Which C# XML documentation comment tag is used for ‘true’, ‘false’ and ‘null’?
You should use the <see langword=”true”/> entry so that it works right for whatever language is being used.
literals
Is 0 an octal or a decimal in C? [duplicate]
It makes little difference, but formally the integer constant 0 is octal in C. From the C99 and C11 standards, 6.4.4.1 Integer constants integer-constant: decimal-constant integer-suffixopt octal-constant integer-suffixopt hexadecimal-constant integer-suffixopt decimal-constant: nonzero-digit decimal-constant digit octal-constant: 0 octal-constant octal-digit hexadecimal-constant: … …
How to set bool pointer to true in struct literal?
You can do that but it’s not optimal: h := handler{is: &[]bool{true}[0]} fmt.Println(*h.is) // Prints true Basically it creates a slice with one bool of value true, indexes its first element and takes its address. No new variable is created, but there is a lot of boilerplate (and backing array will remain in memory until … Read more
What is a class literal in Java?
Class<String> c = String.class; Check out the Javadoc for java.lang.Class to see what you can do with one of these little guys – mostly related to reflection
What does the @ prefix do on string literals in C#
@ is not related to any method. It means that you don’t need to escape special characters in the string following to the symbol: @”c:\temp” is equal to “c:\\temp” Such string is called ‘verbatim’ or @-quoted. See MSDN.
PHP object literal
As BoltClock mentioned there is no object literal in PHP however you can do this by simply type casting the arrays to objects: $testArray = array( (object)array(“name” => “John”, “hobby” => “hiking”), (object)array(“name” => “Jane”, “hobby” => “dancing”) ); echo “Person 1 Name: “.$testArray[0]->name; echo “Person 2 Hobby: “.$testArray[1]->hobby;
How to make eclipse “File Search” to also search inside source jars containing some text?
Recently discovered the following plugin has beta support for searching into linked source jars: https://github.com/ajermakovics/eclipse-instasearch You have to enable searching source jars in the preferences as it is turned off by default. Depending on how much source you have, the indexing process is very slow, but then search is very fast. I have an Eclipse … Read more
Purpose of Scala’s Symbol? [duplicate]
Symbols are used where you have a closed set of identifiers that you want to be able to compare quickly. When you have two String instances they are not guaranteed to be interned[1], so to compare them you must often check their contents by comparing lengths and even checking character-by-character whether they are the same. … Read more
What is array literal notation in javascript and when should you use it?
array literal notation is where you define a new array using just empty brackets. In your example: var myArray = []; It is the “new” way of defining arrays, and I suppose it is shorter/cleaner. The examples below explain the difference between them: var a = [], // these are the same b = new … Read more
Why are string literals l-value while all other literals are r-value?
A string literal is a literal with array type, and in C there is no way for an array type to exist in an expression except as an lvalue. String literals could have been specified to have pointer type (rather than array type that usually decays to a pointer) pointing to the string “contents”, but … Read more