| // thread sleep in C++11 | |
| void ThreadSleep(int duration_ms) { | |
| std::cout << "Thread Sleeping..." << std::endl; | |
| auto start = std::chrono::high_resolution_clock::now(); | |
| std::this_thread::sleep_for(std::chrono::milliseconds(duration_ms)); | |
| auto end = std::chrono::high_resolution_clock::now(); | |
| std::chrono::duration<double, std::milli> elapsed = end - start; | |
| cout << << "Thread Awake. Sleeping for " << elapsed.count() << " ms." << std::cout; | |
| } |
| Q: How to get rid of git submodules untracked status? | |
| A: move into the submodule's directory, then | |
| git reset --hard |
| Eigen::Quaternion<float> q; | |
| Eigen::AngleAxis<float> aaZ(pcl::deg2rad(rz), Eigen::Vector3f::UnitZ()); | |
| Eigen::AngleAxis<float> aaY(pcl::deg2rad(ry), Eigen::Vector3f::UnitY()); | |
| Eigen::AngleAxis<float> aaX(pcl::deg2rad(rx), Eigen::Vector3f::UnitX()); | |
| q = aaZ * aaY * aaX; |
| // ==================== pull from Facebook/rockdb@github ==================== | |
| class ListJni { | |
| public: | |
| // Get the java class id of java.util.List. | |
| static jclass getListClass(JNIEnv* env) { | |
| jclass jclazz = env->FindClass("java/util/List"); | |
| assert(jclazz != nullptr); | |
| return jclazz; | |
| } |
| #include <stdio.h> | |
| #include <string.h> | |
| void swap(char* a, char* b) | |
| { | |
| *a ^= *b; | |
| *b ^= *a; | |
| *a ^= *b; | |
| } |
FWIW: I didn't produce the content present here. I've just copy-pasted it from somewhere over the Internet, but I cannot remember exactly the original source. I was also not able to find the author's name, so I cannot give him/her the proper credit.
改編自 Effective Engineer (https://gist.github.com/rondy/af1dee1d28c02e9a225ae55da2674a6f)
原文已經是文摘了，取自 Effective Engineer (http://www.effectiveengineer.com/)
有鑒於 1)它是英文 以及 2)文章太長，實在不利傳播，所以一直想要翻譯+濃縮這篇，分享給台灣的工程師（我認為不只工程師，所有知識工作者都適用）
翻譯的同時，也加入自己的理解，所以可能和原文有出入，有疑義可參考原文。 (由於筆者是軟體工程師，所以舉例的部分都會偏向科技業和軟體工程)
| {"lastUpload":"2019-11-11T11:14:00.196Z","extensionVersion":"v3.4.3"} |
| # xenial (ubuntu 16.04) | |
| /usr/include/c++/5 | |
| /usr/include/c++/5.4.0 | |
| /usr/include/eigen3 | |
| /usr/include/pcl-1.7 | |
| /usr/local/include/ceres | |
| /opt/ros/kinetic/include | |
| # bionic (ubuntu 18.04) | |
| /usr/include/c++/7 |
| # General | |
| sudo apt-get update | |
| sudo apt-get install -y \ | |
| git gitk gitweb lighttpd \ | |
| cmake \ | |
| curl \ | |
| openssh-server \ | |
| vim \ | |
| tmux \ | |
| tree \ |