Yes it seems that it is still disabled in the current version. A quick search on the Arduino forum got me this : Arduino Due and tone() I can’t test their code but it seems that the guy found a pretty decent solution to make his own tone(). Have a look and tell us if … Read more
It seems like the obvious structure would be something like this: while (current_time < end_time) { current_number = *next_number++; if (meets_conditions(current_number)) output(current_number); } solved Execution Control In C [closed]
First off, you haven’t set an explicit modifier on the class, so your are going to end up with whatever the default happens to be (if it’s in the namespace then internal or private if contained in a class). This can cause minor inconveniences at compile-time. A bigger issue might be if the default exposes … Read more
You cannot. Your code has an undefined behavior. If I modify the main() function to: int main() { Person *p = new Person(); Developer* d = dynamic_cast<Developer*>(p); assert(d!=0); d->Pi(); delete p; delete d; return 0; } Then the assertion d!=0 is triggered. That shows that the dynamic_cast failed. You call Developer::Pi on a null pointer, … Read more
Try this var OuterBrackets_List= lst.Where(s => s.StartsWith(“[“) && s.EndsWith(“]”); var AlphaNumeric_List = lst.Except(OuterBrackets_List); 1 solved how to extract those elements from the list which have square bracket in c# [closed]
Here’s the quick answer – it will probably take you longer than a week 🙂 The best thing to do is view your website in different browsers and see what the problems are. You have been a bit vague in your question, but you could be looking at having to fix UI issues and possbily … Read more
The complexity of the program is huge – it would take forever to run. It is possibly valid, but the number of iterations in for loops is just enormous. You are trying to run this loop: for (unsigned __int64 i = 300851475143; i > 2; i–) which alone is way too big for the program … Read more
Telepathic power: you are talking about size of file on disk and comparing original compressed file (likely JPG) with cropped version saved in non-compressed format (likely BMP). Fix: save cropped image in compressed format. Image.Save with 2 arguments lets you specify format (i.e. unlike one argument version you use in your sample). Example from the … Read more
I’m going to guess that your code is calling an API that has a 32-bit opcode as the first parameter, and the author of the API has chosen an opcode such that if he did a combined hex/ASCII dump of your array he would see the ASCII letters “SELF”. For an example of this approach … Read more
There is a framework class for that: HttpUtility.ParseQueryString 1 solved How can I split a url in C# into a Key Value pair? [duplicate]
I suggest that you read on how to ask a good question first Straight from Separation of concerns: design principle for separating a computer program into distinct sections, such that each section addresses a separate concern. I hope that you are not the developer taking over this project, because it seems like you have minimal … Read more
On your system, long is 32 bits. The largest positive integer it can hold is 4294967295. But 1836311903 + 2971215073 = 4807526976, which is larger, so it overflowed and you got 512559680 (which is 4807526976 – 4294967296). If you want to go past the 47th Fibonacci number, you’ll need a larger datatype or do multi-precision … Read more
First, there appears to be a typo in your question. Apparently your formula isn’t A^2-B^2=(A-B)+(A+B), as the beginning of your question suggests; the example shown is doing multiplication on the right-hand side of the equation. Here’s a very basic example of how to do this. int a = ReadInt(“Enter value for A: “); // see … Read more
You need to split it up into sections. First: Get positive number double i; double k; Console.Write(“What is your total income : “); while (!double.TryParse(Console.ReadLine(), out i) || i < 0) { if (i < 0) { Console.WriteLine(“Your income cannot be negative.”); } else { Console.WriteLine(“Enter your income as a whole-dollar numeric figure.”); } } … Read more
A watchdog is a mechanism that periodically tests whether a process or thread is running properly. If it’s not, it either restarts it or notifies an administrator, depending on the needs of the application. The details of how you implement this will depend on the application design. solved What is a watchdog? [closed]