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bool is a datatype defined in C99. Boolean values are used in conditionals, such as if or while statements, to conditionally perform logic or repeat execution. When evaluating a conditional statement, the value 0 is considered “false”, while any other value is considered “true”. Because NULL ...

Usually when generating random numbers it is useful to generate integers within a range, or a p value between 0.0 and 1.0. Whilst modulus operation can be used to reduce the seed to a low integer this uses the low bits, which often go through a short cycle, resulting in a slight skewing of distribut...

// Let's take an arbitrary piece of data, a 4-byte integer in this case let some_data: u32 = 14; // Create a constant raw pointer pointing to the data above let data_ptr: *const u32 = &some_data as *const u32; // Note: creating a raw pointer is totally safe but dereferencing a raw pointe...

// Let's take a mutable piece of data, a 4-byte integer in this case let mut some_data: u32 = 14; // Create a mutable raw pointer pointing to the data above let data_ptr: *mut u32 = &mut some_data as *mut u32; // Note: creating a raw pointer is totally safe but dereferencing a raw pointe...

Unlike normal Rust references, raw pointers are allowed to take null values. use std::ptr; // Create a const NULL pointer let null_ptr: *const u16 = ptr::null(); // Create a mutable NULL pointer let mut_null_ptr: *mut u16 = ptr::null_mut();

Just like in C, Rust raw pointers can point to other raw pointers (which in turn may point to further raw pointers). // Take a regular string slice let planet: &str = "Earth"; // Create a constant pointer pointing to our string slice let planet_ptr: *const &str = &planet ...

Rust has a default formatter for pointer types that can be used for displaying pointers. use std::ptr; // Create some data, a raw pointer pointing to it and a null pointer let data: u32 = 42; let raw_ptr = &data as *const u32; let null_ptr = ptr::null() as *const u32; // the {:p} mappi...

Overloading the addition operator (+) requires implement the std::ops::Add trait. From the documentation, the full definition of the trait is: pub trait Add<RHS = Self> { type Output; fn add(self, rhs: RHS) -> Self::Output; } How does it work? the trait is implemented for...

It's possible to navigate the browser directly, like using the standard toolbar commands available on all browsers: You can create a navigation object by calling Navigate() on the driver: IWebDriver driver INavigation navigation = driver.Navigate(); A navigation object allows you to perform ...

Objective-C UIGraphicsBeginImageContext(self.view.frame.size); [[UIImage imageNamed:@"image.png"] drawInRect:self.view.bounds]; UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); self.view.backgroundColor = [UIColor colorWithPatternIma...

HanlderManager providing: public class HandlerManagerProvider { private static HandlerManager handlerManager; private HandlerManagerProvider() { } public static HandlerManager get() { return handlerManager != null ? handlerManager : (handlerManager =...

Processing provides a method named line() to draw a line on the screen. This code draws a white 10 pixel line on black background. void setup() { size(500, 500); background(0); stroke(255); strokeWeight(10); } void draw() { line(0, 0, 500, 500); } The signature of m...

Detailed instructions on getting doxygen set up or installed.

Detailed instructions on getting pagination set up or installed.

Heap sort is a comparison based sorting technique on binary heap data structure. It is similar to selection sort in which we first find the maximum element and put it at the end of the data structure. Then repeat the same process for the remaining items. Pseudo code for Heap Sort: function heapsor...

Presumably the simplest way to use compose is with a View only. This allows you to include HTML templates without the need to declare a ViewModel with bindable properties for each of them, making it easier to reuse smaller pieces of HTML. The BindingContext (ViewModel) of the View will be set to th...

Using compose with a View, ViewModel and Model is an easy way to reuse and combine different Views and ViewModels. Given the following View and ViewModel (applies to each alternative below): src/greeter.html <template> <h1>Hello, ${name}!</h1> </template> src/gree...

Note: at is not installed by default on most of modern distributions. To execute a job once at some other time than now, in this example 5pm, you can use echo "somecommand &" | at 5pm If you want to catch the output, you can do that in the usual way: echo "somecommand > o...

public class InsertionSort { public static void SortInsertion(int[] input, int n) { for (int i = 0; i < n; i++) { int x = input[i]; int j = i - 1; while (j >= 0 && input[j] > x) { input...

The following documentation describes both MySQLi and PDO supported pagination solution. Go to https://github.com/rajdeeppaul/Pagination and download pagination.php file into your project directory. Let's say your directory structure looks like this: project directory | |--paginati...