Look at the grammar for the C language. It’s listed, in full, in Appendix A of the standard. The way it works is that you can step through each token in a C program and match them up with the next item in the grammar. At each step you have only a limited number of … Read more
Java 8 (2014) has added IntStream (similar to apache commons IntRange), so you don’t need external lib now. import java.util.stream.IntStream; IntStream.range(0, 3).forEachOrdered(n -> { System.out.println(n); }); forEach can be used in place of forEachOrdered too if order is not important. IntStream.range(0, 3).parallel() can be used for loops to run in parallel
You should use the reduce method to sum your sequence elements as follow: Xcode Xcode 10.2+ • Swift 5 or later extension Sequence where Element: AdditiveArithmetic { /// Returns the total sum of all elements in the sequence func sum() -> Element { reduce(.zero, +) } } extension Collection where Element: BinaryInteger { /// Returns … Read more
Local functions in C# are clever in terms of their capturing – at least in the Roslyn implementation. When the compiler is able to guarantee that you aren’t creating a delegate from the local function (or doing something else that will prolong the lifetime of the variable) it can use a ref parameter with all … Read more
Using dependency injection (either option 2 or 4) is definitely my preferred method of attacking this. Not only does it make testing easier it helps to separate concerns and keep classes from getting bloated. A clarification I need to make though is it is not true that static methods are hard to test. The problem … Read more
Why are braces used by default to enclose the function body instead of parentheses? The body of a function can be any compound command. This is typically { list; }, but three other forms of compound commands are technically allowed: (list), ((expression)), and [[ expression ]]. C and languages in the C family like C++, … Read more
You can call a Javascript function with any number of parameters, regardless of the function’s definition. Any named parameters that weren’t passed will be undefined. Extra parameters can be accessed through the arguments array-like object.
Your function has a couple of smallint parameters. But in the call, you are using numeric literals that are presumed to be type integer. A string literal or string constant (‘123’) is not typed immediately. It remains type “unknown” until assigned or cast explicitly. However, a numeric literal or numeric constant is typed immediately. The … Read more