()这样的代码 friend std::ostream& operator<<(std::ostream& os, const Student& stu); public: std::string m_id;//学号 std::string m_name;//姓名 int m_age;//年龄 std::string m_date;//生日 }; std::ostream & operator<<(std::o
现在让我示范一个overloaded operator的作法,只要在以下类的代码中加入第18~21行的+号的重载代码,即可完成CPoint的加法运算: 1classCPoint{23public:45CPoint()6{7_x=0;89}1011CPoint(floaty){1213_x=y;14}15floatx(){return_x;}16voidx(floatxval){_x=xval;}1718CPointoperator+(constCPoint& pt)co...
MyClass& MyClass::operator=(const MyClass &rhs) { // Check for self-assignment! if (this == &rhs) // Same object? return *this; // Yes, so skip assignment, and just return *this. ... // Deallocate, allocate new space, copy values... return *this; } Or, you can simplify t...
endl; } //在全局范围内重载+ complex operator+(const complex &A, const complex &B){ complex C; C.m_real = A.m_real + B.m_real; C.m_imag = A.m_imag + B.m_imag; return C; } int main(){ complex c1(4.3, 5.8); complex c2(2.4, 3.7); complex c3; c3 = c1 + c2; c3...
Operator Overloading讓我們可以自己定義Operator的功能,讓程式可以更精簡,C#也有,不過不是很強調,但C++非常強調Operator Overloading,這是C++的一大特色。 Introduction 以下程式我們試著實做一個『複數』型別,複數由實部,有虛部,複數的加法為(a + bi) + (c +di) = (a +c) + (b+d)i,乘法則是(a + ...
m_cents); } int main() { Cents c1(6), c2(8); Cents c3 = c1 + c2; Cents c4 = c1 + 2; cout << c3.getCents() << endl; cout << c4.getCents() << endl; return 0; } 和友元函数相比,成员函数的运算符重载只有一个参数。c1看起来变成了前缀。而这里隐藏了*this,即c1.operator...
public: Complex operator + (const Complex& obj){ Complex temp; temp.real = real + obj.real; temp.img = img + obj.img; return temp; } ……. }; In this case, the operator is invoked by the first operand. Meaning, the line Complex c3 = c1 + c2; translates to c1.operator+(c2...
To understand the need for operator overloading, imagine that you need to perform matrix math operations in your program. You could instantiate a couple 2-dimensional arrays and do what you need. However, add the requirement for the matrix behavior to be reusable. Because you need to do the...
(原創) 如何使用Operator Overloading? (C/C++) 2007-01-18 01:46 − Operator Overloading讓我們可以自己定義Operator的功能,讓程式可以更精簡,C#也有,不過不是很強調,但C++非常強調Operator Overloading,這是C++的一大特色。... 真OO无双 1 56873 相关推荐 (...
31operator--(Integer&a); 32//Postfix: 33friendconstInteger 34operator--(Integer&a,int); 35}; 36 37//Global operators: 38constInteger&operator+(constInteger&a) { 39cout<<"+Integer\n"; 40returna;//Unary + has no effect 41}