Category : assignment-operator

My ClassA looks like this: class ClassA { private: static uint32_t IDCOUNTER; uint32_t _id = -1; public: ClassA(); ~ClassA(); ClassA(const ClassA&) = delete; void operator=(const ClassA&) = delete; }; I want to create one specific instance of ClassA and I want it to be passed around but I don’t want it to ever be duplicated ..

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The self-contained program section below leads to this error on Visual Studio 2019: "function "partition_data::operator=(const partition_data &)" (implicitly declared)" is a deleted function. Based on research around this type of problem I have defined a move assignment operator because of the unique_ptr but I still get the above error. How can I resolve this error ..

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The code is: #include<iostream> using namespace std; class Integer { int num; public: Integer() { num = 0; cout<<"1"; } Integer(int arg) { cout<<"2"; num = arg; } int getValue() { cout<<"3"; return num; } }; int main() { Integer i; i = 10; // calls parameterized constructor why?? cout<<i.getValue(); return 0; } In the ..

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I have a class that declares a vector of vectors in a .h header file as follows: #include <vector> class Mapper { public: … Mapper(const uint num_rows, const uint num_cols, const double initial_val); … private: … std::vector<std::vector<double>> grid_map_; … }; And the definition of the Mapper class is implemented in a corresponding .cpp. However, I’m ..

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