skorbut is a simple teaching environment for a subset of C with a memory visualizer. If you ever had trouble visualizing arrays and pointers, you have come to the right place.
skorbut is German for scurvy, an illness that is caused by a lack of Vitamin C. skorbut also lacks C in the sense that it implements only a restricted subset of C.
Click this download link.
If for some reason this doesn't work, click skorbut.jar in the list above, then Raw or View Raw.
skorbut requires Java 8 or newer to run. Make sure you have Java installed!
On most operating systems, you can simply run a jar by double-clicking on it.
If double-clicking does not start the system, open a terminal inside the download folder and write:
java -jar skorbut.jar
The code is automatically saved to a new file each time you click the start button.
The save folder is named skorbut, and it is located in your home directory.
The full path is displayed in the title bar.
Yes, just hit Enter or Tab.
Not yet...
Non-exhaustive list off the top of my head:
| Feature | Priority |
|---|---|
| preprocessor | very low |
| variadic functions | very low |
| compound assignment | low |
| casts | low |
| null pointer | medium |
| union | very low |
| pass struct | low |
| return struct | low |
You don't need to include anything, the following standard library functions are already available:
- printf
- scanf
- putchar
- getchar
- malloc
- free
- realloc
- qsort
- bsearch
skorbut does not support multiple translation units, so there would be no point in supporting header files.
For integral constants, you can use anonymous enumerations like enum { N = 10 };
Not really. Most casts in C are either unnecessary (like float to int) or invoke undefined behavior (like float* to int*).
Note that C allows assignment between void* and any other pointer type, so you can simply write:
int * p = malloc(10 * sizeof(int));
Not yet, but I will probably open-source skorbut when I lose interest in further development. Don't hold your breath though ;)