clang

mac fatal error: 'stdlib.h' file not found

旧时模样 提交于 2020-03-13 13:30:53
//1.检查头文件是否存在 $clang++ -E -x c++ - -v < /dev/null ignoring nonexistent directory "/usr/include/c++/v1" ignoring nonexistent directory "/usr/include" 注:说明macOS SDK 的头文件不存在 //2.安装xcode-select $xcode-select --install //3.获取header pkg $xcode-select -p //4.查看config $brew config //5.安装头文件 $ cd /Library/Developer/CommandLineTools/Packages/ $ open macOS_SDK_headers_for_macOS_10.14.pkg 来源: oschina 链接: https://my.oschina.net/u/2832792/blog/3035896

c++的clock使用说明

夙愿已清 提交于 2020-03-13 10:12:06
The high_resolution_clock is not implemented consistently across different standard library implementations, and its use should be avoided. It is often just an alias for std::chrono::steady_clock or std::chrono::system_clock, but which one it is depends on the library or configuration. When it is a system_clock, it is not monotonic (e.g., the time can go backwards). For example, for gcc's libstdc++ it is system_clock, for MSVC it is steady_clock, and for clang's libc++ it depends on configuration. Generally one should just use std::chrono::steady_clock or std::chrono::system_clock directly

Ubuntu18.04 vim8.2 Yomcompleteme clang 编译、安装及使用

南笙酒味 提交于 2020-03-10 12:16:47
简介 简介: 源码编译使用vim及其插件. 内容包含: vim的编译安装, llvm clang的编译安装, 插件youcompleteme的编译安装使用, 以及vim其他插件的使用. 搭建环境: Ubuntu18.04.4 server版(desktop版应该也适用) 环境还原方式: 坚果云上保存: .vim 文件的压缩包,以免以后换环境时都得下载, 使用时直接解压至 ~/.vim GitHub上保存: .vimrc , .clang-format , .ycm_extra_conf.py 等配置文件, 地址: https://github.com/whuwzp/vim_config 主要参考网址如下, 基本上都是参照官方方法, 而不是在博客网站上拾人牙慧: vim源码编译: https://github.com/ycm-core/YouCompleteMe/wiki/Building-Vim-from-source llvm clang编译: https://llvhttps://m.org/docs/GettingStarted.html#getting-started-with-llvm youcompleteme编译使用: https://github.com/ycm-core/YouCompleteMe#linux-64-bit 其他c++插件: https:/

iOS 消息传递

非 Y 不嫁゛ 提交于 2020-03-05 21:13:18
Objective-C 调用方法实际上是发送消息的过程,先判断接收者是否为空,如果不为空经历以下几步: 1、先从方法的缓存中查找,如果没找到进入下一步。 2、通过对象的isa指针找到类对象,在类对象的方法列表中查找;如果没找到就通过superclass指针逐层查找直到NSObject对象。如果还是没找到就执行方法动态解析。 3、方法动态解析调用: + (BOOL)resolveInstanceMethod:(SEL)sel 方法来为实例方法 sel 动态添加实现方法。如果没添加进入下一步。 4、重定向消息的接收者,通过 - (id)forwardingTargetForSelector:(SEL)aSelector 来返回可处理这条消息的对象。如果这个对象不响应这个消息则进入消息转发。 5、消息转发调用 - (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector 和 - (void)forwardInvocation:(NSInvocation *)anInvocation 如果通过以上过程还没有处理这条消息就会发生crash( unrecognized selector sent to instance xxxx ), 接下来一步步实现 方法动态解析、重定向消息的接收者、消息转发 方法动态解析

自动部署clang内核编译环境。

狂风中的少年 提交于 2020-03-05 16:16:49
针对小白,本人做了一个简陋的py程序,以帮助其构建内核。预装系统ubuntu18。 目前前三个功能已经完善,第四个功能正在开发,以及今后的GCC编译内核(针对3.X及以下)的编译方式后续会进行添加。 1.环境搭建及clang工具链编译,只需要按1回车等待完成即可。 2.内核配置修改示例,内核补丁需要放入与py脚本同一目录下的patch目录内,在提示是否需要添加补丁的时候会自动创建: 3.clang编译内核,此处使用tc-build构建的gcc及clang,可输入压缩文件以及文件夹: 文件夹,脚本会首先执行make clean 进行清除。 压缩包:首先解压到当前目录的clang_make_kernel文件架内,然后进行编译 后续功能将持续更新中。。。。 python3脚本下载:Q群共享文件内,Q群:701937935 二维码加群: CSDN下载地址 来源: CSDN 作者: 峨眉揽月 链接: https://blog.csdn.net/qq_29705179/article/details/104671031

the ability with LLVM Clang 9.0 to compile Linux kernel 5.3+

巧了我就是萌 提交于 2020-03-05 13:30:10
https://www.phoronix.com/scan.php?page=article&item=clang-linux-53&num=1 https://www.phoronix.com/scan.php?page=news_item&px=LLVM-9.0-Clang-9.0-Features http://www.rpmfind.net/linux/rpm2html/search.php?query=kernel-release-clang&submit=Search+...&system=&arch= RPM resource kernel-release-clang Found 8 RPM for kernel-release-clang Package Summary Distribution Download kernel-release-clang-desktop-clang-5.5.7-2.x86_64.html Linux Kernel for desktop use with x86_64 OpenMandriva Cooker for x86_64 kernel-release-clang-desktop-clang-5.5.7-2.x86_64.rpm kernel-release-clang-desktop-clang-5.5.0-1.x86_64

How to get the macro and its expansion with clang libtooling?

喜你入骨 提交于 2020-03-05 04:07:09
问题 I am working on clang libtooling. So far I am managed to get the macro where it is getting referred in the source file through visitDeclRefExpr(DeclRefExpr *DR) But can I get a list of macros with its name and its expansion as string. exampleprogram.c #define abc ab #define sum 0 int main() { int ab; abc = abc + 0; return 0; } can I get the output like the following abc -- ab sum -- 0 How can I achieve this output with clang libtooling. How can I implement with the clang libtooling? Please

How to get the macro and its expansion with clang libtooling?

故事扮演 提交于 2020-03-05 04:07:06
问题 I am working on clang libtooling. So far I am managed to get the macro where it is getting referred in the source file through visitDeclRefExpr(DeclRefExpr *DR) But can I get a list of macros with its name and its expansion as string. exampleprogram.c #define abc ab #define sum 0 int main() { int ab; abc = abc + 0; return 0; } can I get the output like the following abc -- ab sum -- 0 How can I achieve this output with clang libtooling. How can I implement with the clang libtooling? Please

Error during cmake build, missing header file that I know the path to (mac)

℡╲_俬逩灬. 提交于 2020-03-04 15:34:35
问题 This post is bumping a 3 year old unresolved issue from here I am following instructions from here. As the title suggests, I'm running mac os mojave. I can successfully build with cmake, but I cannot make successfully and receive the following error: $ cmake --build . -v -- include_dir=/usr/include/ ... ... ... [ 32%] Building C object projects/compiler-rt/lib/builtins/CMakeFiles/clang_rt.eprintf.dir/eprintf.c.o cd /Users/anthonymcknight/Documents/cubing/bfs/lab4/cilk/llvm/build/projects

AST matcher on a specific node

邮差的信 提交于 2020-03-04 05:03:22
问题 I wrote a AST matcher for finding specific type statements. In the matched nodes I calculated the neighbor siblings of that node. Now I need to run matcher on the neighbor nodes to verify they satisfies my condition or not. The clang AST matcher matches the whole tree node one by one. I want to run matcher against a particular node and return true if the node matches my required condition. Is this possible? 回答1: I suggest to implement your own matcher that will encapsulate the logic of