pakled_engineer·vor 11 Jahren·discussPrinceton's CS50 course on edx.org covers C and recommends other good books like Hacker's Delight.This is also a good presentation for safer C programs https://www.bsdcan.org/2010/schedule/events/172.en.html
This is also a good presentation for safer C programs https://www.bsdcan.org/2010/schedule/events/172.en.html