Why is auto ptr deprecated

It is called every deviceMotionUpdateInterval seconds or you can go with your own timer loop and pull the data. It is pretty straightforward and easy to use. You're right in saying there is no real advantage to using var over let - if you define them at the start of a function their meaning is basically identical. You're right that there is no real reason to write new code using var except maybe this, if relevant.

There are pages on the internet that are decades old though, and no one is going to rewrite them. There is nothing really to gain by removing var from the language.

The exact meaning varies depending on whether the smart pointer type is a parameter or a return type. Pointer Container provides an overload for each type supported by the compiler. The convention outlined above implies that in certain cases the documentation will make reference to a single function taking the compatible smart pointer pseudo parameter, when in fact two distinct overloaded functions are present. Of course the actual interface depends on compiler settings, so for clarity the class hierarchy reference will only ever refer to a single function.

Why is this? Simply, because although the destructor called by std::vector , it does NOT remove the allocations that were made by the new operator, when creating the Option object. Although the above code will compile and run, it is bad practice to use such containers of "dumb" pointers due to the fragility of the function. The solution to such a problem is to use a smart pointer. Let's modify the function prototype code above to make use of it:.

Algorithms, such as those involved in sorting STL containers, often copy objects while carrying out their tasks. A shared pointer is useful because it removes the possibility of a memory leak due to neglect of iterating over the vector and calling delete for each item.

Learn more. Ask Question. Asked 6 years, 3 months ago. Active 2 years, 10 months ago. Viewed 9k times. Improve this question. MetaFight As an aside, you may want to fold Foo::Initialize into Foo::Foo. MSalters - yeah, that has always been one of those things I have felt mildly uncomfortable about. The library was designed in the s, and I think the design was similar to MFC. I think the feature was used as a tradeoff so classes don't have 6 or 12 different constructors.