2. Pointers and Memory

Cuchulainn · Posted: Mon Dec 28, 2009 2:37 pm Post subject:

int* m;
delete m;

int* n = new int;
delete n;
delete n;

int* p = new int[20];
delete p;

int* q = new int[20];
delete q;
delete [] q;

int* t = new int[20];
delete [] t;
delete t;

{
int* r = new int;
}

int* p1 = p1;

Cuchulainn · Posted: Wed Jan 28, 2009 10:56 am Post subject:

Is the boost scoped_ptr a 'better' auto_ptr?

Is scope_ptr ~ const auto_ptr?

Excel4Net · Joined: 26 Dec 2008 Posts: 8

What is the auto_ptr? When would you use auto_ptr instead of a pointer?

What is the benefits of using auto_ptr compared tp shared_ptr of the Boost library?

What is the caveats of using auto_ptr?

Cuchulainn · Posted: Wed Jan 21, 2009 12:03 pm Post subject: 2. Pointers and Memory

What is stack, heap and static memory?

Describe how to create heap-based objects, avoiding the common problems that novices have with raw pointers.

What is

double** mat;
double* mat[10];
double mat[10][20];

How would you initialise the matrix in each case; how do you manage memory?

//
??
pointe vs reference
dereferencing
null pointer
uninitialised pointer