Get Function Comparison Between Two Parameters

Void get (void * & P, Int & N)

{

If (P = NULL)

{N = 10;

P = new void [N];

}

.....

}

The parameter must be specified. If the parameter is null, it can be extracted. The parameter also leads to the space size.

The returned value can be other values, such as bool.

The disadvantage is the risk of hanging pointers, which is very troublesome.

 

Void * Get (void * P = NULL, int n = 10)

{

If (P = NULL) P = new void [N];

... ...

Return P;

}

 

The parameter can be set to the default value to avoid leading to a suspended pointer.

However, the returned results are restricted and must be returned.

In addition, if you need to specify the size, it will be confused. We recommend that you use this function when returning objects.