Thread: Syntax for 'new' and 'delete'?

predefined class

int * a = new int;

user defined class, call it Cat;

Cat * Frisky = new Cat;

delete a;
delete Frisky;


new returns a pointer to the first location in memory assigned to the "new object". Note if you want a group of objects then you do this:

Cat * kittens = new Cat[3];
delete [] kittens;

Hmmm it seems like you have some syntax errors .

Code:

Cat Frisky = new Cat;

This should work (make sure that it maches the constructors for Cat).

Code:

new Cat Frisky;

Shouldn´t work. I think you mean

Code:

//Invokes copy-construtor
new Cat(Frisky);
//Make sure you store the return object in a Cat-pointer to avoid a memory leak

Code:

Cat Frisky;
new Frisky Fluffy;//Se my previous explantion why not us it like this
//New return a memory adress and should be stored in a Cat-pointer
new Cat = Frisky;

Try change it to

Code:

Cat *Frisky;
Frisky = new Cat;

Also make sure you are creating a console application and nothing else!

Originally posted by LordVirusXXP
Thanks guys, I guess this thread can be closed now

Please dont use the link below to ask for the Mods to close this thread.......there's no need for it to be closed....you have what you want and that's great.....others can take the thread further if they wish....it will only be closed when it breaks one of the board rules (as shown at the top of each forum)