Assignment Operators

Here, we see the different ways in which a variable can be assigned values.
There are following assignment operators supported by C language:

Operators	What They Do ..	Meaning
=	Assigns values to variables.	a=b
+=	Assigns a value incremented by some value.	a=a+b
-=	Assigns a value decremented by some value.	a=a-b
*=	Assigns a value multiplied by some value.	a=a*b
/=	Assigns a value divided by some value.	a=a/b
%=	Assigns a value got by taking by some value.	a=a%b
<<=	Assigns a value got by shifting some bits to left.	a=a<
>>=	Assigns a value got by shifting some bits to left.	a=a>>b
&=	Performs the AND operation on corresponding bits of values.	a=a&b
|=	Performs the OR operation on corresponding bits of values.	a=a|b
^=	Performs the XOR operation on corresponding bits of values.	a=a^b

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Simple Assignment

There are two ways as shown :
1. During declaration
2. Later in the program

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Syntax for Simple Assignment:

[variable]=[variable\constant]

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Example:

#include< stdio.h>

int main()

{

int a=10,b;

b=20;

printf("Assignment During Declaration  a=%d ",a);

printf("\nAssignment After Declaration b=%d ",b);

return 0;

}

This will produce following output:

Assignment During Declaration a=10

Assignment After Declaration  b=20

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Compound Assignment Operators

AS SHOWN , these use a combination of assignment operator and either arithmetic or bitwise operators.

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Syntax for Compound Assignment :

[variable][operators]=[variable\constant]

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C Example

#include<stdio.h>

int main() {

	int a=1,b=2,c=3,d=4,e=6,f=5;

	printf("\n a becomes %d , b becomes  %d , c becomes  %d ,d becomes  %d ,e becomes  %d , f becomes  %d",a,b,c,d,e,f);

	a+=b;

	c-=b;

	d*=b;

	e/=b;

	f%=b;

	printf("\na becomes %d , b becomes  %d , c becomes  %d ,d becomes  %d ,e becomes  %d , f becomes  %d",a,b,c,d,e,f);

	a&=b;

	c|=b;

	d^=b;

	e<<=b;

	f>>=b;

	printf("\na becomes %d , b becomes  %d , c becomes  %d ,d becomes  %d ,e becomes  %d , f becomes  %d",a,b,c,d,e,f);

	return 0;

}

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