Yes, in theory. Not normally, in the real world. In the common case, async is used for I/O-bound operations, and the overhead of thread management is undetectable in comparison to them. Most of the time, asynchronous operations either take a very long time (compared to thread management) or are already completed (e.g., a cache). Note …
Short version: Types in C++ are: Object types: scalars, arrays, classes, unions Reference types Function types (Member types) [see below] void Long version Object types Scalars arithmetic (integral, float) pointers: T * for any type T enum pointer-to-member nullptr_t Arrays: T[] or T[N] for any complete, non-reference type T Classes: class Foo or struct Bar …
Unfortunately, no As i’m sure you’re aware, but I’ll state explicitly for completeness – there are only the 2 keywords to control the method invocation: this – this.method() – looks for method starting from the invoking instance’s class (the instance’s “top” virtual table – implied default) super – super.method() – looks for method starting from …
There are two main classes of regex engines. Those based on Finite State Automaton. These are generally the fastest. They work by building a state machine, and feeding it characters from the input string. It is difficult, if not impossible, to implement some more advanced features in engines like this. Examples of FSA based engines: …
Fuzzy logic is logic where state membership is, essentially, a float with range 0..1 instead of an int 0 or 1. The mileage you get out of it is that things like, for example, the changes you make in a control system are somewhat naturally more fine-tuned than what you’d get with naive binary logic. …
Set.retainAll() is how you find the intersection of two sets. If you use HashSet, then converting your ArrayLists to Sets and using retainAll() in a loop over all of them is actually O(n).
Statistics. The de facto standard for testing RNGs is the Diehard suite (originally available at http://stat.fsu.edu/pub/diehard). Alternatively, the Ent program provides tests that are simpler to interpret but less comprehensive. As for shuffling algorithms, use a well-known algorithm such as Fisher-Yates (a.k.a “Knuth Shuffle”). The shuffle will be uniformly random so long as the underlying …
The reason that Turing Machines are a big deal has to do with the study of classical Computing Science or Theory of Computation type stuff. It’s basically about analyzing the general properties of a computer, such as what theoretical abilities and limitations a computer has, as well as what we mean when we talk about …
You can do: someBool = (someStatement) ? true : someBool; I don’t think that gains you a lot of clarity over: if (someStatement) { someBool = true; } But it really seems to be a matter of taste. I wouldn’t say either is clearly bad, but the former is uncommon, so I’d probably avoid it. …
While a block is just a piece of code that can be composed by statements and declarations but nothing else, a closure is a real first-class object, a real variable that has a block as its value. The main difference is that a block simply groups instructions together (for example the body of a while …