I read On most operating systems, the addresses in memory starts from highest to lowest. So I am wondering if the heap, stack, and global memory all fall under the same ordering..?

If I created...

pointerType* pointer = new pointerType  //creates memory address 0xffffff

And then created a local varible on the stack

localObject object

would localObjects address be 0xfffffe

Or is heap and stack ordering completely different.