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Extreme C

Extreme C

By : Kamran Amini
4.5 (29)
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Extreme C

Extreme C

4.5 (29)
By: Kamran Amini

Overview of this book

There’s a lot more to C than knowing the language syntax. The industry looks for developers with a rigorous, scientific understanding of the principles and practices. Extreme C will teach you to use C’s advanced low-level power to write effective, efficient systems. This intensive, practical guide will help you become an expert C programmer. Building on your existing C knowledge, you will master preprocessor directives, macros, conditional compilation, pointers, and much more. You will gain new insight into algorithm design, functions, and structures. You will discover how C helps you squeeze maximum performance out of critical, resource-constrained applications. C still plays a critical role in 21st-century programming, remaining the core language for precision engineering, aviations, space research, and more. This book shows how C works with Unix, how to implement OO principles in C, and fully covers multi-processing. In Extreme C, Amini encourages you to think, question, apply, and experiment for yourself. The book is essential for anybody who wants to take their C to the next level.
Table of Contents (27 chapters)
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Index

Integration with Python

Python is an interpreted programming language. This means that the Python code is read and run by an intermediate program that is called an interpreter. If we are going to use an external native shared library, it is the interpreter that loads the shared library and makes it available to the Python code. Python has a special framework for loading external shared libraries. It is called ctypes and we are going to use it in this section.

Loading the shared libraries using ctypes is very straightforward. It only requires loading the library and defining the inputs and output of the functions that are going to be used. The following class wraps the ctypes-related logic and makes it available to our main Stack class, shown in the upcoming code boxes:

from ctypes import *
class value_t(Structure):
  _fields_ = [("data", c_char_p), ("len", c_int)]
class _NativeStack:
  def __init__(self):
    self.stackLib = cdll.LoadLibrary(
       ...
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Extreme C
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