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No. it's not required
The C++ language guarantees that delete p will do nothing if p is equivalent to NULL. As you might get the test backwards, and as most testing methodologies force you for performs test explicitly every branch point, you should not put in the redundant if test.
Wrong:
if (p != NULL)
delete p; Right: delete p;
Function Overloading Function overloading is a form of polymorphism. Function overloading facilitates explaining one function having many forms. In other words it facilitates e
Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send
algorithm to find whether a given number is prime number or not? using pseudo code and flowchart
I need the c++ program of class bank accout including balance,rate of interests
what is programming?
A: No. There is nothing you can do in C++ which you cannot do in C. In spite of everything
Unary Minus Operator( Negation) This operand can be used to negate the value of a variable. It is also used to state a negative number, here a minus(-) sign is prefixed to the
i have an array of structs, and am trying to make a pointer that can point to a certain struct within the array
Here is a short program. It prints out the value of a variable "x". Ernie and Bert disagree about what will be printed: Ernie says, the value gets changed in "changeX" so it will p
Differences between a pointer and a reference 1. A reference must always point to some object where as this restriction is not imposed on a pointer. e.g. int *pi = 0;
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