plus(+) operator

[Atheist]

Operator overloading should follow the following syntax:

	 MyClass operator+(const SomeOtherClass &value)
	 {
		 MyClass result;
                 // calculate new values for result based on the addition of this instance and 'value'
                 return result;
	 }

It sounds to me like you are wanting to modify the instance itself inside the + operator overload. I would strongly advice against that. It would mean that this addition:

Student myStudent;
myStudent.feespaid = 0;
myStudent + 5.0;

Would actually alter the "myStudent" instance. An addition between two operands should not modify the operands, that is, they should stay the same after the addition has taken place.
So, if anything, what you really want to overload is the += operator:

	 Student& operator+=(const float value)
	 {
		 this->feespaid += value;
		 return *this;
	 }

Altough I feel that an addition between a Student and a float is abit illogical, atleast now it doesnt violate the "rules" of addition