superkeep的博客

nlohmann::json std::string file_name = "file_name.json"; std::ifstream ifs(file_name, std::ios::in); if( !ifs.good() ) { std::cout << __FILE__ << __LINE__ <&l...

std::ifstream读整个文件的方法： std::string file_name = "..."; // your file name std::ifstream ifs(file_name, std::ios::in); if( !ifs.good() ) { std::cout << __FILE__ << __L...

1>pcl/kdtree/flann.h第50行// before is this, but it show opencv's this .h file//#include <flann/flann.hpp>#include </usr/include/flann/flann.hpp>2> /usr/include/flann/util/seri...

http://blog.sina.com.cn/s/blog_794cebfb0100zuj3.htmlhttp://photo.blog.sina.com.cn/showpic.html#blogid=6ff3146301015vxj&amp;url=http://s7.sinaimg.cn/orignal/6ff31463x79c9d56c9c86

引用：https://stackoverflow.com/questions/3984296/model-view-controller-design-pattern-code-exampleHere's a quick example ：class Button; // Prewritten GUI elementclass GraphGUI {public: Gra...

https://www.jianshu.com/p/eabd09eec0a9

宏: MACROifdef MACRO_0elif defined MACRO_1endif

网上有一篇 使用 config:https://www.e-learn.cn/content/wangluowenzhang/147643使用宏 可以： qmake “DEFINES += MACRO_SSSSSS” SSSS.pro

方法（一）FILE* fstream = 0;fstream = fopen(file_name.c_str(), "r");int worked = (fstream ? 1 : 0);//if file is empty?char buf;int read_count = fread(&buf, 1, 1, fstream);std::cout<<__FILE__<<__

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