s-%(id)s-%(title)s.%(ext)s', 'quiet': True, 'postprocessors': [{ 'key': 'FFmpegExtractAudio', 'preferredcodec': 'mp3', 'preferredquality': '192', }], } # Searches for the video with yt_dlp.YoutubeDL(ydl_opts) as ydl: try:

I failed trying to get to work a very simple Lua script inside a testy2closed.nse (Nmap Script Engine). Tried on Mac and Linux, neither worked. Nor adding the script to the nmap scripts path (although running it from local folder there was no complain). The script looks to be parsed and executed by nmap with no errors, but the expected string/s for the test don't appear. The script should get internally the real state of a TCP port (open/closed [port number passed also as an argument for nmap]) and then show a string saying "This port is closed!" (if it is the case). Quite redundant, but is for a test. The script code (testy2closed.nse): -- HEAD -- description = [[ This is a simple script example that determines if a port is closed. ]] author = “Peter” -- RULE -- portrule = function(host, port) return port.protocol == &qu

I'm looking for a way to reliably find an album given the artist name and album title using ytmusicapi. Per the documentation, I use a query string as '"<ARTIST_NAME>" "<ALBUM_TITLE>"' and this returns the correct value most of the time but there are cases where it returns items that don't match the query at all even though the same search finds it when executed from directly from the YT web page, e.g. a search for '"Adria Duch" "You Make Me Feel"' returns titles like 'The Phantom Of The Opera' by a completely different artist, regardless of the 'ignore_spelling' switch. I am using the following code for my search: yt = YTMusic() search_key = '"' + artist + '" "' + title + '"' search_results = yt.search(search_key, filter="albums", ignore_spelling=False) Any tips on how to get this to consistently return the album item would be much appreciated. TIA,