Category : allocation

I am learning Qt to do a certain project, I found this code online. I want to try it but I get an error "allocation of incomplete type ‘Ui::Paint’" in the .cpp file. this is the header file Paint.h #ifndef PAINT_H #define PAINT_H #include <QWidget> #include <QTimer> #include <QResizeEvent> #include <paintscene.h> namespace Ui { class ..

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Say we have this component object. struct Component{ int data; }; Consider these two approaches a class have a component. class Entity_Heap{ //only a pointer contributes to sizeof(Entity_Heap) Component* HeapComponent = new Component; }; class Entity_Inline{ //what is the proper way to talk about this allocation? //it isn’t always actually on the stack… inlined memory? ..

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I want to store int[] inside B and store B[] inside C. There are also other fields that act the same way. In a certain run-time situation, I know that all vector (.bf1,.bf2,.cf1,.cf2 and cs) that created in a code scope must have certain size (e.g. num_bf1,num_bf2,num_cf1,num_cf2 and num_c). #include <iostream> #include <vector> class B{public: ..

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