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In C++, both dot (.) and arrow (->) operators are used to access members of classes, structures, and unions. But they are used in different scenarios based on how the object is being accessed. In this article, we will learn the differences and uses of these two operators in C++. Dot Operator (.) The dot(.) operator is used to access members (variables and functions) of a class, structure, or union when working with its object (not a pointer). It allows you to access and manipulate the object's properties by directly interacting with members of an object. Syntax Here is the ... Read More

When it comes to operator overloading in C++, there are 3 basic rules you should follow. like all such rules, there are so exceptions. These 3 rules are −1.  Whenever the meaning of an operator is not obviously clear and undisputed, it should not be overloaded. Instead, provide a function with a well-chosen name. Basically, the first and foremost rule for overloading operators, at its very heart, says:Don’t do it.That might seem strange, but there are only a few cases where operator overloading is appropriate. The reason is, it is hard to understand the semantics behind the application of an ... Read More

There is no such operator in C++. Sometimes, we need to create wrapper types. For example, types like unique_ptr, shared_ptr, optional and similar. Usually, these types have an accessor member function called .get but they also provide the operator→ to support direct access to the contained value similarly to what ordinary pointers do.The problem is that sometimes we have a few of these types nested into each other. This means that we need to call .get multiple times or to have a lot of dereference operators until we reach the value.Something like this −wrapper wp; wp.get().get().length(); wp.get()->length();This can be a ... Read More

C++ provides two pointer operators, which are Address of Operator (&) and Indirection Operator (*). A pointer is a variable that contains the address of another variable or you can say that a variable that contains the address of another variable is said to "point to" the other variable. A variable can be any data type including an object, structure or again pointer itself.The indirection Operator (*), and it is the complement of &. It is a unary operator that returns the value of the variable located at the address specified by its operand. For example, Example#include using namespace ... Read More

C++ provides two pointer operators, which are Address of Operator (&) and Indirection Operator (*). A pointer is a variable that contains the address of another variable or you can say that a variable that contains the address of another variable is said to "point to" the other variable. A variable can be any data type including an object, structure or again pointer itself.The address of Operator (&), and it is the complement of *. It is a unary operator that returns the address of the variable(r-value) specified by its operand. For example, Example#include using namespace std; int main ... Read More

The array operator provides the direct access to array elements using their index. What is Array Operator in C++? The arrow operator in C++ is also known as the member access operator, which is used to access a member of a class, structure, or union with the help of a pointer to an object. The arrow operator allows you to directly access the member, unlike the dot operator, which first dereferences the pointer and then uses the dot operator to access it. So instead of using (*pointer).member, you can directly use pointer->member. Syntax Here is the syntax to access array ... Read More

The dot operator (.) in C++ is a member access operator, which is used to access the members (variables and functions) of a class, structure, and union through an object. It allows you to access and manipulate the properties of an object's data members and member functions. The dot (.) operator is used for various purposes. Here is the following list of its uses. Accessing Data Members Calling Member Functions Working with nested structures /Objects Chained Function Calls ... Read More

The conditional operator (? :) is a ternary operator (it takes three operands). The conditional operator works as follows −The first operand is implicitly converted to bool. It is evaluated and all side effects are completed before continuing.If the first operand evaluates to true (1), the second operand is evaluated.If the first operand evaluates to false (0), the third operand is evaluated.The result of the conditional operator is the result of whichever operand is evaluated — the second or the third. Only one of the last two operands is evaluated in a conditional expression. The evaluation of the conditional operator ... Read More

Unary operator is operators that act upon a single operand to produce a new value. The unary operators are as follows:OperatorsDescriptionIndirection operator (*)It operates on a pointer variable and returns an l-value equivalent to the value at the pointer address. This is called "dereferencing" the pointer.Address-of operator (&)The unary address-of operator (&) takes the address of its operand. The operand of the address-of operator can be either a function designator or an l-value that designates an object that is not a bit field and is not declared with the register storage-class specifier.Unary plus operator (+)The result of the unary plus ... Read More

There are many types of operators in C++. These can be broadly categorized as: arithmetic, relational, logical, bitwise, assignment and other operators.Arithmetic OperatorsAssume variable A holds 10 and variable B holds 20, then −OperatorDescription       +        Adds two operands. A + B will give 30-Subtracts second operand from the first. A - B will give -10*Multiplies both operands. A * B will give 200/Divides numerator by de-numerator. B / A will give 2%Modulus Operator and remainder of after an integer division. B % A will give 0++Increment operator, increases integer value by one. A++ will give ... Read More