Linked Questions

I am writing a small matrix library in C++ for matrix operations. However, my compiler complains, where before it did not. This code was left on a shelf for six months and in between I upgraded my ...

a.h #include "logic.h" ... class A { friend ostream& operator<<(ostream&, A&); ... }; logic.cpp #include "a.h" ... ostream& logic::operator<<(ostream& os, A& a) {...

How can I overload the operator++ in two different ways for postfix a++ and prefix ++a?

In C++, the concept of returning reference from the copy assignment operator is unclear to me. Why can't the copy assignment operator return a copy of the new object? In addition, if I have class A, ...

I have implemented operator< for a certain object. Logically, if !(a < b) and !(b < a) it means a == b. Is this inferred automatically? Can I use == if I only implement <?

I read that an overloaded operator declared as member function is asymmetric because it can have only one parameter and the other parameter passed automatically is the this pointer. So no standard ...

How to define operator< on n-tuple (for example on 3-tuple) so that it satisfy strict weak ordering concept ? I know that boost library has tuple class with correctly defined operator< but for ...

I'm implementing vector class and I need to get an opposite of some vector. Is it possible to define this method using operator overloading? Here's what I mean: Vector2f vector1 = -vector2; Here's ...

Can we overload operator++ for pre-increment and post-increment? i.e. calling SampleObject++ and ++SampleObject gives the correct results. class CSample { public: int m_iValue; // just to ...

I have a question about the return value of operator overloading in C++. Generally, I found two cases, one is return-by-value, and one is return-by-reference. So what's the underneath rule of that? ...

There are two ways to overload operators for a C++ class: Inside class class Vector2 { public: float x, y ; Vector2 operator+( const Vector2 & other ) { Vector2 ans ; ...

So, after researching everywhere for it, I cannot seem to find how to create a class arrow operator, i.e., class Someclass { operator-> () /* ? */ { } }; I just need to know how to work ...

I have to overload a == operator in C++ for a class with many attributes. The operator should return true, if and only if all attributes are equal. A shortcut might be useful, if these attributes ...

Which is best practice (in this case): bool Foo::operator==(const Foo& other) { return bar == other.bar; } // Implementation 1 bool Foo::operator!=(const Foo& other) { return bar != ...

Say I am working with a class: class Foo{ public: std:string name; /*...*/ }/*end Foo*/ and I provide an overload for operator== bool operator==(const Foo& fooObj, const std::string& ...