Difference Between Call by value and Call by Reference

Call by value	Call by reference
1.       The variable/value/expression is sent to the function is known as call by value.	1.       If the address is sent to the function it is known as call by reference
2.       Syntax: function(variable,variable2);	3.       Syntax:function(&variable,&variable2);
4.here formal parameters is variable Ex: intx	4.       Here formal parameters is pointers Ex:int*x
5.       If the value is sent to the function ,that value cannot be modified	6.       Whenthe address is sent to the function the value is modified by using ‘*’operator

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Call by value

  Call by Reference
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