I've heard a lot about functional programming languages and I'm willing to learn one. I guess it will be mostly for fun, however, I hope it will improve my programming skills. I have mostly C#/.NET background, so my first choice is to learn F# (because of .NET and familiarity with Visual Studio). On the on other hand, I wonder if F# has features like Lisp macros or Haskell higher orde
我听过很多关于函数式编程语言的内容,我很乐意学习。 我想这主要是为了好玩,但是,我希望这会提高我的编程技能。 我主要是C#/ .net背景,所以我的第一选择是学习F#(因为.NET和熟悉Visual Studio)。 另一方面,我想知道F#是否具有诸如Lisp宏或Haskell高阶函数的功能。 你可以比较F#,Haskell和Lisp吗? 哪一个将成为您选择的语言? F#是我选择的语言,但我强烈建议学习它们。 他们都是完全不同而且有趣的。
How can I can draw a simple chart in Windows Phone 8 or 8.1 without using an external library, I want to use C# + XAML code only. I searched for a free library to do that on Windows Phone 8.1 (universal app) but I couldn't find any. All libraries I've found supported Windows Phone 8 or 7, not Windows Phone 8.1 . I made in answer in this similar question How to do Chart on Windows Pho
如何在不使用外部库的情况下在Windows Phone 8 or 8.1绘制简单的图表,我只想使用C#+ XAML代码。 我搜索了一个免费的图书馆在Windows Phone 8.1 (通用应用程序)上做到这一点,但我找不到任何图书馆。 我找到的所有库都支持Windows Phone 8或7,而不是Windows Phone 8.1 。 我在这个类似的问题中回答了如何在Windows Phone通用应用程序上绘制图表 它可能能够帮助你。 Telerik的API需要花钱,而Google有免费的API,可以
In short, I need to modify the current stack trace in C#, so that method that I call (which I cannot modify) would think that it was someone else who called it. Now, to give a little context about why I need to do such a horrible hack. In Unity3d, Debug.Log creates a new record in developer console. When you double-click it, it opens the IDE to show exact file and line that was responsible f
总之,我需要修改C#中的当前堆栈跟踪,以便我调用的方法(我无法修改)会认为它是其他人调用它的方法。 现在,为了说明为什么我需要做这样一个可怕的黑客行为。 在Unity3d中,Debug.Log在开发人员控制台中创建一条新记录。 当你双击它时,它会打开IDE显示对该记录负责的确切文件和行。 但是,由于各种原因(禁用生产中的调试,使其可用于其他线程)我创建了一个包装类Print ,而不是UnityEngine.Debug。 但是对于包装器
We have a lot of nested async methods and see behavior that we do not really understand. Take for example this simple C# console application using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace AsyncStackSample { class Program { static void Main(string[] args)
我们有很多嵌套的异步方法,并查看我们不太了解的行为。 以例如这个简单的C#控制台应用程序为例 using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace AsyncStackSample { class Program { static void Main(string[] args) { try { var x = Test(index: 0,
I get a StackOverflowException on ShimsContext.Create when running my unit test. In the code below, I can break on Thread.Sleep(0), so I know ShimsContext.Create is raising the exception. I have commented everything else out. Any idea why this happens or how to fix it? [TestMethod] public void MyTest() { Thread.Sleep(0); using (ShimsContext.Create()) {
在运行我的单元测试时,我在ShimsContext.Create上得到了一个StackOverflowException。 在下面的代码中,我可以分解Thread.Sleep(0),所以我知道ShimsContext.Create引发异常。 我已经评论了其他一切。 任何想法为什么发生这种情况或如何解决它? [TestMethod] public void MyTest() { Thread.Sleep(0); using (ShimsContext.Create()) { //commented out test logic that
I've read answers to similar questions about handling StackOverflowException, and I understand that starting from .net 2.0, the StackOverflowException terminates the process, and I'm fine with this. However, when stack overflow happens, I want to know why it happened, specifically I want to record the stacktrace. In Microsoft documentation, it's stated that you can process stackov
我已经阅读了关于处理StackOverflowException类似问题的答案,并且我知道从.net 2.0开始,StackOverflowException会终止该过程,并且我很好。 但是,当堆栈溢出发生时,我想知道它为什么发生,特别是我想记录堆栈跟踪。 在Microsoft文档中,声明如果为该方法设置了适当的属性,则可以处理stackoverflow异常: 从.NET Framework 4开始,除非事件处理程序对安全至关重要且具有HandleProcessCorruptedStateExceptionsAttribut
This question already has an answer here: C# catch a stack overflow exception 9 answers You are not allowed to catch a real stack overflow exception, which is why it won't work. Also see this discussion. I can't answer your second question, other than to say "the program's really messed-up". For your third question: Because it's running in a separate thread the
这个问题在这里已经有了答案: C#捕获堆栈溢出异常9个答案 你不能捕获真正的堆栈溢出异常,这就是为什么它不起作用。 另请参阅此讨论。 我不能回答你的第二个问题,除了说“这个程序真的搞砸了”之外。 对于第三个问题:因为它在单独的线程中运行,所以它运行的代码量将根据您何时中断程序而有所不同。 我认为只有通过一些繁琐的逐行调试,或者大量的Debug.WriteLine()才能实现这一点。 1)从.NET Framework 2.0版
This is just an "I am Curious" question. In C#-in-depth Jon Skeet says about lambda expressions: "if there is a nonvoid return type every code path has to return a compatible value." (Page 233) The footnote then says: "Code paths throwing exceptions don't need to return a value, of course, and neither do detectable infinite loops." (Page 233) I am won
这只是一个“我很好奇”的问题。 在C#中深入的Jon Skeet谈到了lambda表达式: “如果有一个nonvoid返回类型,则每个代码路径必须返回一个兼容值。” (页233) 脚注然后说: “当然,抛出异常的代码路径不需要返回值,也不会检测到无限循环。” (页233) 我想知道什么构成了无法察觉的无限循环? 这可以通过逻辑来完成吗? 还是通过使用外部因素(如数据库或文件系统)来完成? Jon所指的是在规范的第8.1节中描述的
Say you have a method that could potentially get stuck in an endless method-call loop and crash with a StackOverflowException. For example my naive RecursiveSelect method mentioned in this question. Starting with the .NET Framework version 2.0, a StackOverflowException object cannot be caught by a try-catch block and the corresponding process is terminated by default. Consequently, users are
假设你有一种方法可能会陷入无休止的方法调用循环,并导致StackOverflowException异常。 例如我在这个问题中提到的天真的RecursiveSelect方法。 从.NET Framework 2.0版开始,StackOverflowException对象不能被try-catch块捕获,并且相应的进程默认终止。 因此,建议用户编写代码来检测和防止堆栈溢出。 例如,如果您的应用程序依赖于递归,请使用计数器或状态条件来终止递归循环。 考虑到这个信息(来自这个答案),因为
I was told that every method has a stack the size of 1mb. So I assumed that initializing 256 integer values in one method will cause a StackOverflowException. I tried that in code, but no exception was thrown. So, how to deliberately trigger a StackOverflowException without using recursion? I'll add another method :-) unsafe struct FixedBufferExample { public fixed byte Buffer[128
我被告知每种方法都有1MB大小的堆栈。 所以我假定在一个方法中初始化256个整数值将导致StackOverflowException。 我在代码中试过,但没有抛出异常。 那么,如何在不使用递归的情况下故意触发StackOverflowException? 我会添加另一种方法:-) unsafe struct FixedBufferExample { public fixed byte Buffer[128 * 1024]; // This is a fixed buffer. } 现在这个结构是128kb :-)如果你声明一个类型为FixedBufferExampl