|Fundamental C: Getting Closer To The Machine (I/O Press)|
|Wednesday, 13 March 2019|
This book takes an approach that is close to the hardware, introducing addresses, pointers, and how things are represented using binary. An important idea is that everything is a bit pattern and what it means can change. As a C developer, you need to think about the way data is represented, and Harry Fairhead encourages this. He emphasizes the idea of modifying how a bit pattern is treated using type punning and unions. This power brings with it the scourge of the C world – undefined behavior - which is ignored in many books on C. Here, not only is it acknowledged, it is explained, together with ways to avoid it.
A particular feature of the book is the way C code is illustrated by the assembly language it generates. This helps you understand why C is the way it is, and what effect your choice of code has.
Author: Harry Fairhead
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