2019 Internet blackout in Iran was a great chance to analyze National Information Network. At the time I was in Tehran playing around to find a way out. The blackout took less than 24 hours to fully operate. According to blackout’s timeline, there are at least 4 groups of internet…

Many programmers already know about header files and function declarations; however only few ones might know about different types of function declarations. There are 2 types of function declarations: function declaration without prototypes, and function declaration with prototypes. When you declare a function without prototype, compiler doesn’t know anything about…