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Activity for Peter Taylor
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #280924 | Initial revision | — | about 3 years ago |
| Answer | — |
A: Update list based on presence of identifier in a second list This can't be done with the standard library. It's quite common for people who want to do this to define their own extension method public static void Foreach(this IEnumerable items, Action action) { foreach (var item in items) action(item); } which would allow the one-li... (more) |
— | about 3 years ago |
| Comment | Post #280755 |
@elgonzo, that's pretty much what I suspected. For my immediate purposes it's not strictly necessary to use an interface, but using an abstract class instead eliminates some interesting future directions. E.g. an orderable subtype and a field subtype couldn't be combined to an orderable field subtype... (more) |
— | about 3 years ago |
| Edit | Post #280755 | Initial revision | — | about 3 years ago |
| Question | — |
F-bounded polymorphism, interface operators, and type inference in C# C# language version 8.0 introduces limited support for static methods, operators, etc. in interfaces. However, there are still limitations. I was hoping to use the new language features to try a generic approach to abstract algebra with proper operator overloading, but I'm running into the limitation... (more) |
— | about 3 years ago |
| Comment | Post #280658 |
@ghost-in-the-zsh, not CPython, [Cython](https://cython.org/). (more) |
— | about 3 years ago |
| Comment | Post #280670 |
@Marc.2377, your example looks like it will compile. I don't know whether the example signature is the best one for your situation, because I'm very short on context. This may be a situation where you should iterate two or three steps of asking "Why do I want to do that?" and then formulate a new que... (more) |
— | about 3 years ago |
| Edit | Post #280670 | Initial revision | — | about 3 years ago |
| Answer | — |
A: Declaring interface members with generic return types: "The type parameter [generic type] cannot be used with type arguments" The short answer is that it can't be done. C# doesn't support type functions. https://github.com/dotnet/csharplang/issues/339 is probably the issue to follow if you want to track their progress. Workarounds are going to require another type parameter and probably a factory method: e.g. ... (more) |
— | about 3 years ago |
| Comment | Post #280665 |
I'm confused. https://docs.microsoft.com/en-us/dotnet/api/system.data.entity.dbcontext?view=entity-framework-6.2.0 doesn't list any `Add` method. Is that the wrong `DbContext`? (more) |
— | about 3 years ago |
| Edit | Post #280658 | Initial revision | — | about 3 years ago |
| Answer | — |
A: Interpreted language: What is its benefit for being written in that way ? Interpreters are easier to write than compilers. For this reason esoteric and toy languages are often implemented by interpretation. But the dichotomy between interpreted and compiled languages is a false one: a sufficiently popular language which initially has only an interpreter may well lat... (more) |
— | about 3 years ago |
| Edit | Post #280527 | Initial revision | — | over 3 years ago |
| Answer | — |
A: C# MVVM Login Project > xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" > xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" > xmlns:d="http://schemas.microsoft.com/expression/blend/2008" > xmlns:mc="http://schemas.openxmlformats.org/markup-comp... (more) |
— | over 3 years ago |
| Edit | Post #280473 | Initial revision | — | over 3 years ago |
| Question | — |
How to define custom configurations in new-style .csproj? Problem I'm trying to update some projects from old-style .csproj: > > > etc. to new-style: > > etc. One group of projects has a custom configuration, in addition to the standard `Debug` and `Release`. After I convert a project from this group, VS gives ... (more) |
— | over 3 years ago |
| Edit | Post #280397 | Initial revision | — | over 3 years ago |
| Answer | — |
A: Do we need the fullstack tag? To whether the tag is useful: no. It's useful for tagging people ("this person does frontend and backend") but not questions. I don't see the point of adding "do not use": just delete the tag, which is only on one question. (more) |
— | over 3 years ago |
| Comment | Post #279597 |
@Martin, I know: that was the assumption which seemed reasonable, and I don't think that "requiring that both are present" was in the question when I wrote the answer - but I can't check, because the [history has gone missing](https://meta.codidact.com/posts/279687). (more) |
— | over 3 years ago |
| Answer | — |
A: How can I write an egrep (grep -E) regexp that matches lines containing two stanzas in arbitrary order? This doesn't answer the question in full generality, but the assumption made seems reasonable to me: match lines containing `(x1=y2;|c5=c6;)` twice. I.e. ^(([^;]+; )(x1=y2;|c5=c6;) ?){2} (more) |
— | over 3 years ago |
| Edit | Post #279115 | Initial revision | — | over 3 years ago |
| Answer | — |
A: How to make Microsoft.Build.Evaluation.Project use same base properties as Visual Studio? By forking MSBuildLocator and basically just removing the `#ifdef` it's straightforward to list the available VS instances. It even works to register one, although if you want the same application to properly support both .Net Core and .Net Framework projects then you have to process them in differen... (more) |
— | over 3 years ago |
| Comment | Post #279087 |
Having tracked things through to https://github.com/microsoft/MSBuildLocator/blob/master/src/MSBuildLocator/MSBuildLocator.cs I'm rather pessimistic: it seems that `Microsoft.Build` is specifically set up to be unable to simultaneously be aware of the existence of .Net Framework and .Net Core, so tha... (more) |
— | over 3 years ago |
| Edit | Post #279087 | Initial revision | — | over 3 years ago |
| Question | — |
How to make Microsoft.Build.Evaluation.Project use same base properties as Visual Studio? `Microsoft.Build.Evaluation.Project` seems to have some rather odd ideas of what values to use when loading projects. In particular, I have a number of projects with the following dependency: Visual Studio consumes these projects without any problems, but if I try to load one of them with ... (more) |
— | over 3 years ago |
| Edit | Post #279027 | Initial revision | — | over 3 years ago |
| Answer | — |
A: What is the point of tagging a question with both a parent and a child tag? Tags also serve for someone who stumbles across the question directly from a third party link to find related content. Perhaps the child tag would suffice if the parent tag is automatically inserted in the page. (more) |
— | over 3 years ago |
| Edit | Post #278862 | Initial revision | — | over 3 years ago |
| Answer | — |
A: PHP script to create a KML square centred on a point. > echo "Enter Latitude\n"; > $handle = fopen("php://stdin", "r"); > $lat = deg2rad(trim(fgets($handle))); > fclose($handle); > echo "Enter Longitude\n"; > $handle = fopen("php://stdin", "r"); > $long = deg2rad(trim(fgets($handle))); > fclose($handle); > ech... (more) |
— | over 3 years ago |
| Comment | Post #278791 |
@Moshi, for people who mainly work close to the hardware, memory will probably be the salient meaning; for people who mainly work in high-level algorithm design, the abstract data structure also known as a priority queue will probably be the salient meaning; and there's probably a large number for wh... (more) |
— | over 3 years ago |
| Comment | Post #278832 |
Possibly [spreadsheet-formula] would work, with extra tags ([excel] and [google-sheets] already exist) where the question is about something specific to one engine. (more) |
— | over 3 years ago |
| Comment | Post #278751 |
@President, the sieve of Eratosthenes is faster for calculating all the primes from 2 up to N for reasonably sized N, but if you just want the first prime after 2^50 then Atkin-Bernstein should be faster. `LRUCache` is only a performance tweak: for simply running the code, it would suffice to comment... (more) |
— | over 3 years ago |
| Edit | Post #278751 | Initial revision | — | over 3 years ago |
| Question | — |
Improved Atkin-Bernstein sieve for generating primes This is a class from my personal code library, and from a package which deals with integer sequences. It implements an interface package org.cheddarmonk.math.sequence; public interface IntegerSequence extends Iterable { public int offset(); public int size(); public java.math.BigIn... (more) |
— | over 3 years ago |
| Comment | Post #278265 |
+1 but I'm wary of the point about best practices. Real praxis is rarely about optimising one factor at the cost of all else: it's about finding a compromise which isn't unnecessarily slow *or* unnecessarily hard to read *or* non-portable without documented reasoning, etc. (more) |
— | over 3 years ago |
| Comment | Post #278061 |
I had the same thought as aCVn. The question seems to be about using human-readable class names vs cargo-cult application of atomic styling. (more) |
— | over 3 years ago |
| Edit | Post #277999 | Initial revision | — | over 3 years ago |
| Answer | — |
A: Is it recommended for ASP.NET Web API actions to always include a CancellationToken? A cancellation token doesn't inherently do anything. It's up to the code which does the work to call `ThrowIfCancellationRequested`. If the token isn't passed on and isn't explicitly checked then there's no point passing it in. If the real question is whether to call `ThrowIfCancellationRequested`... (more) |
— | over 3 years ago |
| Comment | Post #277896 |
@EJP, regular expression != regex. Regex languages vary in power from Chomsky level 1 to 4. (more) |
— | over 3 years ago |
| Comment | Post #277885 |
Not an answer because I don't have a test environment to see whether it works, but have you tried (a) `javax.xml.accessExternalSchema = http` in `jaxp.properties`; (b) searching all files for other references to `javax.xml.accessExternalSchema` which might have priority; (c) logging `System.getProper... (more) |
— | over 3 years ago |
| Edit | Post #277235 | Post edited | — | over 3 years ago |
| Comment | Post #277263 |
Speaking as someone who has a *lot* of experience on codegolf.SE: writing a good spec for a challenge is *hard*. There's a reason that PPCG has a sandbox in meta and strongly encourages everyone to use it. And while there's obviously "real world" professional value in learning how to write a watertig... (more) |
— | over 3 years ago |
| Suggested Edit | Post #277235 |
Suggested edit: sp (more) |
helpful | over 3 years ago |
| Comment | Post #277183 |
In what way is writing a sed script *not* software development? The only grey issue I can see with the quoted subtitle is firmware programming. (more) |
— | over 3 years ago |
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