C - Operators

Operators:

Operators are symbols and used to perform some mathematics operations.
There are 6 kinds of operators,

1.Arithmetic operators: 

This is normal mathematic operations such as,

Example program for the arithmetic operator:

 #include<stdio.h>

 #include <conio.h>

 void main()

 {

    int a,b;

    clrscr();

    printf("Enter a and b value:");

    scanf("%d %d",&a,&b);

    printf("Addition value is:%d\n",a+b);

    printf("Subtraction value is:%d\n",a-b);

    printf("Multiplication value is:%d\n",a*b);

    printf("Division value is:%d\n",a/b);

    printf("Modulo value is:%d\n",a%b);

    printf("a++ value is:%d\n",a++);

    printf("b-- value is:%d\n",a--);

   getch();

}

Output:

2. Relational Operators:

It is used to compare two or more data.

Note:

This logical operators mostly used in conditions.

3. Logical Operators:

It is used to combine simple relational statements into more complex expressions. 

4. Assignment Operators:

This operators are used to getting the result in the same variable(input/output).

 

Example program for the assignment operator:

 #include<stdio.h>

 #include <conio.h>

 void main()

 {

    int a;

    clrscr();

    printf("Enter a  value:");

    scanf("%d",&a);

    a+=20;

    printf("a value is:%d",a); 

   getch();

}

Output:

5. Conditional Operators (? :)

It checks itself the condition and execute the statement depending on the condition.

Syntax:

Condition?exp1:exp2;

Example program for the conditional operator:

 #include<stdio.h>
 #include <conio.h>
 void main() 
 { 
    int a=5,b=3,big;

   clrscr();

 big=a>b?a:b;

 printf("Biggest value is %d ",big);
 getch();

}

Output:

6. Bitwise Operators:

It is used to manipulate the data at a bit level and it operates on integer only.

                                                                                  Binary table

Bitwise AND(&):

The truth table for ‘ & ‘is shown below(It means True=1 and false=0.)

a=7 of binary code:0111

b=8 of the binary code is:1000

The result of the a&a value is 0000(i.e 0).

Example program for the bitwise AND operator:

#include <stdio.h>

#include<conio.h>

 void main() {

                   unsigned int a;

                   unsigned int b;

                   int c = 0;         

                   clrscr();

                   printf("Enter a and b value : ");

                   scanf("%d %d",&a,&b);

                   c = a&b;    

                   printf("Bitwise AND of a&b value is: %d\n", c );

                   getch();

 }

Output:

Bitwise OR(|):

The truth table for ‘ | ‘is shown below

a=7 of binary code:0111

b=8 of the binary code is:1000

The result of a|b value is 1111(i.e 15).

Example program for the bitwise OR operator:

#include <stdio.h>

#include<conio.h>

void main() {

                   unsigned int a;

                   unsigned int b;

                   int c = 0;         

                   clrscr();

                   printf("Enter a and b value : ");

                   scanf("%d %d",&a,&b);

                   c =a|b;    

                   printf("Bitwise OR of a|b value is: %d\n", c );

                   getch();

}

Output:

Bitwise Exclusive OR(^):

The truth table for ‘ ^ ‘is shown below

a=13 of binary code:1101

b=8 of the binary code is:1000

The result of a^b value is 0101(i.e 5).

Example program for the bitwise Exclusive OR operator:

#include <stdio.h>

#include<conio.h>

void main() {

                   unsigned int a;

                   unsigned int b;

                   int c = 0;         

                   clrscr();

                   printf("Enter a and b value : ");

                   scanf("%d %d",&a,&b);

                   c =a^b;    

                   printf("Bitwise Exclusive OR of a^b value is: %d\n", c );

                   getch();

}

Output:

Bitwise Shift left (<<):

Each box called bits and a=6 and a<<1 then a=12.

Explanation:

Result: a of left shit value is 12.

Example program for the bitwise shift left operator:

#include <stdio.h>

#include<conio.h>

void main() {

                    unsigned int a;

                   int c = 0;         

                    clrscr();

                   printf("Enter a  value : ");

                   scanf("%d",&a);

                   c =a<<1;    

                   printf("Bitwise left shit of a value is: %d\n", c );

                   getch();

}

Output:

Bitwise Shift right(>>):
The shit right is similar to the left shit.
For example, If a=6 and a>>2 then its value is 3.

Explanation:

Result: a of right shit value is 3.



Example program for the bitwise shift right operator:

#include <stdio.h>

#include<conio.h>

void main() {

                   unsigned int a;

                    int c = 0;         

                    clrscr();

                   printf("Enter a value : ");

                   scanf("%d",&a);

                   c =a>>1;    

                   printf("Bitwise right shit of a value is: %d\n", c );

                   getch();

}

Output:

Bitwise One's complement(~):

The truth table for ‘ ~ ‘is shown below

If a=6(binary code is 0110),
 and ~a(0111) value is 7. 
using a negative signature for one's complement(~a=-7).


Example program for the bitwise one's complement operator:

#include <stdio.h>

#include<conio.h>

void main() {

                    unsigned int a;

                    int c = 0;         

                    clrscr();

                    printf("Enter a  value : ");

                    scanf("%d %d",&a,&b);

                    c =~a;

                    printf("Bitwise one\'s of a value is: %d\n", c );

                    getch();

}

Output:

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