题目内容
Which of the following operator functions cannot be global, i.e., must be a member function?
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Which of the following operator functions cannot be global, i.e., must be a member function?
Binary operators can be overloaded as non-member functions, but unary operators can only be overloaded as member functions.
How an operator works on built-in types cannot be changed by operator overloading.
Given the fragmented definition of the A class.class A{public:A(): num1(0), num2(0){}private:int num1, num2;};int main() {A a1, a2;cin>>a1>>a2;a2 = a1 + 10;A c = 4.5 + a1;a2++;cout <
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