Category : default-constructor

Context According to the tutorial, if a class defines a default constructor Rectangle();, it’sinvoked via: int main () { Rectangle recta; // valid – default constructor Rectangle rectb(); // valid – but not a default constructor Rectangle rectc{}; // valid – default constructor } It is said that the second call is a "function declaration", ..

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I am trying to create a TCP Modbus Master class in c++, and in this class I need to have a Poco::Net::SocketStream object defined. class TCPModbusMaster { private: Poco::Net::SocketStream str; public: TCPModbusMaster(Poco::Net::SocketStream str) { this->str = str; } }; But in this situation, visual studio gives me those 2 errors: 1- no default constructor exists ..

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I found the following piece of code in an open source implementation of a game. struct Renderable { std::shared_ptr<UniformInput> uniform; std::shared_ptr<Geometry> geometry; bool alpha_blending = true; bool depth_test = true; }; struct ShaderUpdate : Renderable { ShaderUpdate(std::shared_ptr<UniformInput> const& uniform) : Renderable{uniform, nullptr} {} ShaderUpdate(std::shared_ptr<UniformInput> && uniform) : Renderable{std::move(uniform), nullptr} {} }; ShaderUpdate inherits from ‘Renderable’ ..

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