Let Us C (C Programming Language) - Yashwant Kanetkar (Fifth Edition) - Computer Science Engineering (CSE) PDF Download

 Page 1


 
 
 
 
 
Let Us C 
Fifth Edition 
 
 
Yashavant P. Kanetkar 
 
 
 
 
 
 
Page 2


 
 
 
 
 
Let Us C 
Fifth Edition 
 
 
Yashavant P. Kanetkar 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page 3


 
 
 
 
 
Let Us C 
Fifth Edition 
 
 
Yashavant P. Kanetkar 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dedicated to baba 
Who couldn’t be here to see this day... 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page 4


 
 
 
 
 
Let Us C 
Fifth Edition 
 
 
Yashavant P. Kanetkar 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dedicated to baba 
Who couldn’t be here to see this day... 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
About the Author 
Destiny drew Yashavant Kanetkar towards computers when the IT 
industry was just making a beginning in India. Having completed 
his education from VJTI Mumbai and IIT Kanpur in Mechanical 
Engineering he started his training company in Nagpur. 
Yashavant has a passion for writing and is an author of several 
books in C, C++, VC++, C#, .NET, DirectX and COM 
programming. He is a much sought after speaker on various 
technology subjects and is a regular columnist for Express 
Computers and Developer 2.0. His current affiliations include 
being a Director of KICIT, a training company and DCube 
Software Technologies, a software development company. In 
recognition to his contribution Microsoft awarded him the 
prestigious “Best .NET Technical Contributor” award recently. 
He can be reached at kanetkar@kicit.com. 
 
 
 
 
 
       
 
Page 5


 
 
 
 
 
Let Us C 
Fifth Edition 
 
 
Yashavant P. Kanetkar 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Dedicated to baba 
Who couldn’t be here to see this day... 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
About the Author 
Destiny drew Yashavant Kanetkar towards computers when the IT 
industry was just making a beginning in India. Having completed 
his education from VJTI Mumbai and IIT Kanpur in Mechanical 
Engineering he started his training company in Nagpur. 
Yashavant has a passion for writing and is an author of several 
books in C, C++, VC++, C#, .NET, DirectX and COM 
programming. He is a much sought after speaker on various 
technology subjects and is a regular columnist for Express 
Computers and Developer 2.0. His current affiliations include 
being a Director of KICIT, a training company and DCube 
Software Technologies, a software development company. In 
recognition to his contribution Microsoft awarded him the 
prestigious “Best .NET Technical Contributor” award recently. 
He can be reached at kanetkar@kicit.com. 
 
 
 
 
 
       
 
Acknowledgments 
It has been a journey of almost a decade from the stage the book 
idea of “Let Us C” was conceived up to the release of this Fifth 
Edition. During this journey I have met so many students, 
developers, professors, publishers and authors who expressed their 
opinions about Let Us C. They have been the main motivators in 
my effort to continuously improve this book. 
In particular I am indebted to Manish Jain who had a faith in this 
book idea, believed in my writing ability, whispered the words of 
encouragement and made helpful suggestions from time to time. 
The five editions of this book saw several changes and facelifts. 
During this course people like Ajay Joshi, Amol Tambat, Ajay 
Daga, Nandita Shastri, Mrunal Khandekar and Rahul Bedge 
helped in writing programs, spotting bugs, drawing figures and 
preparing index. I trust that with their collective acumen all the 
programs would run correctly in all situations.  
Anup Das, my colleague has a lot of influence on this Fifth 
Edition. He helped my clarify my thoughts and pointing me in the 
direction of Windows and Linux. He sincerely wanted this edition 
to offer “C, in today’s perspective”. I am hopeful that his dream 
has been realized. 
I thank Seema, my wife, for her friendship and for her 
contributions in everything that I do in IT in ways more than she 
could ever guess. Though she is a Gynecologist by profession she 
has the uncanny ability to come up with suggestions that make me 
feel “Oh, why didn’t it occur to me”. 
And finally my heartfelt gratitude to the countless students who 
made me look into every nook and cranny of C. I would forever 
remain indebted to them.. 
v