Modern C for Absolute Beginners: A Friendly Introduction to the C Programming Language

© Slobodan Dmitrović 2021

S. DmitrovićModern C for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-6643-4_2

2. Our First Program

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

This section describes the main program entry point, how to work with comments, and how to write a simple “Hello World” program.

2.1 Function main()

Every C program that produces an executable file must have a starting point. This starting point is the function main. The function main is the function that gets called when we start our executable file. It is the program’s main entry point. The signature of the function main is:

int main(void) {}

The function main is of type int, which stands for integer, followed by the reserved name main, followed by an empty list of parameters ...