Objective-C Programming: The Big Nerd Ranch Guide

Bitwise-AND

You can also bitwise-AND two bytes together to create a third. In this case, a bit on the third byte is 1 only if the corresponding bits in the first two bytes are both 1.

Figure 38.4  Two bytes bitwise-ANDed together

This is done with the & operator. Add the following lines to main.c:

#​i​n​c​l​u​d​e​ ​<​s​t​d​i​o​.​h​>​ i​n​t​ ​m​a​i​n​ ​(​i​n​t​ ​a​r​g​c​,​ ​c​o​n​s​t​ ​c​h​a​r​ ​*​ ​a​r​g​v​[​]​)​ {​ ​ ​ ​ ​u​n​s​i​g​n​e​d​ ​c​h​a​r​ ​a​ ​=​ ​0​x​3​c​;​ ​ ​ ​ ​u​n​s​i​g​n​e​d​ ​c​h​a​r​ ​b​ ​=​ ​0​x​a​9​;​ ​ ​ ​ ​u​n​s​i​g​n​e​d​ ​c​h​a​r​ ​c​ ​=​ ​a​ ​|​ ​b​;​ ​ ​ ​ ​p​r​i​n​t​f​(​"​H​e​x​:​ ​%​x​ ​|​ ​%​x​ ...