Question

How to disable implicit conversion in C++

Answer 1

#include <iostream>
 
class Example {
private:
    int m_A;
public:
     
    explicit Example(int a) : m_A(a) {} // explicit disable implicit Conversion
     
    void Print() const {
        std::cout << m_A << "\n";
    }
};
   
  
int main() {
    Example ex = 98; // Implicit Conversion // Constrct Example with 98
       
    ex.Print();
}
    
    
    
    
/*
run:
    
error: conversion from ‘int’ to non-scalar type ‘Example’ requested
    
*/

 

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