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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Matrix
  5.   {
  6.    public:
  7.    Matrix operator*(const double &v)const { Matrix m; return m; }
  8.    friend Matrix operator*(const double &v,const Matrix &m) { return m.operator*(v); }
  9.   };
  10.  
  11. int main()
  12.   {
  13.    Matrix a,b;
  14.    b=a*2;
  15.    a=2*b;
  16.    return 0;
  17.   }
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https://ideone.com/tIDEIu
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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