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- What are the uses of using in C#? - Stack Overflow
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?
- c# - try catch + using, right syntax - Stack Overflow
In other word, if you know that the initialization of a variable in using may throw a particular exception, I wrap it with try-catch Similarly, if within using body something may happen, which is not directly related to the variable in using, then I wrap it with another try for that particular exception I rarely use Exception in my catch es
- What is the difference between typedef and using?
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 mechanically identical, so the choice is totally up to the programmer on the grounds of readability and communication of intent
- What is the logic behind the using keyword in C++?
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 the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name
- What scope does a using statement have without curly braces
So if you are using using var resp = req GetResponse() inside of the root block of a method, then the using variable will have method scope, actually similar to the defer statement in go
- MySQL JOIN ON vs USING? - Stack Overflow
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
- Whats the scope of the using declaration in C++?
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)
- Whats the problem with using namespace std;?
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 seeing everything in) those other namespaces However, you may feel free to put a using statement in your (private) * cpp files
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