Assignment Operator:

The assignment operator ( = ) is the most commonly used binary operator in C. It evaluates the operand on right hand side and then assigns the resulting value to a variable on the left-hand side. The right operand can be a variable, constant, function call or expression. The general form of representing assignment operator is:

            

variable = expression/ constant/ function call

In addition, C has a set of ‘shorthand’ assignment operators of the form. Where v is variable, exp is an expression and op is a C binary arithmetic operator. The operator op = is known as the shorthand assignment operator.

The assignment statement      

            v op=  exp;

is equivalent to

            v = v op ( exp );

The use of shorthand assignment operators has three advantages:

1.      What appears on the left-hand side need not be repeated and therefore it becomes easier to write.

2.      The statement is more concise and easier to read.

3.      The statement is more efficient.

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