Module 1 - Session 2 - Examples

This module contains several examples demonstrating various C programming concepts.

sample1_hello

• helloworld.c: A simple program that prints "hello world" to the console.

sample2_errno

• errnoexample.c: Demonstrates the use of the errno variable to handle errors when opening a file. It prints error messages using perror and strerror.

sample3_assertions

• assertexample.c: Shows how to use assertions to validate conditions in a program. It includes a function to test the type of a triangle based on its sides and uses assertions to ensure the sides form a valid triangle.

sample4_exitflows

• exitflows.c: Illustrates the use of atexit, at_quick_exit, and abort functions to handle different exit flows in a program. It registers functions to be called on normal and quick exits and demonstrates the use of exit, quick_exit, and abort.