October 2020
Beginner to intermediate
464 pages
8h 17m
English
Content preview from C Programming For Dummies, 2nd Edition
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Chapter 20
Memory Chunks and Linked Lists
IN THIS CHAPTER
Grabbing a chunk of memory with malloc()
Initializing and allocating memory
Resizing an allocated memory chunk
De-allocating memory
Creating space for a structure
Building a linked list
Editing structures in a linked list
Another reason for having a pointer variable is to hold the address of a freshly allocated chunk of memory. This approach is far better than creating an array and guessing at its size: Memory chunks can be assigned a size on the fly, resized, and banished. You can’t perform such actions with an array — well, not in civilized society.
Dovetailing from memory allocation comes the ultimate thrill ride in the C language amusement park: the linked list. It combines the mystery of structures with the dread of pointers ...
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