Awesome

Joy0

This is the original version of Joy, created by Manfred von Thun. It is kept as a reference implementation in order to make sure that other implementations don't deviate too much from this one.

Changes

Some system header files have been added. Functions declarations have been ANSIfied, allowing compilation with all warnings turned on.

The return value of newnode needs to be captured in a variable. This introduces a sequence point, preventing unspecified behaviour. TRACING was used to locate the problem, so it was kept in the source code. CORRECT_GARBAGE_COLLECTOR prints a runtime error in case of memory overflow.

Warning

The source code assumes that sizeof(long) == sizeof(void *).

Build

make

Test

cd test2
for i in *.joy
do
    ../joy $i >$i.out
done
grep -l false *.out