I'm writing a proof-of-concept JIT compiler in C, which at the moment is generating strings of assembly code. The inline assembly functionality in C only deals with string literals that are known at compile time, so I can't use it to run my generated-at-runtime code. I've read about using mmap() to execute generated machine code at runtime, but I'd like to avoid working with ma
我正在用C编写一个概念证明JIT编译器，目前它正在生成汇编代码的字符串。 C中的内联汇编功能只处理编译时已知的字符串文字，所以我不能用它来运行我生成的运行时代码。 我已经阅读过有关使用mmap（）在运行时执行生成的机器代码的问题，但是如果可能的话，我想避免使用机器代码。 有谁知道任何解决方案？ 我曾想过将它写入一个文件并调用所述文件中的汇编器和链接器，但那会很麻烦并且很慢。 我认为最终是“JIT”你需要时
TL;DR; Edit 6: I have narrowed it down and provided 5 steps to reproduce the problem/bug. Create a VS2017 c# Console App (.Net Full Framework) Add a method to the Program.cs and make the class public: public class Program { static void Main(string[] args) { } public int Add(int a, int b) { return a + b; } } } Right click the Add Method and choose Create Un
TL; DR; 编辑6：我缩小了范围，并提供了5个步骤来重现问题/错误。 创建一个VS2017 c＃控制台应用程序（.Net完整框架） 向Program.cs中添加一个方法并公开该类： public class Program { static void Main(string[] args) { } public int Add(int a, int b) { return a + b; } } } 右键单击Add方法并选择创建单元测试： 使用这些设置通过测试创建新的单元测试项目： 添加单元测试 [
I am trying to work with the ExpectedException attribute in a C# UnitTest , but I am having issues getting it to work with my particular Exception . Here's what I got: NOTE: I wrapped asterisks around the line that is giving me the trouble. [ExpectedException(typeof(Exception))] public void TestSetCellContentsTwo() { // Create a new Spreadsheet instance for this test:
我正在尝试在C# UnitTest使用ExpectedException属性，但是我遇到了问题，无法使用特定的Exception 。 这就是我得到的： 注意：我缠绕星号，给我带来麻烦。 [ExpectedException(typeof(Exception))] public void TestSetCellContentsTwo() { // Create a new Spreadsheet instance for this test: SpreadSheet = new Spreadsheet(); // If name is null then an InvalidNameException sh
I have discovered that these seem to be the two main ways of testing for exceptions: Assert.Throws<Exception>(()=>MethodThatThrows()); [ExpectedException(typeof(Exception))] Which of these would be best? Does one offer advantages over the other? Or is it simply a matter of personal preference? The first allows you to test for more than one exception, with multiple calls: Assert.T
我发现这些似乎是异常测试的两种主要方式： Assert.Throws<Exception>(()=>MethodThatThrows()); [ExpectedException(typeof(Exception))] 哪个最好？ 一个人比另一个人有优势吗？ 还是仅仅是个人喜好的问题？ 第一个允许您测试多个异常，并有多个调用： Assert.Throws(()=>MethodThatThrows()); Assert.Throws(()=>Method2ThatThrows()); 第二个只允许您测试每个测试功能的一个异常。 主要区别是：
Suppose, that there's a piece of code: enum Directions { North, South, East, West } // (...) switch (dir) { case North : // Do sth case South : // Do sth case East : // Do sth case West : // Do sth } Notice especially the lack of default: directive. Now suppose, that later someone added four more values to that enum: NorthEast , NorthWest , SouthEast , Sou
假设有一段代码： enum Directions { North, South, East, West } // (...) switch (dir) { case North : // Do sth case South : // Do sth case East : // Do sth case West : // Do sth } 特别注意缺少default:指令。 现在假设，稍后有人为该枚枚举增加了四个值： NorthEast ， NorthWest ， SouthEast ， SouthWest 。 在这种情况下，引用的代码很可能会影响未定义的行为，因为没有安
Is there a way to write that I'm expecting a certain exception for certain inputs when I use the Factory attribute? I know how to do it using the Row attribute but I need it for dynamically generated test inputs. See test example bellow for a function that returns the inverse of the provided string: [TestFixture] public class MyTestFixture() { private IEnumerable<object[]> TestDa
有没有一种方法可以写出，当我使用Factory属性时，我预计某些输入异常？ 我知道如何使用Row属性来完成它，但我需要它来动态生成测试输入。 有关函数返回提供的字符串的逆函数，请参见下面的测试示例： [TestFixture] public class MyTestFixture() { private IEnumerable<object[]> TestData { get { yield return new object[] { "MyWord", "droWyM" }; yield return new objec
This question already has an answer here: How does the compilation/linking process work? 5 answers Compiles the program and link it as an executable to a.out gcc helloworld.c Execute the file ./a.out Assuming the helloworld executable is in newDir directory in the home folder. Then the absolute path for helloworld is /home/user_name/newDir/helloworld Now add the below line your ~/.ba
这个问题在这里已经有了答案： 编译/链接过程如何工作？ 5个答案 编译程序并将其作为可执行文件链接到a.out gcc helloworld.c 执行该文件 ./a.out 假设helloworld可执行文件位于home文件夹的newDir目录中。 那么helloworld的绝对路径是/home/user_name/newDir/helloworld 现在添加下面的行~/.bashrc文件。 export PATH=$PATH:/home/user_name/newDir/ 现在打开任何新的终端（任何目录），你将能够运行命令hellowo
In commentary on this answer, a dispute arose over whether a conforming implementation of C2011 is required, during translation, to perform string concatenation of un-prefixed string literals with adjacent prefixed string literals. Examples: char16_t ustring[] = u"Unicode" " string"; wchar_t wstring[] = "Wide " L"string"; C99 did specify that such concatenation takes place. C++2011 is also pr
在关于这个答案的评论中，对翻译过程中是否需要C2011的一致性实现来执行字符串连接的未加前缀的字符串文字和相邻的前缀字符串文字产生了争议。 例子： char16_t ustring[] = u"Unicode" " string"; wchar_t wstring[] = "Wide " L"string"; C99确实规定了这种连接发生。 C ++ 2011在这个话题上也很清楚。 但是，C2011的相关条款与其中任何一条都有不同的限制性措辞： 在翻译阶段6，由任何相邻字符序列和相同前缀的字符
I am trying to translate a C program. The destination language doesn't really matter, I am just trying to understand what every single part of the program is doing. I cannot find any detail about: variable=1; while(variable); I understand that this is a loop and that is true (I have read similar questions on stack overflow where a code was actually executed) but in this case there is no
我正在尝试翻译一个C程序。 目标语言并不重要，我只是想了解程序的每个部分都在做什么。 我找不到任何细节： variable=1; while(variable); 我知道这是一个循环，这是真的（我已经读过堆栈溢出的代码实际执行的类似问题），但在这种情况下，没有代码与此相关。 所以我想知道，这个程序是否在“睡眠” - 而这个正在执行？ 那么，我不明白的另一部分是： variable=0; variable=variable^0x800000; 我相信价值应该是24位，
I'm reading a section about preprocessor in C Primer Plus and there is a paragraph which confuses me. It says that The compiler has to put a program through some translation phases before jumping into preprocessing. The compiler starts its work by mapping characters appearing in the source code to the source character set. Does this mean that the characters in the source code in mapped
我正在阅读关于C Primer Plus中预处理器的一节，并且有一段让我感到困惑。 它说 编译器必须在跳转到预处理之前通过一些翻译阶段来放置程序。 编译器通过将出现在源代码中的字符映射到源字符集来开始其工作。 这是否意味着源代码中的字符映射到编译器可以理解的某些机器码？