Structures in Rust are defined using the struct keyword. The most common form of structure consists of a set of named fields:
struct Foo {
my_bool: bool,
my_num: isize,
my_string: String,
}
The above declares a struct with three fields: my_bool, my_num, and my_string, of the type...
To declare methods on a struct (i.e., functions that can be called "on" the struct, or values of that struct type), create an impl block:
impl Foo {
fn fiddle(&self) {
// "self" refers to the value this method is being called on
println!("fiddling...
Structures can be made generic over one or more type parameters. These types are given enclosed in <> when referring to the type:
struct Gen<T> {
x: T,
z: isize,
}
// ...
let _: Gen<bool> = Gen{x: true, z: 1};
let _: Gen<isize> = Gen{x: 42, z: 2};
let _: Gen...
async and await are two operators that are intended to improve performance by freeing up Threads and waiting for operations to complete before moving forward.
Here's an example of getting a string before returning it's length:
//This method is async because:
//1. It has async and Task or Task<...
C.I.A.s are intended as a simple way of getting attributes from whatever is calling the targeted method. There is really only 1 way to use them and there are only 3 attributes.
Example:
//This is the "calling method": the method that is calling the target method
public void doProcess()
...
using System.ComponentModel.DataAnnotations;
public class Post
{
public int Id { get; set; }
[StringLength(100)]
public string Title { get; set;}
[StringLength(300)]
public string Abstract { get; set; }
public string Description { get; set; }
}
Def...
Example showing how to create Guis using functions instead of labels.
Gui, Add, Button, gCtrlEvent vButton1, Button 1
Gui, Add, Button, gCtrlEvent vButton2, Button 2
Gui, Add, Button, gGoButton, Go Button
Gui, Add, Edit, vEditField, Example text
Gui, Show,, Functions instead of labels
CtrlEv...
You cam amend the time of a commit using
git commit --amend --date="Thu Jul 28 11:30 2016 -0400"
or even
git commit --amend --date="now"
If you make a commit as the wrong author, you can change it, and then amend
git config user.name "Full Name"
git config user.email "[email protected]"
git commit --amend --reset-author
[TimeStamp] attribute can be applied to only one byte array property in a given Entity class. Entity Framework will create a non-nullable timestamp column in the database table for that property. Entity Framework will automatically use this TimeStamp column in concurrency check.
using System.Compon...
Function scope is the special scope for labels. This is due to their unusual property. A label is visible through the entire function it is defined and one can jump (using instruction gotolabel) to it from any point in the same function. While not useful, the following example illustrate the point:
...
Android Studio's Live templates can offer quite a few shortcuts for quick logging.
To use Live templates, all you need to do is to start typing the template name, and hit TAB or enter to insert the statement.
Examples:
logi → turns into → android.util.Log.i(TAG, "$METHOD_NAME$: $content$&q...
Caffe can run on multiple cores. One way is to enable multithreading with Caffe to use OpenBLAS instead of the default ATLAS. To do so, you can follow these three steps:
sudo apt-get install -y libopenblas-dev
Before compiling Caffe, edit Makefile.config, replace BLAS := atlas by BLAS := open
A...
What's between \Q and \E is treated as normal characters
#!/usr/bin/perl
my $str = "hello.it's.me";
my @test = (
"hello.it's.me",
"hello/it's!me",
);
sub ismatched($) { $_[0] ? "MATCHED!" : "DID NOT MATCH!" }
my @match = (
...
It is sometimes required for a process to concurrently write and read the same "data".
The ReadWriteLock interface, and its ReentrantReadWriteLock implementation allows for an access pattern that can be described as follow :
There can be any number of concurrent readers of the data. If...
using System;
using System.Runtime.InteropServices;
namespace ComLibrary
{
[ComVisible(true)]
public interface IMainType
{
int GetInt();
void StartTime();
int StopTime();
}
[ComVisible(true)]
[ClassInterface(ClassInterfaceType.N...
It can be difficult to test functions with poor asymptotic complexity using quickcheck as the random inputs are not usually size bounded. By adding an upper bound on the size of the input we can still test these expensive functions.
import Data.List(permutations)
import Test.QuickCheck
longRunn...
