Skip to main content

C Operators

Declaration & Assignments

C Operators

C operators are symbols that is used to perform mathematical or logical manipulations. C programming language is rich with built-in operators. Operators take part in a program for manipulating data and variables and form a part of the mathematical or logical expressions

Types of Operators in C

C offers various types of operators having different functioning capabilities.
  • Arithmetic Operators
  • Relational Operators
  • Logical Operators
  • Assignment Operators
  • Increment and Decrement Operators
  • Conditional Operator
  • Bitwise Operators
  • Special Operators

Arithmetic Operators

Arithmetic Operators are used to perform mathematical calculations like addition (+), subtraction (-), multiplication (*), division (/) and modulus (%).
OperatorDescription
+Addition
–Subtraction
*Multiplication
/Division
%Modulus

C Program to Add Two Numbers

Example:
#include <stdio.h>
void main()
{
 int i=3,j=7,k; /* Variables Defining and Assign values */
 k=i+j;
 printf("sum of two numbers is %d\n", k); 
}Run 
Program Output:
c-add-two-numbers

Increment and Decrement Operators

Increment and Decrement Operators are useful operators generally used to minimize the calculation, i.e. ++x & x++ means x=x+1 or -x & x−−means x=x-1. But there is a slight difference between ++ or −− written before or after the operand. Applying the pre-increment first add one to the operand and then the result is assigned to the variable on left where as post-increment first assigns the value to the variable on left and then increment the operand.
OperatorDescription
++Increment
−−Decrement

Relational Operators

Relational operators are used to compare two quantities or values.
OperatorDescription
==Is equal to
!=Is not equal to
>Greater than
<Less than
>=Greater than or equal to
<=Less than or equal to

Logical Operators

C provides three logical operators when we test more than one condition to make decisions. These are: && (meaning logical AND), || (meaning logical OR) and ! (meaning logical NOT).
OperatorDescription
&&And operator. Performs a logical conjunction on two expressions.
(if both expressions evaluate to True, result is True. If either expression evaluates to False, result is False)
||Or operator. Performs a logical disjunction on two expressions.
(if either or both expressions evaluate to True, result is True)
!Not operator. Performs logical negation on an expression.

Bitwise Operators

C provides special operator for bit operation between two variables.
OperatorDescription
<<Binary Left Shift Operator
>>Binary Right Shift Operator
~Binary Ones Complement Operator
&Binary AND Operator
^Binary XOR Operator
|Binary OR Operator

Assignment Operators

Assignment operators applied to assign the result of an expression to a variable. C has a collection of shorthand assignment operators.
OperatorDescription
=Assign
+=Increments, then assigns
-=Decrements, then assigns
*=Multiplies, then assigns
/=Divides, then assigns
%=Modulus, then assigns
<<=Left shift and assigns
>>=Right shift and assigns
&=Bitwise AND assigns
^=Bitwise exclusive OR and assigns
|=Bitwise inclusive OR and assigns

Conditional Operator

C offers a ternary operator which is the conditional operator (?: in combination) to construct conditional expressions.
OperatorDescription
? : Conditional Expression

Special Operators

C supports some special operators
OperatorDescription
sizeof() Returns the size of an memory location.
& Returns the address of an memory location.
* Pointer to a variable.

Program to demonstrate the use of sizeof operator

Example:
#include <stdio.h>
void main()
{
      int i=10; /* Variables Defining and Assign values */
      printf("integer: %d\n", sizeof(i));
}Run 
Program Output:
c-sizeof-operator
Labels:

Comments

Post a Comment

For Programs Click Here

Programs

Popular posts from this blog

Python Lists

Python Lists Dealing with data in a structured format is quiet generous, and this is possible if those data are set accordingly in a specific manner. So, Python provides these data structures named ‘lists’ and ‘tuples’ that are used to organize data in  single set. Python has 6 built-in sequences and among them the most famous are “lists and tuples”. The lists are containers that hold a number of other objects in a given order. It usually puts into practice the sequence protocol and allows programmers to add or remove objects from that sequence. Each element of the sequence is assigned a number i.e. he index and the first index is 0 (zero). This versatile data-type of Python is written in a sequence of list separated by commas between expressions. Creating Lists To build a list, just put a number of expressions in square brackets. The syntax is: Syntax: lst1 = [ ] # lst1 is the name of the list lst2 = [ expression1 , …. , expression_N ] Example: #!/usr/bin/python ls...
Post a Comment
Read more

C++ Objects and Classes

C++ Object Oriented C++ Objects and Classes In object-oriented programming languages like C++, the data and functions (procedures to manipulate the data) are bundled together as a self-contained unit called an object. A class is an extended concept similar to that of structure in C programming language; this class describes the data properties alone. In C++ programming language, class describes both the properties (data) and behaviors (functions) of objects. Classes are not objects, but they are used to instantiate objects. What is a class? A class is an abstract data type similar to ‘ C structure ‘. Class representation of objects and the sets of operations that can be applied to such objects. Class consists of Data members and methods. Primary purpose of a class is to held data/information. This is achieved with attributes which is also know as data members. The member functions determine the behavior of the class i.e. provide definition for supporting various operations on data held...
Post a Comment
Read more

Java Method Overriding

Java Method Overriding Declaring a method in the subclass which already exists there in the parent class is known as method overriding. When a class is inheriting a method from a superclass of its own, then there is an option of overriding the method provided it is not declared as final. The advantage of using overriding is the ability to classify a behavior that’s specific to the child class and the child class can implement a parent class method based on its necessity. There are certain rules that a programmer should follow in order to implement overriding. These are: In Java, a method can only be written in the child class and not in same class. Argument list should be exactly the same as that of the overridden method of that class. Instance methods can also be overridden if they are inherited by the child class. A constructor cannot be overridden. Final – declared methods cannot be overridden. Any method that is static cannot be used to override. The return type must have to be the...
Post a Comment
Read more