The article is similar to my old post C++: Save Data To A Local File That Humans Can Read. I want to save a little data into a local file that human can’t read it. It is best done conveniently through C Plus Plus.The following example shows the entire logic. Read more…
Rotate Vector To Orthogonal Direction Just like in the picture, we will rotate vector to which is orthogonal to the neighbor . The vector is the cross product of and . #include <iostream> #include “point.hpp” int main() { Point m( 1, 0, 0 ); Point n( 1, 0.5, 0 ); Read more…
I write a few file IO functions which are used in windows and mac os x. bool CopyAFile(const std::string inFile, const std::string outFile); bool RemoveFile(const std::string filePath); void RemoveDir(const std::string folderPath); void MoveAFile(const std::string oldFile, const std::string newFile); void CheckFolderExist(const std::string folderPath); bool FileExists( const std::string path ); void HandleLastSlash( Read more…
Add subdirectories and use VTK library and Qt in my projects. The file structure looks like the following image. projectB generates lib and dll files which will be used by projectA. projectA show a window and print message from Base class in projectB. The file CMakeLists.txt in the root directionary Read more…
typeid.name The function typeid.name can give us the information about variable. Header file: typeinfo #include <typeinfo> int main() { vector<bool> vec{ false, true }; auto ans = vec[0]; cout << typeid(ans).name() << endl; bool tmp = false; cout << typeid(tmp).name() << endl; int value = 12; cout << typeid(value).name() << Read more…
Exercises: 232. Implement Queue using Stacks Implement a first in first out (FIFO) queue using only two stacks. The implemented queue should support all the functions of a normal queue (push, peek, pop, and empty). Solution: take advantage of the features of both stacks #include <iostream> #include <set> #include <vector> #include <algorithm> #include <stack> Read more…
The parameter reference is frequently used CPlusPlus program, C++11 support copy construction and move construction for a new object, Use typeinfo or boost::typeindex to judge the variable’s data type information, The container std::array help us to manage a fixed size array.
The function template std::bind generate a forwarding call wrapper of origin function, it returns a function object.
We can just call the wrapper to invoke the origin function.
The class template std::function is function wrapper, the instance of it can be copied and store.
Create a library project in the outside IDE such as Virtual Studio and Qt Creator. Write our custom C++ class to add more functionalities for the Godot node.