C Programming Practice Compiled using gcc -std=c11 -pedantic-errors file_name.c [other_file.c, …]

• Hello World
• User Input Utilities
• Verify User Input
• Age Comparer

Prints "Hello, world!" to the screen (duh)

• printf()

• function declaration
• compiling
• #include

Utility functions used in other projects.

• strlen()
• printf()
• getchar()

• header files
• error handling in c (via parameter passing)
• pass by reference (via pointer passing)
• strings (explicitly setting '\0' to mark end of char array)

Prompts the user for a positive integer, validates input and responds appropriately.

• printf()

• loadIntRepresentedAsCharArrayFromUser()
• strtol_strict()

• pointers
• header files
• compiling multiple c files at once
• error handling in c (via parameter passing)
• pass by reference (via pointer passing)
• dereferencing (using & symbol)

Compares user's age with programmer's age.

• printf()

• loadIntRepresentedAsCharArrayFromUser()
• strtol_strict()

• pointers
• header files
• compiling multiple c files at once
• error handling in c (via parameter passing)
• pass by reference (via pointer passing)
• dereferencing (using & symbol)