C Brain Teasers (for Raymond Rhine) by Dan Gookin

Author:Dan Gookin
Language: eng
Format: epub
Tags: Pragmatic Bookshelf
Publisher: The Pragmatic Bookshelf, LLC

Further Reading

Numberphile’s explanation of positive and negative zero

https://www.youtube.com/watch?v=8t1TC-5OLdM

The concept of “signed zero” in programming

https://dbpedia.org/page/Signed_zero

A discussion on the difference between zero and NULL

https://www.differencebetween.info/difference-between-zero-and-null

Puzzle 12 On the Case

​ ​#include <stdio.h>​

​

​ ​int​ ​main​()

​ {

​ ​char​ a;

​

​

​ ​for​( a=​'A'​; a<=​'Z'​; a++ )

​ putchar( a | 0x20 );

​ putchar(​'
'​);

​

​ ​for​( a=​'a'​; a<=​'z'​; a++ )

​ putchar( a & 0xdf );

​ putchar(​'
'​);

​

​ ​return​(0);

​ }

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