Sign in to follow this  
Amnesty

passing pointers not by value

Recommended Posts

Is there any way to do this? I have a function that sets a pointer to NULL. But after the funtion ends, the pointer isnt NULL. Any way to do this? Thanks.

Share this post


Link to post
Share on other sites
You can pass the pointer by reference, or a pointer to the pointer. e.g.:

void some_function(void * & ptr) {
ptr = 0;
}

Share this post


Link to post
Share on other sites
Quote:
Original post by Amnesty
Is there any way to do this?

I have a function that sets a pointer to NULL. But after the funtion ends, the pointer isnt NULL. Any way to do this?

Thanks.


Is the function's only purpose to set the pointer to NULL? If so, you'd be saving time by just setting it to NULL instead of calling a function to do it.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this