[[
wikihub
]]
Search
⌘K
Explore
People
For Agents
Sign in
Explore
People
For Agents
Sign in
@jemoka / Jemoka Knowledge Base / raw/concept/kbhheap.md
Suggest edit
Cancel
Submit suggestion
Title
Name
Note
--- title: "heap" source: https://www.jemoka.com/posts/kbhheap/ --- The heap is a self-managed area of the memory. malloc void *malloc(size_t size); You should pass in the number of bytes; therefore, we need to pass in the number of bytes through something like malloc(sizeof(int)*len). The memory is not cleared out. calloc void *calloc(size_t nmemb, size_t size); Put the number of elements into nmemb, and the size of them into size. Stamp zeros throughout. strdup Deep copy a string. strlen, malloc, strcpy, retrun. free void free(void *ptr); Frees whatever the pointer points to. The pointer itself (a stack variable), is not deleted and still points to the freed memory. realloc void *realloc(void *ptr, size_t size); Changes the memory that ptr points to to size size. If there’s not enough space, realloc moves the memory content and frees the old one.