If you’re looking for a way of applying the static keyword to a class, like you can in C# for example, then you won’t be able to without using Managed C++. But the looks of your sample, you just need to create a public static method on your BitParser object. Like so: BitParser.h class BitParser … Read more
Maybe a bit of example code will help: Notice the difference in the call signatures of foo, class_foo and static_foo: class A(object): def foo(self, x): print(f”executing foo({self}, {x})”) @classmethod def class_foo(cls, x): print(f”executing class_foo({cls}, {x})”) @staticmethod def static_foo(x): print(f”executing static_foo({x})”) a = A() Below is the usual way an object instance calls a method. The … Read more
One way to do this would be with a decorator (PEP for decorators) (first of a series of tutorial articles on decorators). Here’s an example that does what you want. from functools import wraps from time import time def timed(f): @wraps(f) def wrapper(*args, **kwds): start = time() result = f(*args, **kwds) elapsed = time() – … Read more
It’s called static variables and static methods. Just try it and see that it compiles.
Terminology Mental model: A variable stored in an instance or class is called an attribute. A function stored in an instance or class is called a method. According to Python’s glossary: attribute: A value associated with an object which is referenced by name using dotted expressions. For example, if an object o has an attribute … Read more
I suggest 4 solutions, from the worst to the best (IMHO), but of course it also depends on your specific constraints: Replace the instance method (1): I use the fact that functions are descriptors in Python, so that I can use the __get__ method on AlternativeFunc to get it as a method of the instance … Read more
scoped_ptr is very good for this purpose. But one has to understand its semantics. You can group smart pointers using two major properties: Copyable: A smart pointer can be copied: The copy and the original share ownership. Movable: A smart pointer can be moved: The move-result will have ownership, the original won’t own anymore. That’s … Read more
In ES6/ ES2015 you can use the Object.assign method let obj = {key1: true}; console.log(‘old obj: ‘, obj); let newObj = {key2: false, key3: false}; Object.assign(obj, newObj); console.log(‘modified obj: ‘, obj);
List<T> uses a backing array to hold items: Indexer access (i.e. fetch/update) is O(1) Remove from tail is O(1) Remove from elsewhere requires existing items to be shifted up, so O(n) effectively Add to end is O(1) unless it requires resizing, in which case it’s O(n). (This doubles the size of the buffer, so the … Read more