In this tutorial, we discuss Operator in C programming language with the example.
C language provides a rich set of operators to manipulate variables. We can divide all the C programming operators into the following groups:
Arithmetic operators are used to calculating mathematical expressions in the same way that they are used in algebra. The following table list the arithmetic operators
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How works arithmetic in C language
Example 1
#include <stdio.h>
#include <stdlib.h>
int main()
{ //+,-*,./%
//printf("Hello world!\n");
int a,b;
int c,d,e,f,g;
printf("Enter a valua to a\n");
scanf("%d",&a);
printf("Enter a valua to b\n");
scanf("%d",&b);
c=a+b,
d=b-a;
e=a*b;
f=b/a;
g=b%a;
printf("a+b value is :%d \n",c);
printf("a-b value is :%d \n",d);
printf("a*b value is :%d \n",e);
printf("a/b value is :%d \n",f);
printf("a%b value is :%d \n",g);
getch();
return 0;
}
When the above code compiled and executed, it produces the following result
Enter a value to a
In C Programming, the assignment operator is used for assigning a significant value to a variable. Equal to(=) is a mostly known assignment ope, in algebra.
The following table list the assignment operators in C language
#include <stdio.h>
#include <stdlib.h>
int main()
{
int a,b,x,y,z,m,n,p,q;
printf("Enter a valua to a\n");
scanf("%d",&a);
printf("Enter a valua to b\n");
scanf("%d",&b);
x=a+=b;
printf("a+=b value is :%d \n",x);
y=a-=b;
printf("a-=b value is :%d \n",y);
z=a*=b;
printf("a*=b value is :%d \n",z);
m=a/=b;
printf("a/=b value is :%d \n",m);
n=a%=b;
printf("a%=b value is :%d \n",n);
p=a&=b;
printf("a&=b value is :%d \n",p);
q=a^=b;
printf("a^=b value is :%d \n",q);
return 0;
}
When the above code compiled and executed, it produced the following result
Enter a value to a Enter a value to b 36 Enter a value to b 12 a+=b value is : 48 a-=b value is :24 a*=b value is :288 a/=b value is :24 a&=b value is :0 a^=b value is :12
A relational operator compares the relationship between two variables(operands). relational operators perform based on boolean expression and return either true(1) or false(0).
The following table list the relational operators in C language
#include <stdlib.h>
int main()
{
int x=10,y=10,z=20;
printf("x is equal to y :%d\n",x==y); //true
printf("x is equal to z :%d\n",x==z); //false
printf("y is equal to z :%d\n\n",y==z); //false
printf("x is greater than to y :%d\n",x>y); //false
printf("x is greater than to z :%d\n",x>z); //false
printf("y is greater than to z :%d\n\n",y>z); //false
printf("x is less than to y :%d\n",x<y); //false
printf("x is less than to z :%d\n",x<z); //true
printf("y is less than to z :%d\n\n",y<z); //true
printf("x is less than or equal to y :%d\n",x<=y); //true
printf("x is less than or equal to z :%d\n",x<=z); //true
printf("y is less than or equal to z :%d\n\n",y<=z); //true
printf("x is greater than or equal to y :%d\n",x>=y); //true
printf("x is greater than or equal to z :%d\n",x>=z); //false
printf("y is greater than or equal to z :%d\n\n",y>=z); //false
printf("x is not equal to y :%d\n",x!=y); //false
printf("x is not equal than to z :%d\n",x!=z); //true
printf("y is not equal to z :%d\n\n",y!=z); //true
printf("End the program");
getch();
return 0;
}
When the above code compiled and executed, it produces the following result
x is equal to y: 1
x is equal to z :0
y is equal to z :0
x is greater than to y :0
x is greater than to z :0
y is greater than to z :0
x is less than to y :0
x is less than to z: 1
y is less than to z: 1
x is less than or equal to y: 1
x is less than or equal to z: 1
y is less than or equal to z: 1
x is greater than or equal to y: 1
x is greater than or equal to z :0
y is greater than or equal to z :0
x is not equal to y :0
x is not equal than to z: 1
y is not equal to z: 1
End the program
Program 2
#include <stdio.h>
#include <stdlib.h>
int main()
{//== != < > <= >=
int a,b;
a=20,b=15;
if(a<b){
printf("a less than b\n");
}else{
printf("a greater than or equal to b\n");
}
if(a>b){
printf("a greater than b\n");
}else{
printf("a less than or equal to b\n");
}
if(a<=b){
printf("a less than or equal to b\n");
}else{
printf("a greater than b\n");
}
if(a>=b){
printf("a greater than or equal to b\n");
}else{
printf("a less than b");
}
if(a==b){
printf("a equal to b\n");
}else{
printf("a not equal to b\n");
}
if(a!=b){
printf("a not equal to b\n");
}else{
printf("a equal to b\n");
}
//printf("Hello world!\n");
return 0;
}
When the above code compiled and executed, it produces the following result
a less than or equal to b a greater than b a greater than b a greater than or equal to b a not equal to b a not equal to b
The following table list the unary operators in C language
How works unary operator in C language
Program
#include <stdio.h>
#include <stdlib.h>
int main()
{
int x=10,y=5,z;
z=+x;
printf("+x value is :%d\n",z);//Unary plus
z=-y;
printf("-y value is :%d\n",z);//Unary minus
z=++x;
printf("++x value is :%d\n",z);//prefix increment
z=y++;
printf("y++ value is :%d\n",z);//postfix increment
z=--x;
printf("--x value is :%d\n",z);//prefix decrement
z=y--;
printf("y-- value is :%d\n",z);//postfix decrement
printf("End the program\n");
getch();
return 0;
}
When the above code compiled and executed, it produces the following result
+x value is :10 -y value is :5 ++x value is :11 y++ value is :6 --x value is 10 y-- value is :6 End the program
The logical operator performs based on boolean expression, return either true or false.
The following table list the logical operators in C language
#include <stdio.h>
#include <stdlib.h>
int main()
{
int age=20;
if(age<=18 && age >=13){
printf("you are a teenager\n");
}else{
printf("you are old or child\n");
}
if(age>=18 || age <=13){
printf("you are not a teenager\n");
}else{
printf("you are a yanger\n");
}
return 0;
}
When the above code compiled and executed, it produces the following result
you are a teen ager you are not teenager
In C language.the bitwise operator is an operator used to performs bit or binary pattern operation(bitwise operation).
The following table list the bitwise operators in C language
The following table list the operator precedence
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