A kōan 公案 (pinyin: gōng'àn) is a story, question, or statement, which is used in Zen practice to provoke the "great doubt" and test a student's progress in Zen practice.
Inspired by ruby koans you may learn the syntax and practices of C through a series of lessons in the form of Unit tests. These preprepared tests are all failing, by going through each one and repairing them to make them pass you will learn a small component of the C programming language.
The test are written in the Criterion unit testing library.
- Install Criterion
- run
make clean all - run
bin/c_koans - Start fixing!
Inside src/ you will find a file for each of the following topics in C:
- Basics: variables, assignment, addresses, intro pointers
- Pointers: arithmetic, pass by reference/value, address of, NULL
- Functions: function pointers, prototypes
- Arrays & Strings: label + offset vs pointer + offset, sizeof and its pitfalls
- Preprocessor: defines, conditional defines, code pitfalls (semicolon in define, use in for loop)
- Control Statements: If, While, For, Switch, Do While, Goto, Break, (pitfalls: If only takes next line if no {})
- Structs: more sizeof, typedef, pointer dereference, access
->vs., (One test with Union) - Dataclasses (There's a better name for this): Enum, Extern, Static (Make a function that persists data in static var), Void
- I/O: Open (read, write, append), Read, Write, Close, Dup2
- Malloc: Dynamic memory allocation vs Stack, calloc, realloc, free
- Linked List Project: This one will be left for you to implement we have given all the unit tests for it, its a small culminating project that uses all you've learned from these tests.