What does -> mean in Python function definitions? - Stack Overflow
2013年1月17日 · With between and the inner function _between it is not needed but confusing if the same name. These could be the same names. With the lambda, you have the name (key of a dict) of the lambda function and the name of the argument. Again, similar but confusing if …
c++ - Arrow operator (->) in function heading - Stack Overflow
@Shadi, C++14 includes N3638, which allows deduction of the return type declared as auto, without the -> notation, as long as the function is fully defined before use and all return statements deduce to the same type. The -> notation is still useful if you want to use deduction for public function while hiding the body in the source file. –
c - Function declaration: K&R vs ANSI - Stack Overflow
That's a part of the K & R definition. Quote Wikipedia: In early versions of C, only functions that returned a non-int value needed to be declared if used before the function definition; a function used without any previous declaration was assumed to return type int, if its value was used.
Max and min of functions in order-notation - Stack Overflow
2012年1月18日 · With Big-O notation, you're talking about upper bounds on computation. This means that you are only interested in the largest term of the combined function as n (the variable) tends to infinity. What's more, you drop any constant multipliers as well since the formal definition of the notation allows you to discard those parts, which is ...
What is "function*" in JavaScript? - Stack Overflow
2012年3月8日 · The function* type looks like it acts as a generator function for processes that can be iterated. C# has a feature like this using "yield return" see 1 and see 2. Essentially this returns each value one by one to whatever is iterating this function, which is why their use case shows it in a foreach style loop.
algorithm - Big O Notation: Definition - Stack Overflow
2016年6月20日 · In the formal definition of big-O notation, the functions f(n) and g(n) are placeholders for other functions, the same way that, say, in the quadratic formula, the letters a, b, and c are placeholders for the actual coefficients in the quadratic equation.
c - Function definition with an ellipsis - Stack Overflow
2019年4月10日 · If a function that accepts a variable number of arguments is defined without a parameter type list that ends with the ellipsis notation, the behavior is undefined So I don't really understand what did they mean by
dot notation in Python's function definition - Stack Overflow
2020年11月21日 · This is much better, because each explicit call to count returns a new function, instead of the single global function being given the attribute like before. If you wanted to track two separate instances of calls at once, you would just need to call count twice, then hold onto each returned function. You could also return a getter.
What is a plain English explanation of "Big O" notation?
2009年1月28日 · The simplest definition I can give for Big Oh notation is this: Big Oh notation is a relative representation of the complexity of an algorithm. There are some important and deliberately chosen words in that sentence: relative: you can only compare apples to apples. You can't compare an algorithm that does arithmetic multiplication to an ...
What does ** (double star/asterisk) and * (star/asterisk) do for ...
2008年8月31日 · Let us first understand what are positional arguments and keyword arguments. Below is an example of function definition with Positional arguments. def test(a,b,c): print(a) print(b) print(c) test(1,2,3) #output: 1 2 3 So this is a function definition with positional arguments. You can call it with keyword/named arguments as well: