Using CMake to generate Visual Studio C++ project files

I am working on an open source C++ project, for code that compiles on Linux and Windows. I use CMake to build the code on Linux. For ease of development setup and political reasons, I must stick to Visual Studio project files/editor on Windows (I can't switch to Code::Blocks, for example). I see instructions to generate Visual Studio files using CMake, as here. Have you used CMake to gen

使用CMake生成Visual Studio C ++项目文件

我正在开发一个开源的C ++项目,用于在Linux和Windows上编译的代码。 我使用CMake在Linux上构建代码。 为了便于开发设置和政治原因,我必须坚持使用Windows上的Visual Studio项目文件/编辑器(例如,我无法切换到Code :: Blocks)。 我看到使用CMake生成Visual Studio文件的说明,如下所示。 你以前用过CMake生成Visual Studio文件吗? 你的经历如何? 假设我想将一个新文件添加到我的项目中。 这是什么工作流程? CMa

Bitwise operators, not vs xor use in branching

After asking this SO question, I received a very interesting comment from @AndonM.Coleman that I had to verify. Since your disassembled code is written for x86, it is worth pointing out that XOR will set/clear the Zero Flag whereas NOT will not (sometimes useful if you want to perform a bitwise operation without affecting jump conditions that rely on flags from previous operations). Now, consi

按位运算符,而不是xor用于分支

在提出这个问题之后,我收到了@ AndonM.Coleman的一个非常有趣的评论,我必须证实。 由于您的反汇编代码是为x86编写的,值得指出的是XOR将设置/清除零标记,而NOT不会(如果要在不影响依赖于先前操作标记的跳转条件的情况下执行按位操作,则有时不会有用) 。 现在,考虑到你不是直接编写程序集,你真的没有办法以有意义的方式访问这个标志,所以我怀疑这是支持这个标志的原因。 他的评论让我很好奇,如果下面的代码会产生

Logical XOR operator in C++?

Is there such a thing? It is the first time I encountered a practical need for it, but I don't see one listed in Stroustrup. I intend to write: // Detect when exactly one of A,B is equal to five. return (A==5) ^^ (B==5); But there is no ^^ operator. Can I use the bitwise ^ here and get the right answer (regardless of machine representation of true and false)? I never mix & and &

C ++中的逻辑XOR运算符?

有这样的事吗? 这是我第一次遇到它的实际需求,但我没有看到在Stroustrup中列出的一个。 我打算写: // Detect when exactly one of A,B is equal to five. return (A==5) ^^ (B==5); 但是没有^^操作符。 我可以在这里使用按位^来获得正确的答案(不管机器表示的真假)? 我从不混合&和&&或| 和|| ,所以我犹豫要用^和^^来做那个。 我会更自在地编写我自己的bool XOR(bool,bool)函数。 !=运算符为bool值

Swap two variables with XOR

With the following method we can swap two variable A and B A = A XOR B B = A XOR B A = A XOR B I want to implement such a method in C++ that operate with all types (int, float, char, ...) as well as structures. As we know all types of data including structures take a specific space of memory, for example 4 bytes, 8 bytes In my opinion this method for swapping must work with all types excludi

用XOR交换两个变量

通过以下方法,我们可以交换两个变量A和B A = A XOR B B = A XOR B A = A XOR B 我想在C ++中实现这样一种方法,它可以处理所有类型(int,float,char,...)以及结构。 正如我们所知,包括结构在内的所有类型的数据都需要一个特定的内存空间,例如4个字节,8个字节 在我看来,这种交换方法必须适用于所有类型,不包括基于指针的类型,它应该交换两个变量的内存内容,即比特 我的问题 我不知道如何在C ++中实现与结构

How are template definitions matched to template declarations?

How exactly is a template declaration matched to a template definition? I found some text in the standard about template-ids referring to the same function if "their template-names [...] refer to the same template and [...]" (14.4 [temp.type] p1) but I can't find a definition for template-names or when template-names refer to the same template. I'm not sure if I'm on the r

模板定义如何与模板声明相匹配?

模板声明到底如何与模板定义匹配? 如果“他们的模板名[...]引用相同的模板和[...]”(14.4 [temp.type] p1),我发现标准中关于template-id的一些文本引用了相同的函数,但是我找不到模板名称的定义或模板名称引用同一模板时。 我不知道我是否在正确的轨道上,因为我还没有足够好地分解语法来判断template-id是模板定义/声明的一部分,还是仅仅使用了模板。 例如,下面的程序工作正常。 #include <iostream> template&

FlexLexer.h: No such file or directory flex++

I'm trying to write a program using flex++, however everytime I try to compile I receive the error message: FlexLexer.h: No such file or directory However that header is found on the include folder of flex. I don't have problems compiling lex programs for c, however for c++ with flex++ I can't seem to find a way. I already downloaded flex various times and I don't know if th

FlexLexer.h:没有这样的文件或目录flex ++

我试图用flex ++编写一个程序,但每次尝试编译时都会收到错误消息: FlexLexer.h:没有这样的文件或目录 但是,该标题可以在flex的include文件夹中找到。 我没有编译用于c的lex程序的问题,但是对于使用flex ++的c ++,我似乎无法找到方法。 我已经下载过不同次的flex,我不知道我的操作系统是否有问题或类似的问题。 我的操作系统是Windows 10.谢谢 包括应该是相当简单的,一旦你了解它是如何工作的。 让我们看看你

Common difficulty with Flex++

Note: Someone with over 1500 rep.. please add flex++ and bison++ as tags :). Seems like people all over the Internet have been getting the following errors with Flex++: scanner.l:1: bad character: % scanner.l:1: unknown error processing section 1 This happens on any example I give Flex++. The version I have is from here and I have tried the exact examples on that page and I still get these e

Flex ++的常见困难

注意:有人超过1500代表..请添加flex ++和bison ++作为标签:)。 似乎互联网上的所有人都使用Flex ++获得以下错误: scanner.l:1: bad character: % scanner.l:1: unknown error processing section 1 这发生在我给Flex ++的任何示例上。 我有的版本是从这里,我已经尝试了该页面上的确切例子,我仍然得到这些错误。 我尝试过在Linux和Mac上完全没有想法! 看起来像Flex ++是一个老病毒的名字,所以它很难得到有用的讨论

No compliant way to convert signed/unsigned of same size

I fear I may be missing something trivial, but it appears there is no actual safe way to convert to/from a signed type if you wish to retain the original unsigned value. On reinterpret_cast, 5.2.10 does not list an integer to integer conversion, thus it is not defined (and static_cast defines no additional conversion). On integral conversions 4.7.3 basically says conversion of a large unsigned

没有兼容的方式来转换相同大小的有符号/无符号

我担心我可能会丢失一些微不足道的东西,但是如果您希望保留原始的无符号值,似乎没有实际的安全方式来转换为签名类型或从其转换。 在reinterpret_cast上,5.2.10没有列出一个整数到整数转换,因此它没有被定义(并且static_cast没有定义额外的转换)。 关于积分转换4.7.3基本上说大的无符号转换将被实现定义(因此不可移植)。 这似乎是有限制的,因为我们知道,例如,在任何硬件上, uint64_t应该可以安全地转换为int64_t

How do I use an exisiting function pass from my LLVM

I have been using LLVM and I was confused how to use a different already present pass from my own pass ? Precisely my program needs Dominance Frontier Calculation for any given instruction. LLVM already has the Dominance function Class that is implemented as a function pass. How can i invoke it/make use of it in my Module Pass ? WARNING: I have no real experience and answer may be incorrect

我如何使用LLVM的exisiting函数传递

我一直在使用LLVM,并且我很困惑如何从我自己的传球中使用不同的现有传球? 准确地说,我的程序需要针对任何给定指令的Dominance Frontier Calculation。 LLVM已经具有作为函数传递实现的Dominance函数Class。 我如何在我的Module Pass中调用它/使用它? 警告:我没有真正的经验,答案可能不正确或过时。 (它主要基于过时的LLVM资源:版本1.3。) 添加一个包含: #include "llvm/Analysis/DominanceFrontier.h" 如果

implicit vs explicit interfaces

What are the pros/cons of using implicit interfaces (Cases 2 and 3; templates) vs using explicit interfaces (Case 1; pointer to abstract class) in the following example? Code that doesn't change: class CoolClass { public: virtual void doSomethingCool() = 0; virtual void worthless() = 0; }; class CoolA : public CoolClass { public: virtual void doSomethingCool() { /* Do cool stuff t

隐式与显式接口

在以下示例中,使用隐式接口(情况2和3;模板)与使用显式接口(情况1;指向抽象类的指针)有什么优缺点? 不变的代码: class CoolClass { public: virtual void doSomethingCool() = 0; virtual void worthless() = 0; }; class CoolA : public CoolClass { public: virtual void doSomethingCool() { /* Do cool stuff that an A would do */ } virtual void worthless() { /* Worthless, but must be implemen