Re-posting a modified version of my answer from optimized sum of an array of doubles in C, since that question got voted down to -5. The OP of the other question phrased it more as “what else is possible”, so I took him at his word and info-dumped about vectorizing and tuning for current CPU … Read more
I still think using Join is simpler. Record the expected completion time (as Now+timeout), then, in a loop, do if(!thread.Join(End-now)) throw new NotFinishedInTime();
You can end up with invalid XML, but you will not find out until you parse it again – and then it is too late. I learned this the hard way.
The cleanest option I’ve found is adding your own simple InputFormatter: public class RawJsonBodyInputFormatter : InputFormatter { public RawJsonBodyInputFormatter() { this.SupportedMediaTypes.Add(“application/json”); } public override async Task<InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context) { var request = context.HttpContext.Request; using (var reader = new StreamReader(request.Body)) { var content = await reader.ReadToEndAsync(); return await InputFormatterResult.SuccessAsync(content); } } protected override bool CanReadType(Type type) … Read more
A good way to use services inside of hosted services is to create a scope when needed. This allows to use services / db contexts etc. with the lifetime configuration they are set up with. Not creating a scope could in theory lead to creating singleton DbContexts and improper context reusing (EF Core 2.0 with … Read more
Yes your reasoning is correct, that is how these different forms of array declarations and definitions are viewed by C and C++. As others already stated, VLA with a veritable variable length (non-const) in global scope is difficult to make sense. What would the evaluation order be, e.g if the the length expression would refer … Read more
Avoiding the cost of a function call is only half the story. do: use inline instead of #define very small functions are good candidates for inline: faster code and smaller executables (more chances to stay in the code cache) the function is small and called very often don’t: large functions: leads to larger executables, which … Read more
What you want isn’t possible directly but you can use Expressions in C# 3.0: public void ExampleFunction(Expression<Func<string, string>> f) { Console.WriteLine((f.Body as MemberExpression).Member.Name); } ExampleFunction(x => WhatIsMyName); Note that this relies on unspecified behaviour and while it does work in Microsoft’s current C# and VB compilers, and in Mono’s C# compiler, there’s no guarantee that … Read more
You have to understand the forwarding problem. You can read the entire problem in detail, but I’ll summarize. Basically, given the expression E(a, b, … , c), we want the expression f(a, b, … , c) to be equivalent. In C++03, this is impossible. There are many attempts, but they all fail in some regard. … Read more
This code snippet: int& func1() { int i; i = 1; return i; } will not work because you’re returning an alias (a reference) to an object with a lifetime limited to the scope of the function call. That means once func1() returns, int i dies, making the reference returned from the function worthless because … Read more