C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  new/malloc & free store/heap          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Kavya Guest Posted: Mon Oct 30, 2006 9:29 am    Post subject: new/malloc & free store/heap I always thought heap and free store is same thing but I recently starting hearing from people that these are different terms. They say new uses free store and malloc/calloc/realloc uses heap. Can someone through some light on this issues with some standard reference if possible. Back to top Old Wolf Guest Posted: Mon Oct 30, 2006 10:10 am    Post subject: Re: new/malloc & free store/heap Kavya wrote: Quote: I always thought heap and free store is same thing but I recently starting hearing from people that these are different terms. They say new uses free store and malloc/calloc/realloc uses heap. Can someone through some light on this issues with some standard reference if possible. Generally, the two terms are interchangeable, when referring to the free store. A "heap" is a data structure which is sorted so that each node is (greater | less than) all of its children. The term has come to be synonymous with free store because traditional memory allocators stored the list of free memory blocks in a heap structure. However, some people prefer to say "free store" because modern memory allocators may not use a heap structure, so it is not very accurate to call them a "heap". On any particular system, you may or may not find that new and malloc allocate memory out of the same memory pool (whatever you might call that pool). They might do, or they might not. Which is why you should be careful to match new with delete, and malloc with free. Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language (comp.lang.c++) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.