Tutorial by Examples: b

Given the following custom Boolean type we want to wrap: typedef char MYBOOL; #define TRUE 1 #define FALSE 0 A simple approach might be to write the following typemaps in our SWIG interface: %typemap(in) MYBOOL %{ // $input is what we got passed from Python for this function argument $1...

bindings: { mandatory: '=' optional: '=?', foo: '=?bar' } Optional attributes should be marked with question mark: =? or =?bar. It is protection for ($compile:nonassign) exception.

In traditional object-oriented languages, x = x + 1 is a simple and legal expression. But in Functional Programming, it's illegal. Variables don't exist in Functional Programming. Stored values are still called variables only because of history. In fact, they are constants. Once x takes a value, it...

Open console: Ctrl+Shift+J (Windows/Linux) Cmd+Opt+J (Mac) Insert document.body.contentEditable = true or document.designMode = 'on' and press ENTER

If you do not only wish to display static objects, but have your UI respond to changes to correlating objects, you need to understand the basics of the INotifyPropertyChanged interface. Assuming we have our MainWindowdefined as <Window x:Class="Application.MainWindow" xmlns=&quot...

This example will go over the basic structure of a Cucumber feature file in Gherkin. Feature files use several keywords in the basic syntax. Lets look at the basic keywords: Feature: this keyword signifies that what follows is a basic description or name of the feature being tested or documented...

As you may have noticed in the example above, we are rewriting the same step multiple times: Given the user is on the login page This can be exceptionally tedious, especially if we have more than one given step that is reused. Gherkin provides a solution for this by giving us another keyword to ...

Since Bootstrap 4 is a major rewrite, many of the Bootstrap 3.x class names have changed or been removed. The restructuring of components such as the Navbar, and the introduction of new CSS classes and Flexbox support means that upgrading to 4.x is not a simple conversion process from 3.x. However,...

To install the Cucumber for Java plugin for IntelliJ on a Mac, Start IntelliJ IDEA. Click on the "IntelliJ IDEA" tab in the top bar. Click on "Preferences". In Preferences/Settings, click "Plugins" in the left-hand pane. Click the "Browse Repositories&quot...

If you're accepting user input for folder paths, you might need to check for trailing backslashes (\) before building a file path. The FSO.BuildPath method makes this simpler: Const sourceFilePath As String = "C:\Temp" '<-- Without trailing backslash Const targetFilePath As Strin...

If you add controls from third party libraries in a C# WPF project, the XAML file will normally have lines like this one. xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit" This will perhaps not work with FsXaml. The designer and the compiler accepts that line, but there will prob...

Let's assume you have a ListView wich is supposed to display every User object listed under the Users Property of the ViewModel where Properties of the User object can get updated programatically. <ListView ItemsSource="{Binding Path=Users}" > <ListView.ItemTemplate> ...

If a using-declaration occurs at class scope, it is only allowed to redeclare a member of a base class. For example, using std::cout is not allowed at class scope. Often, the name redeclared is one that would otherwise be hidden. For example, in the below code, d1.foo only refers to Derived1::foo(c...

public abstract class BaseActivity extends AppCompatActivity { private Map<Integer, PermissionCallback> permissionCallbackMap = new HashMap<>(); @Override protected void onStart() { super.onStart(); ... } @Override public void setConten...

When you're ready to upload your project to the phonegap-build service, zip the content of the www folder and upload the zip file to the phonegap-build service. It is recommended to only zip the content of the www folder, and not the www folder itself. However, this is just a recommendation and zip...

So, well, how on earth do you create a <md-button>, you may ask? All you have to do is to enter a <md-button>, along with your text for the button in it. index.html: <div ng-app="MdButtonApp"> <md-content ng-controller="Controller"> <h2...

I hope this example will help everyone to understand how awk internal variables like NR, FNR etc change when awk is processing two files. awk '{print "NR:",NR,"FNR:",FNR,"fname:",FILENAME,"Field1:",$1}' file1 file2 NR: 1 FNR: 1 fname: file1 Field1: f1d1 NR:...

Block will capture variables that appeared in the same lexical scope. Normally these variables are captured as "const" value: int val = 10; void (^blk)(void) = ^{ val = 20; // Error! val is a constant value and cannot be modified! }; In order to modify the variable, you need to ...

Following is the example of QLabel that displays use of texts,images and hyperlinks. import sys from PyQt4.QtCore import * from PyQt4.QtGui import * def window(): app = QApplication(sys.argv) win = QWidget() l1 = QLabel() l2 = QLabel() l3 = QLabel() l4 = QLabel()...

import sys from PyQt4 import QtGui def window(): app = QtGui.QApplication(sys.argv) w = QtGui.QWidget() b = QtGui.QLabel(w) b.setText("<h1>Welcome to PyQt4 SO Documentation!</h1>") w.setGeometry(100,100,550,65) b.move(50,20) w.setWindowTitle(&quo...