Tutorial by Examples: d

Suppose this struct is defined and compiled with a 32 bit compiler: struct test_32 { int a; // 4 byte short b; // 2 byte int c; // 4 byte } str_32; We might expect this struct to occupy only 10 bytes of memory, but by printing sizeof(str_32) we see it uses 12 by...

In Rust the xmpp-addr (docs) crate can be used to manipulate JIDs. To split a JID into its component parts (without validating that those parts are valid), the Jid::split function may be used: let (lp, dp, rp) = Jid::split("[email protected]")?; assert_eq!(lp, Some("feste")); ...

This example shows how to override ToString method in generated class // create an Assembly and new type var name = new AssemblyName("MethodOverriding"); var dynAsm = AppDomain.CurrentDomain.DefineDynamicAssembly(name, AssemblyBuilderAccess.RunAndSave); var dynModule = dynAsm.DefineDyn...

Following example will help to give equal space to an item in GridLayout. ItemOffsetDecoration.java public class ItemOffsetDecoration extends RecyclerView.ItemDecoration { private int mItemOffset; private int spanCount = 2; public ItemOffsetDecoration(int itemOffset) { ...

This example will help to have the Edit text with the icon at the right side. Note: In this just I am using setCompoundDrawablesWithIntrinsicBounds, So if you want to change the icon position you can achieve that using setCompoundDrawablesWithIntrinsicBounds in setIcon. public class MKEditTe...

This method will help to get the Java string from C++ string. jstring getJavaStringFromCPPString(JNIEnv *global_env, const char* cstring) { jstring nullString = global_env->NewStringUTF(NULL); if (!cstring) { return nullString; } jclass strC...

Here we can find some useful method using PackageManager, Below method will help to get the app name using package name private String getAppNameFromPackage(String packageName, Context context) { Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); mainIntent.addCategory(Intent.CATE...

Vim saves all your unsaved edits in a swap file, an extra file that gets deleted once the changes are committed by saving. The name of the swap file is usually the name of the file being edited preceded by a . and with a .swp suffix (you can see it with :sw). So in case your vim process terminates ...

Docs: 1.x -> 2.x upgrade guide, registering an element, shared style modules. <link rel="import" href="bower_components/polymer/polymer-element.html"> <dom-module id="element-name"> <template> <!-- Use one of these style declaration...

Docs: extending elements, inherited templates. Instead of Polymer.Element, a custom element can extend a different element: class ParentElement extends Polymer.Element { /* ... */ } class ChildElement extends ParentElement { /* ... */ } To change or add to the parent's template, over...

Using the POWERSHELL command, we can execute a 1-line command directly from a batch script, without any temporary file. Here's the syntax. powershell.exe -Command <yourPowershellCommandHere> You may also want to include other flags, like -Nologo to improve the actual outcome.

NSString *appDomain = [[NSBundle mainBundle] bundleIdentifier]; [[NSUserDefaults standardUserDefaults] removePersistentDomainForName:appDomain];

While adding the beamerposter package, provide the required parameters. \usepackage[orientation=landscape,size=a1]{beamerposter} You can also customize the size of the poster. \usepackage[orientation=portrait,size=custom,height=110,width=80,scale=1.4]{beamerposter} The height and width dimension...

Docs: mixins, hybrid elements. Defining a class expression mixin to share implementation between different elements: <script> MyMixin = function(superClass) { return class extends superClass { // Code that you want common to elements. // If you're going to override a...

Docs: lifecycle callbacks, ready. class MyElement extends Polymer.Element { constructor() { super(); /* ... */ } ready() { super.ready(); /* ... */ } connectedCallback() { super.connectedCallback(); /* ... */ } disconnectedCallback() { super.disconnectedCallback(); /* ... */ } attribut...

Docs: data binding, attribute binding, binding to array items, computed bindings. Don't forget: Polymer camel-cases properties, so if in JavaScript you use myProperty, in HTML you would use my-property. One way binding: when myProperty changes, theirProperty gets updated: <some-element t...

Listing services systemctl To list running services systemctl --failed To list failed services Managing Targets (Similar to Runlevels in SysV) systemctl get-default To find the default target for your system systemctl set-default <target-name> To set the default target for your syst...

\documentclass[12pt]{article} \usepackage{titleps} \usepackage{fancyhdr} \usepackage{graphicx} \usepackage{lipsum} % for dummy text \pagestyle{myheadings} \pagestyle{fancy} \fancyhf{} \setlength{\headheight}{30pt} \renewcommand{\headrulewidth}{4pt} \renewcommand{\footrulewidth}{2pt...

#include opencv2/opencv.hpp> #include vector> using namespace std; using namespace cv; int main() { Mat3b img = imread("test.jpg"); imshow("Original", img); // Cluster int K = 8; int n = img.rows * img.cols; Mat data = img.reshape(1, n); data.convertTo(data, CV_32F); ...

import tensorflow as tf # good idea tf.reset_default_graph() # DO MODEL STUFF # Pretrained weighting of 2.0 W = tf.get_variable('w', shape=[], initializer=tf.constant(2.0), dtype=tf.float32) # Model input x x = tf.placeholder(tf.float32, name='x') # Model output y = W*x y = tf.multiply(W,...