Mar 8, 2017 · User kokos answered the wonderful Hidden Features of C# question by mentioning the using keyword. Can you elaborate on that? What are the uses of using?

Dec 27, 2013 · 182 In C++11, the using keyword when used for type alias is identical to typedef. 7.1.3.2 A typedef-name can also be introduced by an alias-declaration. The identifier following …

Updating the using keyword was specifically for templates, and (as was pointed out in the accepted answer) when you are working with non-templates using and typedef are …

The using statement is used to work with an object in C# that implements the IDisposable interface. The IDisposable interface has one public method called Dispose that is used to …

Oct 29, 2019 · 46 Justin Lessard's answer explains the difference between using and await using, so I'll focus on which one to use. There are two cases: either the two methods Dispose / …

Oct 22, 2008 · But if you put the using declaration inside a namespace it's limited to the scope of that namespace, so is generally OK (with the usual caveats on your particular needs and style).

Feb 19, 2021 · Extremely good point. Of all the advantages using provides, it can't be combined with other predicates: select*from t join t2 using(i) and on 1 wouldnt work.

The problem with putting using namespace in the header files of your classes is that it forces anyone who wants to use your classes (by including your header files) to also be 'using' (i.e. …

Sep 20, 2013 · E.g. if you add using namespace std; you can write just cout instead of std::cout when calling the operator cout defined in the namespace std. This is somewhat dangerous …

There seem to be different views on using 'using' with respect to the std namespace. Some say use ' using namespace std', other say don't but rather prefix std functions that are to be used …