August 2011
Intermediate to advanced
552 pages
23h 48m
English
Content preview from Advanced Mac OS X Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Dynamic Memory Allocation
“Dynamic memory” is memory that comes from the heap. The heap of the program starts off at an OS-defined default amount of space available for program consumption. As you allocate memory from the heap, it fills up, and then your program asks for more memory from the OS. Memory that you have released can be reused by your program. Memory allocated and subsequently freed is still charged to your program by the operating system. If you allocate 50 megabytes for temporary workspace and then free it all, your program will still have the 50 megabytes of memory allocated to it. This will eventually be swapped out to disk (on desktop systems) since you might not be using it. The total amount of memory can be considered a high ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.