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What are the main purposes of using std::forward and which problems it solves?
In perfect forwarding, std::forward is used to convert the named rvalue references t1 and t2 to unnamed rvalue references. What is the purpose of doing that? How would that affect the called function inner if we leave t1 & t2 as lvalues?
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LISTAGG in Oracle to return distinct values
I am trying to use the LISTAGG function in Oracle. I would like to get only the distinct values for that column. Is there a way in which I can get only the distinct values without creating a function or a procedure?
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Subclassing a Java Builder class
Give this Dr Dobbs article , and the Builder Pattern in particular, how do we handle the case of subclassing a Builder? Taking a cut-down version of the example where we want to subclass to add GMO labelling, a naive implementation would be:
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JSP tricks to make templating easier?
At work I've been tasked with turning a bunch of HTML files into a simple JSP project. It's really all static, no serverside logic to program. I should mention I'm completely new to Java. JSP files seem to make it easy to work with common includes and variables, much like PHP , but I'd like to ...
Add new item in existing array in c#.net
How to add new item in existing string array in C#.net?
20 Answers
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What is the difference between SQL, PL-SQL and T-SQL?
What is the difference between SQL, PL-SQL and T-SQL?
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Casting a variable using a Type variable
In C# can I cast a variable of type object to a variable of type T where T is defined in a Type variable?
12 Answers
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How to access random item in list?
I have an ArrayList, and I need to be able to click a button and then randomly pick out a string from that list and display it in a messagebox.
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How to check if IEnumerable is null or empty?
I love string.IsNullOrEmpty method. I'd love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection helper class? The reason I am asking is that in if statements the code looks cluttered if the patter is (mylist != null && mylist....
How can I get this ASP.NET MVC SelectList to work?
I create a selectList in my controller, to display in the view.
23 Answers
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