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What is a void pointer in C++? [duplicate]
...doing one of the following:
It is dealing in unformatted memory. This is what operator new and malloc return: a pointer to a block of memory of a certain size. Since the memory does not have a type (because it does not have a properly constructed object in it yet), it is typeless. IE: void.
It is ...
What is std::move(), and when should it be used?
... effects. It just signals to the compiler that the programmer doesn't care what happens to that object any more. i.e. it gives permission to other parts of the software to move from the object, but it doesn't require that it be moved. In fact, the recipient of an rvalue reference doesn't have to mak...
Double Iteration in List Comprehension
...for word in sentence]
Example:
>>> text = (("Hi", "Steve!"), ("What's", "up?"))
>>> [word for sentence in text for word in sentence]
['Hi', 'Steve!', "What's", 'up?']
This also works for generators
>>> text = (("Hi", "Steve!"), ("What's", "up?"))
>>> gen = (...
Hash Code and Checksum - what's the difference?
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Er, maybe I misworded what I said? I was referring to the part where you said "as far as possible" -- I'm just saying there's no reason for them to be unpredictable or "far" like hashes are. As long as there is some change in the checksum when the...
What's the difference between Task.Start/Wait and Async/Await?
I may be missing something but what is the difference between doing:
6 Answers
6
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What's the best way to learn LISP? [closed]
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Don't forget about the REPL! I haven't used what I learned about LISP, but it made me a much better programmer in all other languages.
– Robert K
Dec 29 '08 at 21:40
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What are the rules for evaluation order in Java?
...th associativity and precedence. Associativity and precedence determine in what order the operators are executed but do not determine in what order the subexpressions are evaluated. Your question is about the order in which subexpressions are evaluated.
Consider A() + B() + C() * D(). Multiplicati...
What's the difference between a web site and a web application? [closed]
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If you're just looking to express yourself clearly when speaking about what you're building, I would continue to describe something that is an interactive brochure or business card as a "web site" and something that actually *does something that feels more like an application as a web app.
The ...
What's the difference between returning void and returning a Task?
...I'd just add a bit more context.
Your first question is essentially about what methods can be marked async.
A method marked as async can return void, Task or Task<T>. What are the differences between them?
A Task<T> returning async method can be awaited, and when the task complete...
What are forward declarations in C++?
...hat would have to contain information about all the possible guesses as to what the function 'add' might be. And the linker would have to contain very clever logic to try and work out which 'add' you actually intended to call, when the 'add' function may live in a different object file the linker is...