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// 2. Covariant result version of the base example, static type checking. class Top { public: virtual Top* clone() const = 0; virtual ~Top() = default; // Necessary for `delete` via Top*. }; class D : public Top { public: D* /* ← Covariant return */ clone() const over...

Resource with same path and name may exist in more than one JAR file on the classpath. Common cases are resources following a convention or that are part of a packaging specification. Examples for such resources are META-INF/MANIFEST.MF META-INF/beans.xml (CDI Spec) ServiceLoader properties con...

After launching Visual Studio 2015, go to File → New → Project. In the New Project dialog box, browse in the templates tree to Visual C# → Windows → Universal and select Blank App (Universal Windows). Next, we need to fill the form to describe the Application: Name: this is the name of the appli...

Create an empty directory somewhere ... mkdir HelloWorld cd HelloWorld Then use the built in scaffolding technology to create a Hello World sample dotnet new console -o This command creates two files: HelloWorld.csproj describes the project dependencies, settings, and Target Framework ...

Update: TensorFlow now supports 1D convolution since version r0.11, using tf.nn.conv1d. Consider a basic example with an input of length 10, and dimension 16. The batch size is 32. We therefore have a placeholder with input shape [batch_size, 10, 16]. batch_size = 32 x = tf.placeholder(tf.float...

This topic explains the concept of an object reference; it is targeted at people who are new to programming in Java. You should already be familiar with some terms and meanings: class definition, main method, object instance, and the calling of methods "on" an object, and passing parameter...

One example per topic may be pinned by clicking the pin icon in the bottom left corner of the example. So long as a topic is pinned, it will stay at the top of a topic's example collection.

CROSS APPLY enables you to "join" rows from a table with dynamically generated rows returned by some table-value function. Imagine that you have a Company table with a column that contains an array of products (ProductList column), and a function that parse these values and returns a set ...

This counts the number of lines in a big file with wc -l while simultaneously compressing it with gzip. Both run concurrently. tee >(wc -l >&2) < bigfile | gzip > bigfile.gz Normally tee writes its input to one or more files (and stdout). We can write to commands instead of fil...

Class Car ... ' Parameterless Constructor Public Sub Class_Initialize() distances_ = Array(0) End Sub ' Default initialization method that can be invoked without ' explicitly using the method name. Public Default Function Init(wheels) wheels_ = ...

Enumeration types can also be declared without giving them a name: enum { buffersize = 256, }; static unsigned char buffer [buffersize] = { 0 }; This enables us to define compile time constants of type int that can as in this example be used as array length.

To get started: Install celery pip install celery configure celery (head to the remarks section) from __future__ import absolute_import, unicode_literals from celery.decorators import task @task def add_number(x, y): return x + y You can run this asynchronously by using the ....

You can have functions in the PS1 variable, just make sure to single quote it or use escape for special chars: gitPS1(){ gitps1=$(git branch 2>/dev/null | grep '*') gitps1="${gitps1:+ (${gitps1/#\* /})}" echo "$gitps1" } PS1='\u@\h:\w$(gitPS1)$ ' It will...

class ImageCreationExample { static Image createSampleImage() { // instantiate a new BufferedImage (subclass of Image) instance BufferedImage img = new BufferedImage(640, 480, BufferedImage.TYPE_INT_ARGB); //draw something on the image paintOnI...

Create a simple DataFrame. import numpy as np import pandas as pd # Set the seed so that the numbers can be reproduced. np.random.seed(0) df = pd.DataFrame(np.random.randn(5, 3), columns=list('ABC')) # Another way to set column names is "columns=['column_1_name','column_2_name','c...

The ServiceLoader is a simple and easy to use built-in mechanism for dynamic loading of interface implementations. With the service loader - providing means for instantation (but not the wiring) - a simple dependency injection mechanism can be built in Java SE. With the ServiceLoader interface and ...

foo() { while [[ "$#" -gt 0 ]] do case $1 in -f|--follow) local FOLLOW="following" ;; -t|--tail) local TAIL="tail=$2" ;; esac shift done echo "FOLLOW: $FOLLOW" echo "TAIL: $...

Code class Program { static void Main(string[] args) { int a = 20; Console.WriteLine("Inside Main - Before Callee: a = {0}", a); Callee(a); Console.WriteLine("Inside Main - After Callee: a = {0}", a); Console.WriteLine(); ...

If we know the desired URI of the document we are looking for: fn:doc("/stuff/mysimpledocument.xml") Returns the full document from the database, using the URI to locate it. Since this is XQuery, we can use XPath to find the document when we know about the structure, but not the URI: ...

MarkLogic is first and foremost a search engine, so let's use two different methods to search for this document. Using search:search() This gives a peek into using search:search() to develop search applications. This library provides Google-like search results and will likely speed up your develop...